The present day distribution of members of the family Portulacaceae shows that whilst some genera such as Portulaca L., and to some extent Montia L. and Talinum Adanson are cosmopolitan in distribution, others such as Ceraria Pearson and Stephens, Lyallia Hooker fil., Portulacaria Jacquin, Silvaea Philippi and Talinella Baillon with more than six species at the most are endemic to Africa, Australia, Eurasia and South America respectively. This pattern of distribution shows that members of the family Portulacaceae could have originated in Gondwanaland and migrated to new niches by long range dispersal after the breakup of Gondwanaland by continental drift ...
Miners lettuce flowers (Claytonia perfoliata). This edible plant is native to North America and was introduced to Europe in the 18th Century, where it has become invasive in some areas. It is edible, and was an important source of vitamin C for the California goldrush miners. Photographed in the USA. - Stock Image B640/1451
This is a slightly succulent herb introduced from South America, now accepted and widely cultivated throughout the tropics. The leaves and stems are used chopped in salads, they have a slightly sour taste, and a bitter, lingering aftertaste. The leaves also have a relatively high content of oxalic acid (1-2 percent) suggesting that they shouldnt be eaten in excess. Upon cooking lightly any bitterness is absent.. The plant is easily propagated from seeds or cuttings. Left in the right environment the plant will spread itself, although I have never seen it reach invasive proportions. If you know what youre looking for this is a plant you will find growing out walls, cracks, potholes, vacant lots, throughout the city, along with purslane, a close relative. The edible leaves are rich in Vitamins A and C as well as iron and calcium. This species is grown in west Africa, south and south east Asia, warmer areas of north america and throughout central and south America. It is reported to be one of ...
The potential for Crassulacean acid metabolism (CAM) was investigated in the sandstone outcrop succulent Talinum calycinum in central Kansas. Field studies revealed CAM-Iike diurnal acid fluctuations in these plants. These fluctuations persisted under all moisture and temperature regimes in the laboratory. Despite this CAM-Iike acid metabolism, simultaneous gravimetric determinations of day- and nighttime transpiration rates indicated the presence of a d gas exchange pattern. Subsequent analyses of diurnal CO; and H2O exchange patterns under wellwatered conditions and after 3, 5, and 7 days of drought confirmed these findings, though low rates of nocturnal CO, uptake were observed on the fifth night after continuous drought. Finally, the 6 I 3 C / C value of this succulent, - 27.8%c, emphasizes the insignificance of any nocturnal CO.. uptake in the lifelong accumulation of carbon in this species. Thus, it is proposed that T. calycinum is a ( \ plant with some C AM characteristics, including the ...
Define genus Talinum. genus Talinum synonyms, genus Talinum pronunciation, genus Talinum translation, English dictionary definition of genus Talinum. Noun 1. genus Talinum - genus of mainly American more-or-less succulent herbs Talinum caryophylloid dicot genus - genus of relatively early dicotyledonous...
If you live where spring beauty, specifically Claytonia virginica, is native, then you may have noticed great variations in flower color. We all know the influence pollinators can have on flower shape and color but how do we explain populations with such a spectrum?. Like me you might be thinking that it is related to its growing conditions. Well, a research paper by Frank M. Frey out of Indiana University would suggest otherwise. He chalks it all up to opposing natural selection from herbivores and pathogens.. Say what now? In a 2 year study, Frey has made some amazing discoveries. First, he made sure that Claytonia flower color is not a result of soil pH or anything like that by growing a ton of them in different conditions. He found that flower color is indeed genetic and is controlled by a couple different compounds. Crimson coloring comes from a compound called cyanidin and white colors comes from two flavonols, guercetin and kaempferol. Frey then used spectrometry to analyze flower ...
