Summary. Plant organogenesis requires control over division planes and anisotropic cell wall growth, which each require spatial patterning of cells. Polyhedral plant cells can display complex patterning in which individual faces are established as biochemically distinct domains by endomembrane trafficking. We now show that, during organogenesis, the Arabidopsis endomembrane system specifies an important additional cellular spatial domain: the geometric edges. Previously unidentified membrane vesicles lying immediately beneath the plasma membrane at cell edges were revealed through localization of RAB-A5c, a plant GTPase of the Rab family of membrane-trafficking regulators. Specific inhibition of RAB-A5c activity grossly perturbed cell geometry in developing lateral organs by interfering independently with growth anisotropy and cytokinesis without disrupting default membrane trafficking. The initial loss of normal cell geometry can be explained by a failure to maintain wall stiffness specifically ...

Plant hormones are important signaling molecules that control many developmental processes, including cell division, differentiation, organogenesis. In contrast to their animal counterparts, plant hormones can regulate a multitude of apparently unrelated physiological processes, their roles often overlap and they mutually modulate their effects. This indicates the important role of synergistic and antagonistic interactions between different plant hormones. However, the molecular basis of hormonal interactions is still largely unknown. The physiologically best characterized interaction is between auxin and cytokinin. These two plant hormones exhibit synergistic interaction to promote cell division in cell culture, but antagonistic interaction to regulate lateral root development or lateral bud outgrowth. The main aim of our studies is to reveal the molecular components and mechanisms balancing the output of auxin and cytokinin pathways in order to regulate plant organogenesis. We use lateral root ...

Plant hormones are important signaling molecules that control many developmental processes, including cell division, differentiation, organogenesis. In contrast to their animal counterparts, plant hormones can regulate a multitude of apparently unrelated physiological processes, their roles often overlap and they mutually modulate their effects. This indicates the important role of synergistic and antagonistic interactions between different plant hormones. However, the molecular basis of hormonal interactions is still largely unknown. The physiologically best characterized interaction is between auxin and cytokinin. These two plant hormones exhibit synergistic interaction to promote cell division in cell culture, but antagonistic interaction to regulate lateral root development or lateral bud outgrowth. The main aim of our studies is to reveal the molecular components and mechanisms balancing the output of auxin and cytokinin pathways in order to regulate plant organogenesis. We use lateral root ...

Plant biology, developmental biology and physiology, genetics, cellular and molecular biology University of Helsinki. Yrjö Helariutta is Professor of Plant Developmental Biology at the University of Helsinki and Research Director of the universitys Institute of Biotechnology. His research fields are plant biology, developmental biology and physiology, genetics, and cellular and molecular biology. Helariutta and his research team focus their research on the development of vascular systems of plants. They will investigate how the plant stem cell population, called vascular cambium, is genetically controlled to pattern and promote the formation of the vascular tissues in a tree trunk. The research team uses the Arabidopsis root procambium as a model for cambial development. Helariuttas team has greatly contributed to that Arabidopsis root development is widely seen as a key model for plant organogenesis.. During his term as Academy Professor, Helariutta will investigate cytokinin as a regulatory ...

Control of cell division and expansion is crucial for developmental patterning and is likely to be mediated by factors operating at different organisational levels (Irish and Jenik, 2001). Although some mutations causing altered division rates or aberrant cytokinesis affect overall plant morphogenesis (Liu et al., 1997), others do not (Blilou et al., 2002; Cleary and Smith, 1998). However, the increasing number of mutations reported to generate cytokinetic defects that lead to alterations in cell fate (Assaad et al., 1996; Chen and McCormick, 1996; Kessler et al., 2002) further demonstrate the importance of the precise timing and proper execution of cell division in plant organogenesis.. The maize seed is composed of an embryo and a persistent endosperm, and is proving an effective model system for the study of basic mechanisms of plant development. The endosperm is a simple structure that originates as a triploid central cell, the result of the fusion of the diploid central cell nucleus with ...

