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Lipids are required for directional pollen-tube growth
Nature, 1998Successful pollination and fertilization are absolute requirements for sexual reproduction in higher plants. Pollen hydration, germination and penetration of the stigma by pollen tubes are influenced by the exudate on wet stigmas and by the pollen coat in species with dry stigmas.
Wolters-Arts, M. +2 more
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Pollen Germination and Tube Growth
2009In higher plants, the sexual organs, e.g. anther and pistil, are separated spatially either within a flower in hermaphrodite plants or in different flowers as in monoecious plants. Successful fertilization requires temporally and spatially coordinated development of male and female organs and gametophytes.
D.-Q. Shi, W.-C. Yang
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Calcium Control of Pollen Tube Tip Growth
The Biological Bulletin, 1989The role of calcium in pollen tube tip growth is reviewed. Calcium ions are essential for growth, but are inhibitory at high concentrations (above c. 10-2 M). Calcium intake is limited to the growing tip, and the inward flux of calcium appears to establish an ionic current within the surrounding medium. Cellular transport of calcium is reviewed against
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Arabidopsis Sar1b is critical for pollen tube growth
Plant Molecular BiologyPollen tube growth is an essential step leading to reproductive success in flowering plants, in which vesicular trafficking plays a key role. Vesicular trafficking from endoplasmic reticulum to the Golgi apparatus is mediated by the coat protein complex II (COPII). A key component of COPII is small GTPase Sar1.
Xin Liang +4 more
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Germination of Lily Pollen: Respiration and Tube Growth
Science, 1965Germinating pollen of Lilium longiflorum (cv. Ace) briefly exhibited a high rate of respiration before pollen tubes began to grow. A second period of high respiration occurred while tubes were growing. Between these periods respiration proceeded at a lower rate.
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Studies on the physiology of pollen and pollen tube growth
Acta Histochemica, 1976Manju Mehan, C.P. Malik
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