Discover Lifes page about the biology, natural history, ecology, identification and distribution of Claytonia sibirica, Siberian Miners-lettuce image
Bitterroot, (Lewisia rediviva), ornamental succulent plant of the purslane family (Portulacaceae), native to western North America and cultivated in rock gardens. The main stem and root merge into a tuberous structure. The leaves are barely 2.5 cm (1 inch) long, and the flowering stalk with pink or
Flower bisexual, radial; sepals generally 2( 8), free or fused at base; petals 3 18, free or ± fused; stamens 1 many, free or inserted on corolla; ovary superior or partly inferior, chamber 1, placenta free-central or basal; styles 2 8, generally fused at ...
Quantities of heart-shaped leaf pairs, each "wrapped" around a white-flowered stem. Hardiest of the winter salad greens, can tolerate moderate frost and ...
Dormant bulbs ship summer (July-Aug); they will emerge the following spring.   Spring Beauty is a small woodland plant flowering in mid to late spring from a small corm. The flower color is pale pink from a distance but a close look reveals five white petals striped with pink.
This image has a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 (CC BY-NC-ND 3.0) license. If you have questions, contact Dana York amoenus1[AT]netscape.net ...
The delta tree, and its close relative the unidelta tree, both have most unusual leaves that resemble from a distance the 16th century triangular shaped helmet worn by Spanish infantry. Up close, however, the leaves resemble the body of a ray, a cartilaginous marine fish found on earth. Like the ray, delta tree leaves are highly poisonous, with toxin-containing glands on their undersides. Humans on Pandora quickly learn not to rest underneath one of these trees within the range of falling leaves. (Read more) ...
Classification for Kingdom Plantae Down to Species Claytonia tuberosa Pall. ex Schult. Click on names to expand them, and on P for PLANTS profiles ...
Biological Investigation; Introductory Biology for Majors (171, 172, 173); Summer field course (Geology/Biology); Molecular Ecology. Research Interests: I am deeply curious about patterns and processes that shape organismal diversity. I am interested in the evolution of morphological diversity in plants (e.g., plant architecture), historical biogeography and aspects of evolutionary ecology, such as habitat preferences, pollinator-mediated hybridization and introgression. My approaches have included developmental and comparative morphology, molecular systematics, population genetics and field pollination biology. My primary study system has been the small tribe Montieae (Portulacaceae), but additional systems have included Loasaceae and more recently Asclepias (Apocynaceae). With my research, I aim to synthesize evidence in a phylogenetic framework from diverse fields to understand plant species diversity.. Research opportunities for students are the central focus of my research agenda. I frame ...
APG Dicots:There are many significant changes in the dicots and we only highlight some of the most striking and directly useful to gardeners.1. The Old Ones now include the Proteales such that these Australians and South African plants are included in the longterm stable gene pool of Gaian ecosystems.2. The Core Eudicots is an enlarged Caryophyllales, now including several disparate groups including the Santalales (mistletoes), the Vitaceae (grapes) and the Saxifragales, split off from the Rosales and bringing the Crassulaceae closer to the succulents of the Mesembryanthemaceae (iceplants), Basellaceae and Portulacaceae. Buckwheats and Limoniums (statice) are also in this group.3. The Asterids, Euasterids 1 and 2 make up the Asterid Clade. Asterids have seen an expansion of the Ericales to include many groups previously dispersed in other orders while retaining the Cornales.Hydrangeas are split from the Dipsacales now in Euasterids 2.4. Eurosids 1 becomes a major group is this new layout. The ...
While the importance of floral odours for pollinator attraction relative to visual cues is increasingly appreciated, how they structure community‐level plant-pollinator interactions is poorly understood. Elucidating the functional roles of flowering plant species with respect to their floral volatile organic compounds (VOCs) and how those roles vary over the growing season is an initial step towards understanding the contribution of floral VOCs to plant-pollinator interaction structure. ...
My experience of the flora of Lassen County, California, by Orrin C. Winton. Below: Viola beckwithii Torrey & A. Gray (Great Basin Violet). Please note, plant names (nomenclature) are in accordance with The Jepson Manual, 2nd Edition (2012) (TJM2 ...
