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POLLEN GERMINATION AND TUBE GROWTH
Annual Review of Plant Biology, 1997▪ Abstract Many aspects of Angiosperm pollen germination and tube growth are discussed including mechanisms of dehydration and rehydration, in vitro germination, pollen coat compounds, the dynamic involvement of cytoskeletal elements (actin, microtubules), calcium ion fluxes, extracellular matrix elements (stylar arabinogalactan proteins), and control
Peter K Hepler
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Protoplasma, 2001
Actin microfilaments (MFs) are essential for the growth of the pollen tube. Although it is well known that MFs, together with myosin, deliver the vesicles required for cell elongation, it is becoming evident that the polymerization of new actin MFs, in a process that is independent of actomyosin-dependent vesicle translocation, is also necessary for ...
L, Vidali, P K, Hepler
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Actin microfilaments (MFs) are essential for the growth of the pollen tube. Although it is well known that MFs, together with myosin, deliver the vesicles required for cell elongation, it is becoming evident that the polymerization of new actin MFs, in a process that is independent of actomyosin-dependent vesicle translocation, is also necessary for ...
L, Vidali, P K, Hepler
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Pollen mitosis and pollen tube growth inhibition by SO2 in cultured pollen tubes of Tradescantia
Environmental Research, 1976Abstract Mature pollen of Tradescantia paludosa Anders. Sax clone-3 was collected from greenhouse grown plants and desiccated in the dark for 4–5 hours. The pollen was sown on microslides coated with lactose agar medium (supplemented with 0.02% colchicine).
T H, Ma, S H, Khan
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Cell mechanics of pollen tube growth
Current Opinion in Genetics & Development, 2018The pollen tube features particular traits that can only be understood when integrating cell biological with cell mechanical concepts. Firstly, regular temporal variations in the growth rate are governed by a feedback mechanism thought to involve mechanosensitive ion channels. Secondly, the tube uses invasive growth to penetrate the flower tissues with
Christine, Cameron, Anja, Geitmann
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Pollen Germination and Pollen Tube Growth
2001Pollen, the male gametophyte of higher plants, is a biological system playing a central role in sexual plant reproduction (Cresti et al., 1992). The understanding of the mechanisms controlling the various aspects of pollen tube development has a direct relevance to biotechnological applications since it represents a starting point to modify crop ...
A. Moscatelli, M. Cresti
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Pollen Germination and Pollen Tube Growth in Vitro
1992Pollen germination and pollen tube growth are prerequisites for fertilization and seed development. Because of the involvement of the pistillate tissue in nature, physiologic and biochemical investigations on pollen germination and pollen tube growth in vivo are rather difficult. In vitro germination techniques have therefore been used extensively on a
K. R. Shivanna, N. S. Rangaswamy
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Pollen Germination and Pollen-Tube Growth
1987Publisher Summary Pollen germination and pollen-tube growth events when viewed either in culture or in the style are considered as biochemically, physiologically, and structurally complex. The various processes involved are each independent in some measure, but still all are interactive—namely, the successful attainment of the delivery of two male ...
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Pollen Tube Growth in vivo as a Measure of Pollen Viability
Science, 1962Observation by fluorescence of tomato pollen tubes in fixed styles clearly showed that all pollen samples grew regardless of age and fruit or seed setting potential. Methods commonly used to evaluate pollen viability, such as staining and germination, may predict growth in the style but do not always predict seed setting ability.
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Pollen tube growth in macadamia
Scientia Horticulturae, 1983Abstract Pollen tube growth in macadamia was studied by fluorescence microscopy. The cultivars ‘Kakea’, ‘Keauhou’, ‘Hinde’ and ‘Renown’ showed some self-incompatibility, with pollen tube growth arrested in the style. Inhibited tubes had swollen tips and appeared to discharge their contents through a sub-terminal pore.
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Pollen Germination and Tube Growth
2010Abstract Seeds and grains are staple food supply around the world and their production is the result of successful double fertilization of female gametophytes by male gametophytes. In flowering plants, the highly reduced haploid male gametophyte (pollen grain) plays a critical role in fertilization and crop production through the generation of a ...
Huei-Jing Wang +2 more
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