Results 331 to 340 of about 298,868 (346)
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American Journal of Botany, 1990
Using pairs of pollen donors, I analyzed the growth of pollen tubes growing in different channels of the same style in Erythronium grandiflorum. After 24 hr the length of pollen tubes of randomly selected pollen donors was affected by the presence of other donors.
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Using pairs of pollen donors, I analyzed the growth of pollen tubes growing in different channels of the same style in Erythronium grandiflorum. After 24 hr the length of pollen tubes of randomly selected pollen donors was affected by the presence of other donors.
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The Utilization of Pollen and Pollen Substitutes by the Honeybee
Journal of Economic Entomology, 1926Pollen―a substance produced by flowers of plants and collected by bees―is the chief source of protein food of these insects. A lack of pollen causes a cessation or a slackening of brood-rearing, while pollen coming to the hive acts as a stimulus to brood-rearing. When there is a plentiful supply of pollen in the hive and other conditions are favorable,
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The Cytoskeleton of Pollen Grains and Pollen Tubes
1992The cytoskeleton is assumed to be involved in many internal functions of the eukaryotic cell, e.g. organelle movement, mitotic and meiotic division, cell morphogenesis and cell growth (Dustin, 1984; Bershadsky and Vasiliev, 1988). Examination of a broad variaty of mono- and dicotyledones has revealed the presence of microtubules and/or actin filaments ...
Y. Q. Li, E. S. Pierson
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Pollen magnetofection for genetic modification with magnetic nanoparticles as gene carriers
Nature Plants, 2017Xiang Zhao+13 more
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Tip-localized receptors control pollen tube growth and LURE sensing in Arabidopsis
Nature, 2016Hidenori Takeuchi, T. Higashiyama
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Isolated pollen cultures and pollen dimorphism
Naturwissenschaften, 1980E. Heberle-Bors, J. Reinert
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