Our native plant of the month is Claytonia perfoliate, commonly known as miners lettuce. It is an annual herb in the Montiaceae family that is native to California, but also found outside of the state. It typically grows throughout the winter and spring months across California in many diverse plant communities.. Miners lettuce forms rosettes as it grows and reaches a maximum height of 40 centimeters. Small, white to pink flowers with five petals will appear on miners lettuce starting in February. Seeds ripen around April and May. Mature miners lettuce will have erect stems branching from the center, containing many seedpods.. ...
Welcome to the famous Daves Garden website. Join our friendly community that shares tips and ideas for gardens, along with seeds and plants.
I am a visiting PhD student from the University of Campinas (Unicamp), Brazil. My PhD project, entitled Species and chromosomes evolution in Maxillariinae (Orchidaceae), has as general goal a better understanding of the evolution and diversification of species in the subtribe Maxillariinae (Orchidaceae). Cytogenetic phenomena and important biotic and abiotic factors in the diversification process will be characterized. We seek to investigate relation between the ploidy level and genome size of Maxillariinae species to its distribution pattern and to climatic and environmental variables associated with this distribution, as well as lifestyle and habit. Interests: Plant evolution, cytogenetics, cytotaxonomy, cytogeography, ecological modelling ...
When I was an undergraduate, my plant physiology professor required students to write a term paper for his class. Since I found the subject terribly uninteresting, I asked my professor if he could recommend a topic that had something to do with evolution or origins, a topic in which I was very interested. My professor immediately recommended that I write about the origin of C4 photosynthesis. I knew at the time that there are several types of photosynthesis. Flowering plants have at least three main categories, called C3, C4 and CAM. In C3 photosynthesis, the plant takes carbon dioxide (CO2) from the atmosphere and turns it directly into sugar. C4 and CAM plants turn CO2 into organic acids and temporarily store them. In C4 plants, the acids are transported to a special region of the leaf called the bundle sheath cells (BSCs) where they are converted into sugar. In CAM plants, the acids are generated at night when the temperature is lower and converted to sugars during the day. C4 and CAM plants ...
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Within core Caryophyllales, Physena (Physenaceae) is sister to Asteropeia, and this pair is sister to all other core Caryophyllales. Asteropeia and Physena, with five and two species, respectively, all of which are restricted to Madagascar, have been difficult to place taxonomically. Within the remaining core Caryophyllales, three major clades are well supported. The first comprises Caryophyllaceae (86 genera, 2,200 species; mostly with a temperate distribution), Achatocarpaceae (3 genera, 7 species; western North America to South America), and Amaranthaceae (including Chenopodiaceae; 174 genera, 2,050 species; warm temperate and subtropical regions) form a clade, with the last two as sisters. A second clade within core Caryophyllales consists of Basellaceae (4 genera, 20 species; pantropical), Didiereaceae (4 genera, 11 species; Madagascar), Portulacaceae (32 genera, 385 species; cosmopolitan), Cactaceae (100 genera, 1,500 species, mostly New World deserts), and Halophytaceae (monospecific; ...
The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria.
A coordinated supply of the whole plant with sulfur (S) and nitrogen (N) requires mechanisms to regulate not only uptake and assimilation but also long-distance transport of both nutrients in the phlo
Homoisoflavonoids (3-benzylidenechroman-4-ones) are a type of phenolic compounds occurring naturally in plants. Chemically, they have the general structure of a 16-carbon skeleton, which consists of two phenyl rings (A and B) and heterocyclic ring (C). Homoisoflavones can be synthetized from 2-hydroxydihydrochalcones. Homoisoflavanones can be synthetized from 3,5-methoxy phenols via chroman-4-one in three steps or from phloroglucinol. Conversion Homoisoflavanes can be obtained from the conversion of homoisoflavonoids. The homoisoflavonoids portulacanones A, B, C and D can be found in Portulaca oleracea (common purslane, Caryophyllales, Portulacaceae). The 3,4-dihydroxyhomoisoflavans sappanol, episappanol, 3-deoxysappanol, 3-O-methylsappanol and 3-O-methylepisappanol can be found in Caesalpinia sappan. The homoisoflavones scillavones A and B can be isolated from the bulbs of Scilla scilloides (Barnardia japonica). Homoisoflavanones (3-Benzyl-4-chromanones) can be found in various plants, ...