The uptake and metabolism of exogenous tritium-labelled benzyl adenine was studied during the shoot induction period of petunia leaf explants in tissue culture. Transfer experiments with Petunia `MD1 leaf explants (1 cm2) on MS media with 2.2 uM BA show that 27% and 100% of the leaf explants are committed to shoot induction on days 6 and 10, respectively. To study BA uptake and metabolism, leaf explants were placed on media containing tritium-labled BA for 1, 3, 6 and 10 days. BA was taken up from the media on days 1-6. BA metabolizes were analyzed using HPLC, a UV absorbancc detector and enzymatic techniques. Metabolizes produced include: BA, BAdo, BA 7G, BA 9G, BAdoMP, BAdoDP, BAdoTP and 3 unidentified compounds. BA and BAdo were detected on days 1 and 3 but not during day 6-10, the time of shoot induction. The pool of ribotide metabolites decreased from days 1 to 10, from 26.5% of all metabolites to 1.6%. Glucosylated compounds, BA 7G and BA 9G, increased continuously from 24.9% to 69.8% ...

Description from Flora of China. Aalius Rumphius ex Kuntze; Breyniopsis Beille; Ceratogynum Wight; Diplomorpha Griffith (1854), not Meisner (1841); Synostemon F. Mueller.. Erect shrubs, rarely herbs or climbers, monoecious or dioecious; indumentum of simple or gland-tipped hairs, often absent. Leaves alternate; stipules small, paired, inserted at bilateral base of petiole; leaf blade simple, entire, pinnately veined or rarely obscurely 3-veined from base, petiolate. Flowers smaller, apetalous. Male flowers axillary or cauliflorous, clustered or solitary, rarely in racemelike thyrses or short cymes; pedicels usually bracteolate at base; calyx discoid, cup-shaped, or turbinate, entire or 6-lobed, lobes obscurely biseriate, imbricate, erect, or spreading, margins slightly thick, with a whorl of scalelike adaxial lobes at bases of calyx lobes, rarely absent; petals absent; stamens 3, opposite outer sepals; filaments usually connate into a short cylinder; anthers free, bilocular, thecae 2, extrorse, ...

Description from Flora of China. Aalius Rumphius ex Kuntze; Breyniopsis Beille; Ceratogynum Wight; Diplomorpha Griffith (1854), not Meisner (1841); Synostemon F. Mueller.. Erect shrubs, rarely herbs or climbers, monoecious or dioecious; indumentum of simple or gland-tipped hairs, often absent. Leaves alternate; stipules small, paired, inserted at bilateral base of petiole; leaf blade simple, entire, pinnately veined or rarely obscurely 3-veined from base, petiolate. Flowers smaller, apetalous. Male flowers axillary or cauliflorous, clustered or solitary, rarely in racemelike thyrses or short cymes; pedicels usually bracteolate at base; calyx discoid, cup-shaped, or turbinate, entire or 6-lobed, lobes obscurely biseriate, imbricate, erect, or spreading, margins slightly thick, with a whorl of scalelike adaxial lobes at bases of calyx lobes, rarely absent; petals absent; stamens 3, opposite outer sepals; filaments usually connate into a short cylinder; anthers free, bilocular, thecae 2, extrorse, ...

No habitat entry has yet been made for this entity. Created: 12 January 2018 by Salvador Valenzuela Miranda. Verified by: 12 January 2018 by Salvador Valenzuela Miranda. Accesses: This record has been accessed by users 33 times since it was created.. Verification of data ...

No habitat entry has yet been made for this entity. Created: 12 January 2018 by Salvador Valenzuela Miranda. Verified by: 12 January 2018 by Salvador Valenzuela Miranda. Accesses: This record has been accessed by users 33 times since it was created.. Verification of data ...

E grado ta kore di 1 pa 5. Un mata grado 5 ta nifika ku esaki ta wordu kultiva pa wordu huza den e kategoria (sea komibel, medisinal of material). Matanan den grado 1 i 2 ta mayoria bia wordu huza den skarsedat ...

