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*  Lilium longiflorum
"Calcium ionophore A 23187 affects localized wall secretion infqu hoeegion of pollen tubes of Lilium longiflorum". Planta. 145 ( ... "Characterization and localization of profilin in pollen grains and tubes ofLilium longiflorum". Cell Motility and the ... including licking pollen that may have brushed onto its coat. Collins, Cynthia (19 April 2014). "Easter Lily Tradition and ...
*  Floral scent
They learn to associate the floral scent of a plant to a reward such as nectar and pollen, and have different behavioral ... "Conditions for the optimal analysis of volatile organic compounds in air with sorbent tube sampling and liquid standard ...
*  Pollination syndrome
... more nectar is offered than pollen. The flowers have simple nectar guides with the nectaries usually hidden in narrow tubes or ... Water-pollinated plants are aquatic and pollen is released into the water. Water currents therefore act as a pollen vector in a ... Their flowers tend to be small and inconspicuous with lots of pollen grains and large, feathery stigmas to catch the pollen. ... Their stigmas may be large and feathery to catch the pollen grains. Insects may visit them to collect pollen; in some cases, ...
*  Pollen tube
... primer Images : Pollen tetrad and Pollen tube Calanthe discolor Lindl. - Flavon's Secret Flower Garden. ... providing the pollen tube with interesting mechanical properties. The pollen tube has an unusual kind of growth; it extends ... The pollen tube: a cellular and molecular perspective. Springer. Gossot, Olivier; Geitmann Anja (2007). "Pollen tube growth: ... Lipids at the surface of the stigma may also stimulate pollen tube growth for compatible pollen. Plants that are self-sterile ...
*  Reproductive isolation
... in pollen-tube growth between interspecific and conspecific pollen led to a lower fertilization rate by interspecific pollen. ... the difference between the two being whether or not a pollen tube is formed. (Typically when pollen encounters a receptive ... However, the growth of the pollen tubes may be detained at some point between the stigma and the ovules, in such a way that ... On the other hand, a reciprocal cross (SI x SC) will not produce offspring, because the pollen tubes will not reach the ovules ...
*  Pollination
Pollen germination has three stages; hydration, activation and pollen tube emergence. The pollen grain is severely dehydrated ... pollen grains). The four resulting cells consist of a large tube cell that forms the pollen tube, a generative cell that will ... The pollen is released from the anther within the flower or the pollen on the anther grows a tube down the style to the ovules ... When a pollen grain adheres to the stigma of a carpel it germinates, developing a pollen tube that grows through the tissues of ...
*  Corn silk
The pollen tube is produced by the single vegetative cell in the pollen grain, which passes its cytoplasm, nucleus and two ... Many races of popcorn, of the everta type, will greatly slow the development of pollen tubes from any pollen that does not ... The pollen tube extends at a rate of over 1 centimeter per hour, requiring only 24 hours to create a foot-long pathway within ... 2007). "How pollen tubes grow". Developmental Biology. 303 (2): 405-420. doi:10.1016/j.ydbio.2006.12.003. CS1 maint: Explicit ...
*  Peter K. Hepler
Miller, D. D., D. A. Callaham, D. J. Gross and P. K. Hepler (1992). "Free Ca2+ gradient in growing pollen tubes of Lilium". ... P. K. Hepler; J. G. Kunkel; C. M. Rounds; L. J. Winship (2012). "Calcium entry into pollen tubes". Trends in Plant Science. 17 ... Lancelle, S. A., M. Cresti and P. K. Hepler (1987). "Ultrastructure of the cytoskeleton in freeze-substituted pollen tubes of ... The Control of Pollen Tube Growth". BioScience. 57 (10): 835-844. doi:10.1641/b571006. Retrieved October 20, 2016. ...
*  Cephalanthera damasonium
Then pollen tubes start growing. This pollination mode enables the White helleborine to grow in deep shade, where the ...
*  Animesh Ray
S.M. Ray; S.S. Park; A. Ray (1997). "Pollen tube guidance by the female gametophyte". Development. The Company of Biologists. ... In June 1997 Animesh Ray suggested that gametophyte is responsible for pollen tube guidance but also mentioned that it might be ...
*  Role of Calmodulins
Similarly, CaM is also essential at the pollen tube apex it's primarily role here involves guidance of the pollen tube growth. ... Ca2+ transporters are essential for pollen tube growth. Hence, a constant Ca2+ gradient is maintained at the apex of pollen ... SRK is involved in the self-incompatibility responses involved in pollen-pistil interactions in Brassica. 4) CaM targets in ... tube for elongation during the process of fertilization. ... Arabidopsis are also involved in pollen development and ...
*  Giovanni Battista Amici
He was the first to observe the pollen tube. He invented the dipleidoscope and also the direct vision prism. The crater Amici ... "Early Pollen Research". IPNI. Amici. Ronchi, Vasco (1970). "Amici, Giovan Battista". Dictionary of Scientific Biography. 1. New ...
*  Brassinosteroid
Is necessary for pollen elongation for pollen tube formation. Acceleration of senescence in dying tissue cultured cells; ... "Effect of brassinolide and other growth regulators on the germination and growth of pollen tubes of "Prunus avium" using a ... pollen. Brassinolide was the first isolated brassinosteroid in 1979, when pollen from Brassica napus was shown to promote stem ... The yield of brassinosteroids from 230 kg of Brassica napus pollen was only 10 mg. Since their discovery, over 70 BR compounds ...