Background/Question/Methods. The worldwide decline in pollinators highlights the importance of understanding how factors associated with climate change may affect plant-pollinator interactions. Components of climate change have the potential to strongly influence plant traits important for attracting pollinators, including floral volatile organic compounds (VOCs). Because plant VOCs are information-rich signals that are highly responsive to the environment, studying floral VOCs and plant-pollinator interactions in the context of climate change could enhance our ability to form a more predictive understanding of how plant-pollinator interactions will change. We examined how drought and leaf herbivory-key components of climate change-affected floral display, floral volatiles, and the visitation rates and community composition of pollinators to four forb species in Montana (Campanula rotundifolia, Heterotheca villosa, Phacelia hastata, and Potentilla recta). Floral VOCs were collected and analyzed ...
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ABSTRACT Human food chain toxicity, soil fertility and agricultural output have been shown to be influenced by application of various types of fertilizers. This research studied the influence of multiple fertilizer application on soil quality and plant heavy metal accumulation, proximate and phytochemical compositions. The different fertilizer samples used were NlSPlSKlS (CFI), N20PIOKIO (CF2), N27P13PI3 (CF3), pig manure (AMI) and chicken manure (AM2). Plant species used were Telfairia occidental is and Talinum triangulare. The experiment had four treatments and each treatment had 0.0, 2.0 and 4.0glkg soil. The seeds of the vegetables were planted and allowed to grow for a period of 12 weeks. The first sets of the experimental pots were left for a latent period of 12 weeks after the first harvest for second fertilizer application. The heavy metal composition of the different fertilizers and control soil as well as the plant species were studied using Atomic Absorption Spectrophotometry (AAS). ...
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Additional shade plants, some rhizomatous, worth consideration: Asarum sp. Claytonia virginica Codonopsis sp. Convallaria majalis Hepatica nobilis Impatiens flanaganae Impatiens tinctoria Paris sp. Prosartes smithii Sauromatum venosum Uvularia grandiflora Nathan ...
The ecosystem service pollination is under threat due to declining populations of pollinators. In this project we will study and how climate change might affect plant-pollinator interactions. We will have a broad focus, including entomophilous crops (frui ts and berries), managed pollinators (honeybees), wild pollinators and wild plants and address questions related to how these four constituents of the pollination system affect each other. We will identify important pollinators to focal crops in Norway a nd the home countries of our international partners (Greece, Argentina and Australia) and how their activity patterns vary with temperature. To better understand how the pollinator community is depending on wild floral resources, in addition to our focal crops, we will also study plant-pollinator interactions in the surrounding vegetation. Finally we will assess the importance of honeybees as pollinators to our focal crops and the surrounding floral community. Our goal is to 1) better ...
Ti Calytrix purpurea ket ti sebbangan ti mula iti pamilia ti mirtus iti Myrtaceae nga endemiko iti Akinlaud nga Australia.[1] Ti dumalapdap a bassit a mula ket kadawyan nga agtubo iti katayag iti 0.3 aginggana iti 0.6 metro (1.0 iti 2.0 ft). Kadawyan daytoy nga agsabong iti pagbaetan ti Septiembre ken Disiembre ken agpataud kadagiti purpura a sukog bituen a sabong.[1] Mabirukan daytoy kadagiti tanap ti darat ken kadagiti karuburoban ti darat iti maysa a lugar iti igid ti laud a pantar iti rehion ti Mid West iti Akinlaud nga Australia nga idiay ket agtubo kadagiti nadarat a daga kadagiti laterito. Immuna a pormal a naipalawag ti sebbangan a kas Lhotzkya purpurea babaen ni botaniko Ferdinand von Mueller idi 1859 iti obra iti Fragmenta Phytographiae Australiae. Daytoy ket naidasig manen iti henero ti Calytrix babaenni Lyndley Craven idi 1987 iti artikulo ti A taxonomic revision of Calytrix Labill. (Myrtaceae) iti warnakan ti Brunonia.[2] ...