In the present study petroleum ether and alcoholic extracts of Centratherum anthelminticum (L) Kuntze seed (100 mg and 200 mg/kg p.o.) were evaluated ..

The plants leaves are divided, narrow, terete and about 5 cm long. It was first described by Robert Brown in 1810. In 1891, German botanist Otto Kuntze published Revisio generum plantarum, his response to what he perceived as a lack of method in existing nomenclatural practice. Because Isopogon was based on Isopogon anemonifolius, and that species had already been placed by Richard Salisbury in the segregate genus Atylus in 1807, Kuntze revived the latter genus on the grounds of priority, and made the new combination Atylus formosus for this species. However, Kuntzes revisionary program was not accepted by the majority of botanists. Ultimately, the genus Isopogon was nomenclaturally conserved over Atylus by the International Botanical Congress of 1905. ...

The bulk of folks may not even learn about it. Lilly ICOS, the pharmaceutical alliance, which introduced the blockbuster drug Cialis, declared the drug has arrived at a single billion dollars in around the world gains given that launching in Europe significantly less than two a long time all over again. An unlimited range of grownup males endure from ED as well as the advancement of the market demonstrates that consumers are speaking to their well being treatment firms about ED and on the lookout for overcome options. Not basically has Cialis been able to raise the industry but it really unquestionably has furthermore eaten enormously inside of the present-day current market expose of Viagra from Pfizer, the incredibly initial drug to be produced in this particular individual latest market place and Levitra from Glaxo-Bayer-Schering Plough. In fact Cialis was the following PDE5 inhibitor drug for being accessible in Europe. In accordance to Paul Clark, Chairman and Principal Federal government ...

The bulk of folks may not even learn about it. Lilly ICOS, the pharmaceutical alliance, which introduced the blockbuster drug Cialis, declared the drug has arrived at a single billion dollars in around the world gains given that launching in Europe significantly less than two a long time all over again. An unlimited range of grownup males endure from ED as well as the advancement of the market demonstrates that consumers are speaking to their well being treatment firms about ED and on the lookout for overcome options. Not basically has Cialis been able to raise the industry but it really unquestionably has furthermore eaten enormously inside of the present-day current market expose of Viagra from Pfizer, the incredibly initial drug to be produced in this particular individual latest market place and Levitra from Glaxo-Bayer-Schering Plough. In fact Cialis was the following PDE5 inhibitor drug for being accessible in Europe. In accordance to Paul Clark, Chairman and Principal Federal government ...

Classification for Kingdom Plantae Down to Genus Bothriochloa Kuntze Click on names to expand them, and on P for PLANTS profiles ...

Flower Size 1/2 Found in tropical America, Tropical Africa and from India to the Philippines as a wet region, cool to hot growing terrestrial or lithophyte of the forest understory, except at higher elevations in cloud forest where it can be found on exposed roadbanks, at elevations of 500 to 1800 meters where it will bloom in the summer and fall on a 10 to 15 long inflorescence that has a many flowered, terminal, erect raceme arising with a new pseudobulb growth. This orchid is probably the most widespread orchid in the world being pan-tropical. Synonyms Bletia bicallosa D. Don 1825; Cymbidium bituberculatum Hook. 1824; Cymbidium nervosum Sw. 1799; Dituilis nepalensis Raf. 1836; Empusa paradoxa Lindl. 1824; Epidendrum nervosum (Thunb.) Thunb. 1794; Eulophia bicallosa (D. Don) P.F. Hunt & Summerh. 1966; Leptorchis bicornis (Ridl.) Kuntze 1891; Leptorchis bituberculata (Lindl.) Kuntze 1891; Leptorchis eggersii (Rchb. f.) Kuntze 1891; Leptorchis elata (Lindl.) Kuntze 1891; Leptorchis guineensis ...