*  Ovule
The pollen tube releases two sperm nuclei into the ovule. In gymnosperms, fertilization occurs within the archegonia produced ... In chalazogamous plants, the pollen tubes enter the ovule through the chalaza instead of the micropyle opening. The nucellus ( ... In angiosperms, only a pollen tube enters the micropyle. During germination, the seedling's radicle emerges through the ... with two synergid cells by its side that are involved in the production of signals that guide the pollen tube. Three antipodal ...
*  Turgor pressure
Pollen tubes are cells which elongate when pollen lands on the stigma, at the carpal tip. These cells grow rather quickly due ... The pollen tube of lilies can have a turgor pressure of 0-21 MPa when growing during this process. In fruits such as Impatiens ... In higher plants, turgor pressure is responsible for apical growth of things such as root tips and pollen tubes. Transport ... An increase of turgor pressure causes expansion of cells and extension of apical cells, pollen tubes, and in other plant ...
*  Lab-on-a-chip
AK Yetisen; L Jiang; J R Cooper; Y Qin; R Palanivelu; Y Zohar (May 2011). "A microsystem-based assay for studying pollen tube ... Lab-on-a-chip devices could be used to characterize pollen tube guidance in Arabidopsis thaliana. Specifically, plant on a chip ... is a miniaturized device in which pollen tissues and ovules could be incubated for plant sciences studies. Biotechnology portal ...
*  Arabidopsis thaliana
AK Yetisen; L Jiang; J R Cooper; Y Qin; R Palanivelu; Y Zohar (May 2011). "A microsystem-based assay for studying pollen tube ... Use of these devices may aid our understanding of pollen tube guidance and the mechanism of sexual reproduction in A. thaliana ... Pollen contamination may explain controversial inheritance". Science. 313 (5795): 1864. doi:10.1126/science.313.5795.1864. PMID ...
*  Microfluidics
"A microsystem-based assay for studying pollen tube guidance in plant reproduction". J. Micromech. Microeng. 25. Chang, H.C., ...
*  Germination
... in a petri dish or test tube). During germination, the tube cell elongates into a pollen tube. In the flower, the pollen tube ... Germination and growth of the pollen tube involve molecular signaling between stigma and pollen. In self-incompatibility in ... ISBN 978-81-224-0065-6. Martin FW (1972). "In Vitro Measurement of Pollen Tube Growth Inhibition". Plant Physiol. 49 (6): 924- ... The most common are germ tubes which grow and develop into hyphae. Another type of cell is a conidial anastomosis tube (CAT); ...
*  FERONIA
This furthered expression of synergid- specific genes and helped with extension of the pollen tubes. Feronia(FER) was named ... Initially being discovered from a pollen tube reception mutant, feronia (FER) was found to be necessary in cell growth and ... there were continued failures in the interaction of the synergid and the pollen tubes that caused infertility. The feronia (FER ... "The Arabidopsis mutant feronia disrupts the female gametophytic control of pollen tube reception". Development. 130 (10): 2149- ...
*  Stamen
After arriving, the pollen grain (an immature microgametophyte) typically completes its development. It may grow a pollen tube ... Each microspore then divides mitotically to form an immature microgametophyte called a pollen grain. The pollen is eventually ... A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The stamens in a flower are ... Pollen of angiosperms must be transported to the stigma, the receptive surface of the carpel, of a compatible flower, for ...
*  Tip growth
... root hairs and pollen tubes). Tip growth is a process that has many similarities in diverse walled cells such as pollen tubes, ... So, in effect, a fungal hypha is a continuously moving mass of protoplasm in a continuously extending tube. This unique mode of ...
*  Electrotropism
For instance, the pollen tube has an unusual kind of growth; it extends exclusively at its apex. Pollen tubes, as most ... The pollen tube: a cellular and molecular perspective. Springer. Gossot, Olivier; Geitmann (2007). "Pollen tube growth: coping ... and extracellular electrical signaling in pollen tubes, the understanding of how pollen tubes react to electric fields and how ... Pollen tubes, for instance, align their polar growth with respect to an exogenous electric field. It has been observed that ...
*  Pollen
... pollen germinates in the pollen chamber, located beneath the micropyle, underneath the integuments of the ovule. A pollen tube ... European Pollen Database Evolution of sex Microsporangia Pollen calendar Pollen count Pollen source Polyphenol antioxidant ... If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ... Inaperaturate pollen grains often have thin walls, which facilitates pollen tube germination at any position. Terms such as ...
*  Montrichardia arborescens
Further studies are needed to clarify how the pollen wall and pollen tube are formed. The representative molecular barcode of ... their findings indicated that there is rapid pollen tube formation. The ultra structure of the pollen protoplast was ... In a study done by M. Weber and H. Halbritter to examine M. arborescens pollen, ... Weber, M; H Halbritter (January 2007). "Exploding pollen in Montrichardia arborescens (Araceae)". Plant Systematics and ...
*  Queen Bee (comics)
Utilizing a Boom Tube, technology controlled by Barda, they teleport the Queen and her army back to Korll. Later, Zazzala and ... She attempts to brainwash Green Lantern and Steel to serve her using 'hypno-pollen', but both heroes are able to fight it off; ... "pollen" powder. She and her drones are unable to perceive the color red. She is a capable enough combatant to fight Big Barda ... Although Steel still pretended that the pollen had affected him in order to wait for the right moment to figure out what he ...
*  Fabaceae
The pollen tube growth is similar to the infection thread development in that infection threads grow in a polar manner that is ... The main donors to the pathway were the genes associated with the arbuscular mycorrhiza symbiosis genes, the pollen tube ... "From pollen tubes to infection threads: Recruitment of Medicago floral pectic genes for symbiosis". The Plant Journal. 39 (4): ... similar to a pollen tubes polar growth towards the ovules. Both pathways include the same type of enzymes, pectin-degrading ...