Of the parameters examined in this paper, the degree of specialization (i.e. pollination niche partitioning) of plant-pollinator interactions proved to be critical for plant coexistence. Given the importance of the level of partitioning of non-mutualist resources for species coexistence (limiting similarity, e.g. [21]), this result is not unexpected. Apart from having a considerable impact on the invasion threshold by itself, the models specialization parameter influences the strength of the effects of other factors such as pollen carryover and the two parameters affecting search costs. Its direct positive impact on plant coexistence can be explained as follows.. When the pollinator A1 enters the system together with the rare plant P1, it initially profits from the fact that its density is far below the carrying capacity set by the limited availability of nesting sites. Hence, this rare pollinators population is able to grow, while the more abundant pollinators population size (A2) is kept ...
perfoliate bellwort Uvularia perfoliata Colchicaceae Cousin to the tiny dancer I posted about last month, perfoliate bellwort grows in the same conditions and much of the same parts of the country. Its endangered in Indiana and New Hampshire. There isnt much more to say about it, other than I found this fantastic stand in…
The platform for pet owners and breeders that contains all the important information at a glance. LABOKLIN has many years of experience with the implementation and development of genetic tests, particularly in the areas of genetic disorders, colour analysis, DNA profiles, ancestry and sex determination in birds. Our high quality standard is characterised particularly by the fact that all the results of our genetic studies are controlled in a second independent test run before they are shipped. ...
0000169316 00000 n Examples of CAM Plants. VALIDITY AND RELIABILITY: Both the CAM and the CAM-ICU have demonstrated sensitivity of 94-100%, specificity of 89-95% and high inter-rater reliability (Wei, Fearing, Eliezer, Sternberg, & Inouye, 2008). PYK2 CaM PLC DAG PKC RAP1 DAPK MLCK FAK Stathmin PLA2 RSK elF4B rpS6 GSK3 LKB1 Bad eEF2K IKBα MKP-1 Pac-1 ERK1/2 MKP-4 B23/huH3 Ets c-Jun Fos Elk HIF1 STAT3 CREB PI3K RTKS h f r s Shc P P P P P P PP PP P P P P P P P P P P P P P P P P Kinase Phosphatase Transcription factor Ligand Key MAPK-ERK pathway To find out more, please visit … Lesson 15 of 20 • 35 upvotes • 8:54 mins. 0000117627 00000 n The specific photosynthesis method (or pathway) used by each plant class is a variation of a set of chemical reactions called the Calvin Cycle.These reactions impact the … FC? Relational database? 0000509293 00000 n 0000003891 00000 n 0000001708 00000 n Here, we report that the EGF-like domain I within the extracellular domain of EpCAM (EpEX) binds ...
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Insect pollination played an important role in the evolution of angiosperms. Little is known, however, about ancient pollination insects and their niche diversity during the pre-angiosperm period due to the rarity of fossil evidence of plant-pollinator interactions.. Recently, a research group led by Prof. WANG Bo from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences (NIGPAS) has provided new insight into the niche diversity, chemical communication, and defense mechanisms of Mesozoic pollinating insects. Its findings were published in Nature Communications on September 17.. One of the most intensely investigated examples of pollination niches is the morphological match between insect proboscis and floral tube length, which Darwin described in a publication in 1877. Kalligrammatid lacewings are among the largest and most conspicuous Mesozoic insects with siphoning mouthparts.. The NIGPAS researchers reported 27 well-preserved kalligrammatids from late ...