Efek pemberian ekstrak teh hijau (Camellia sinesis (L) O. Kuntze) var. Assamica terhadap total lemak tubuh dan profil lipid wanita dewasa overweight dan obesitas

Picture Archives - Album 1515 (Doha - Fuwairit, Qatar, December 18 - 19, 2014) - Photo 17 (Rosette of leaves of Launaea capitata on rocky ridge of Jebel Fuwairit. Northern Qatar, December 19, 2014)

In 1851 the Floricultural Cabinet described a plant seen at Kew Gardens: Large plants, in fine bloom, the flowers of a bright scarlet and rich yellow colours, beautifully spotted inside. The tube is wide, and the front limb fully expanded, which shows the flower fully. These will bloom the entire winter and are very handsome. [FC p.8/1851]. FS pl.IV 4e Liv./1846. MB pl.??/1847.. ...

Achnanthes minutissima Kützing; Achnanthidium lanceolatum f. minutissima (Kützing) Tömösvary 1879; Microneis minutissima (Kützing) Cleve 1895; Cocconeis minutissima (Kützing) Schönfeldt 1907; Microneis minutissima (Kützing) Meister 1912; Achnanthidium microcephalum Kützing 1844; Achnanthes microcephala (Kützing) Grunow 1880; Achnanthes minutissima var. cryptocephala Grunow 1880; Achnanthes minutissima f. curta Grunow 1880; Microneis microcephala (Kützing) Cleve 1895; Microneis minutissima var. cryptocephala (Grunow) Cleve 1895; Achnanthes cryptocephala (Grunow) M.Peragallo 1897; Schizonema microcephalum (Kützing) Kuntze 1898; Cocconeis microcephala (Kützing) Schonfeldt 1907; Microneis microcephala (Kützing) Meister 1912; Achnanthes minutissima var. genuina A.Cleve 1953 ...

Achnanthes minutissima Kützing; Achnanthidium lanceolatum f. minutissima (Kützing) Tömösvary 1879; Microneis minutissima (Kützing) Cleve 1895; Cocconeis minutissima (Kützing) Schönfeldt 1907; Microneis minutissima (Kützing) Meister 1912; Achnanthidium microcephalum Kützing 1844; Achnanthes microcephala (Kützing) Grunow 1880; Achnanthes minutissima var. cryptocephala Grunow 1880; Achnanthes minutissima f. curta Grunow 1880; Microneis microcephala (Kützing) Cleve 1895; Microneis minutissima var. cryptocephala (Grunow) Cleve 1895; Achnanthes cryptocephala (Grunow) M.Peragallo 1897; Schizonema microcephalum (Kützing) Kuntze 1898; Cocconeis microcephala (Kützing) Schonfeldt 1907; Microneis microcephala (Kützing) Meister 1912; Achnanthes minutissima var. genuina A.Cleve 1953 ...

REMO CASPI. Family: Apocynaceae. Taxon: Aspidosperma excelsum Benth.. Synonyms: Macaglia excelsa (Benth.) Kuntze. Common names: avore de carapana, arvore dos mosquitos, canalete, carapanauba, jaroeroe, musara, paddle tree, paddlewood, parihoedoe, porekai, remo caspi, yarula, yaruru, zwart. ...

The Assorted Aussie Acropora Coral offers coral collectors and Acropora aficionados a convenient way to create a beautiful reef aquarium landscape with diverse Acropora species. This thoughtful selection contains 3 different species of high quality Australian Acropora coral frags boasting varying color forms and growth habits for a truly noteworthy presentation. Our packaging crew will hand select these pieces, and we are confident you will be pleased.. The Assorted Aussie Acropora Coral may include the following Acropora corals: Acropora tenuis, Acropora aculeus, Acropora sarmentosa, Acropora cerealis, and Acropora microclados for one incredible price.. The ideal environment for the corals included in the Assorted Aussie Acropora Coral is an established reef aquarium with coral-friendly fish and invertebrates. Provide bright lighting conditions achieved with T-5s, powerful LEDs or the more intense metal halides. Under the right conditions, the growth rate of Acropora corals is much more rapid ...

Chromosome numbers are reported for nine taxa of Launaea from Morocco and Tunisia. For L. angustifolia subsp. angustifolia a chromosome number (2n = 16) is provided for the first time and in L. nudicaulis a hitherto unkown tetraploid cytotype (2n = 36) is reported. The combinations L. angustifolia subsp. arabica and L. mucronata subsp. cassiana are formed as names new to science. ...

Guiry, Michael D. (2015). Phycodrys fimbriata. In: Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=372438 on 2017-12- ...

سابفه و هدف: شاخساره‌های گیاه چای قسمت قابل برداشت (محصول) بوته‌های چای بوده و به‌عنوان عوامل کلیدی تعیین کننده‌ی کیفیت چای در نظر گرفته می‌شوند که حداقل به میزان 70 درصد در ساختار کیفیت نوشابه‌ی چای، موثر هستند. آب و کود نیتروژنی مهم‌ترین نهاده‌های کشاورزی در تولید برگ‌ها و شاخساره‌های چای هستند و در تعیین میزان کیفیت و بازارپسندی آن نقش مهمی بر عهده دارند. کیفیت چای نیز به سطوح نیتروژن، پلی‌فنل‌ها و کافیین اجزای تشکیل دهنده‌ی شاخساره‌های چای به شدت وابسته است. در این پژوهش تاثیر سطوح مختلف کود نیتروژنی و آب آبیاری بر عملکرد و برخی از شاخص‌های کیفی

Syn.: Amellus villosus Pursh, Aster gracilentus Banks ex DC., Chrysopsis villosa (Pursh) Nutt. ex DC., Chrysopsis villosa (Pursh) Nutt. ex Hook., Diplogon falcatum (Pursh) Kuntze, Diplogon villosum (Pursh)...

(Italiano) Come coltivare la nepetella. La nepetella (o nepitella) o mentuccia comune (Clinopodium nepeta (L.) Kuntze, 1891) è una pianta aromatica della famiglia ...

Cantharellus cornucopioides (L.) Fr., moreCraterella cornucopioides (L.) Pers., Craterellus ochrosporus Burt, Dendrosarcus cornucopioides (L.) Kuntze, Helvella cornucopioides (L.) Scop., Merulius cornucopioides (Bolton) J.F. Gmelin, Merulius purpureus With., Octospora cornucopioides (L.) Timm, Pezicula cornucopioides (L.) Paulet, Peziza cornucopioides L., Pleurotus cornucopioides (L.) Gillet, Sterbeeckia cornucopioides (L.) Dumort. ...

We report a new cryopreservation method for highbush blueberry (Vaccinium corymbosum) using small leaf squares-bearing adventitious buds. Leaf explants wer

Induction and emergence of hairy roots. A. rhizogenes strain K599 could induce hairy root formation in 47% excised leaf explants. The time period required for hairy root induction and frequency of transformation varied with respect to the age of explants. Leaf explants obtained from 3 and 4 weeks old in vitro cultures were only the responsive explants (Figure 1) and exhibited 46.6 and 35.0% TF after 25 and 28 days of bacterial infection respectively. Young leaf explants showed higher TF (47%) which decreased with an increase in explants age. A number of previous studies showed that type and age of explant have a great influence on hairy root induction since age of explant is a major factor that alters the physiological properties of the cell (Dupre et al. 2000). A strong correlation between TF and the age of wheat donor plants was observed when two different varieties of wheat were used for transformation with Agrobacterium. The mean TF increased from 0.7% to 5% using immature embryo from old ...

TY - JOUR. T1 - Diversity and genetic differentiation among populations of Indian and Kenyan tea (Camellia sinensis (L.) O. Kuntze) revealed by AFLP markers. AU - Paul, S.. AU - Wachira, F.N.. AU - Powell, W.. AU - Waugh, R.. N1 - Cited By :211 Export Date: 31 March 2019. PY - 1997. Y1 - 1997. U2 - 10.1007/s001220050408. DO - 10.1007/s001220050408. M3 - Article. VL - 94. SP - 255. EP - 263. JO - Theoretical And Applied Genetics. JF - Theoretical And Applied Genetics. SN - 0040-5752. IS - 2. ER - ...

Conclusion and Recommendation: In general the antimicrobial activity of the plant observed here support the tradition therapeutic claim of the society. Further study should be conducted in further evaluating its antimicrobial effectiveness and also purification of the active chemical constituents that could be responsible for its biological activity.. Key words: Antibacterial activity, phytochemical screening, disc diffusion, broth dilution, Dichrocepala integrifolia ...

Definition: Siliceous ooze is a marine sediment composed of the debris of plankton with silica shells, such as diatoms and radiolaria. This ooze is limited to areas with high biological productivity, such as the polar oceans, and upwelling zones near the equator. The least common type of sediment, it covers only 15% of the ocean floor. It accumulates at a slower rate than calcareous ooze: 0.2-1 cm / 1000 yr ...

Classification for Kingdom Plantae Down to Variety Eragrostis ciliaris (L.) R. Br. var. laxa Kuntze [excluded] Click on names to expand them, and on P for PLANTS profiles ...

TY - JOUR. T1 - Flavonoids from Camellia sinensis (L.)O. Kuntze seed ameliorates TNF-α induced insulin resistance in HepG2 cells. AU - Chen, Fu Chih. AU - Shen, Kuo Ping. AU - Ke, Liang Yin. AU - Lin, Hui Li. AU - Wu, Chia Chang. AU - Shaw, Shyh Yu. PY - 2019/5. Y1 - 2019/5. N2 - The aim of this study is to discuss the non-catechin flavonoids (NCF)from Camellia sinensis (L.)O. Kuntze seed improving TNF-α impaired insulin stimulated glucose uptake and insulin signaling. Flavonoids had anti-metabolic syndrome and anti-inflammatory properties. It had widely been known for biological activity of catechins in tea, but very few research reports discussed the biological activity of non-catechin flavonoids in tea seed. We used HepG2 cell to treat with 5 μM insulin or with 5 μM insulin + 30 ng/ml TNF-α. Detecting the glucose concentration of medium, insulin decreased the glucose levels of medium meant that insulin promoted glucose uptake into cells, but TNF-α inhibited the glucose uptake effect of ...

Nitraria schoberi (Ghar-e-Daghin in Persian) from Zygophyllaceae (Nitrariaceae) family is considered as a wonderful exquisite plant in terms of its economical, medicinal, animal feed, significant values and also its unique characteristics of being tolerant to the soil salinity, drought and erosion. On the other hand, this plant is challenging with severe problems such as seed dormancy, plant growth inhibitors and also hard seed coat which lead to retard germination and subsequently to reduce the chance of life and reproduction. The present study was conducted for the first time to cope with its seed germination obstacles and to induce plantlet regeneration in N. schoberi through tissue culture method. Effect of cotyledonary leaf and hypocotyl explants and various concentrations of plant growth regulators were studied on shoot and root induction and further development. Based on the obtained results, culturing seeds after removing its seed coat effectively improved germination rate (80%) within a week.

same citation as:Convolvulaceae Dichondra evolvulacea (L.f.) Britton var. villosa (D.Parodi) Kuntze nomenclatural synonym:Convolvulaceae Dichondra villosa Parodi Id: 79455-2 Version: 1.9 View Record history. View this record in TCS-RDF format. ...

MS medium supplemented with different combinations and concentrations of hormone were studied to obtain a suitable protocol of plantlet regeneration of ginger from calli. Three explants of two varieties of ginger viz., Suruchi and BARI ada-1 were cultured on MS medium supplemented with 0.5 mg/l Dicamba, 0.75 mg/l Dicamba and 1 mg/l 2,4 D. Assessments on callus induction were studied through five quantitative traits such as days required for callus initiation, size of callus, color of callus, nature of callus and percentage of callus induction. Suruchi showed 62.64% callus induction, 63.98% shoot induction and 68.76% root induction. Leaf explant gave best result over shoot tip and root explant. Leaf explant produced 67.07% callus, 67.77% shoot and 66.93% root. MS medium supplemented with 0.5 mg/l Dicamba was the best (70.20%) for callusing, MS + 1.0 mg/l Kn + 1.0 mg/l BAP best (72.03%) for shooting and Ms + 1 mg/l IBA gave best (66.43%) result for rooting over other treatments. The highest ...

Three-week-old leaf explants of in vitro germinated seedlings of Tagetespatula were used to develop a callus induction medium suitable for diesel toxicity eval...

Medicinal plants and their bioactive fractions have significant roles in various disorders. These fractions have been shown to improve the learning behaviors and memories of experimental animals [16]. For determination of disorders of the central nervous system in experimental animals, a passive avoidance task (fear-aggravated test) is used for evaluation of learning and memory. In the present study, on the 5th day, rats were placed in a dark chamber to evaluate their vision and neuronal activity. The results of the present study revealed that the values of STL differed significantly, whereas no change was found in IL values. Similar findings were reported by Ellman et al.[15] in their study on Vaccinium ashei supplementation in mice. Our results suggested that administration of Launaea procumbens significantly improved memory and learning in experimental animals when using passive avoidance tests. Similar results have been reported in other experimental animals [16]. The data of the present ...

Common Name The Reverse Heart-Shaped Cephalantheropsis -in Japan - Tokusa-ran - Kusairo-ebine - In China Huang Lan Flower Size 1 [2.5 cm] Found in Fujian, Guangdong, Hainan and Yunnan provinces of China, Japan, Taiwan, Bangladesh, Laos, Myanmar, Thailand, Vietnam, Hong Kong, Malaysia, the Moluccas and the Philippines in primary, semideciduous, broad-leafed, mixed and coniferous forests at elevations of 1300 to 1450 meters as a small to medium sized, cool growing terrestrial orchid with a stout stem carrying several, plicate, elliptic, acute, gradually narrowing below into the clasping base leaf that blooms in the fall on an axillary, erect, slender, to 14 [35 cm] long, racemose, several to many flowered inflorescence. Synonyms Alismorchis gracilis (Lindl.) Kuntze 1891; Alismorchis tubifera (Hook.f.) Kuntze 1891; *Bletia obcordata Lindl. 1831; Calanthe bursicola Gagnep. 1950; Calanthe gracilis Lindl. 1833; Calanthe ramosii Ames 1912; Calanthe tubifera Hook.f. 1890; Calanthe venusta Schltr. ...

Hansen 536 (Prunus dulcis × Prunus persica) is an important commercial rootstock for peach and almond. However, susceptibility to wet soil and bacterial canker has limited its use primarily to areas with less annual rainfall. Genetic engineering techniques offer an attractive approach to improve effectively the current problems with this cultivar. To develop an efficient shoot regeneration system from leaf explants, 10 culture media containing Murashige and Skoog (MS) or woody plant medium (WPM) supplemented with different plant growth regulators were evaluated, and adventitious shoot regeneration occurred at frequencies ranging from 0% to 36.1%. Optimal regeneration with a frequency of 32.3% to 36.1% occurred with WPM medium containing 8.88 µm 6-benzylamino-purine (BAP) and 0.98 to 3.94 µm indole-3-butyric acid (IBA). The regenerated shoots had a high rooting ability, and 80% of the in vitro shoots tested rooted and survived after being transplanted to substrate directly. Transient ...

Stentors. Light microscope footage of two Stentor sp. ciliate protozoa. Stentor species are filter-feeding freshwater protozoa which can reach lengths up to 2 millimetres, and are among the largest known unicellular organisms. A ring of prominent cilia surrounds the anterior part of the cell to sweep in food and aid in swimming. Some species live symbiotically with certain species of green algae. After being ingested, the algae live on and continue to photosynthesize, while their host absorbs nutrients they produce, and the algae receive protection and feed on the Stentors metabolic wastes. - Stock Video Clip K005/3589