Results 31 to 40 of about 57,214 (301)
Rice, 2018 Background Pollen tube formation and growth are crucial steps that lead to seed production. Despite the importance of pollen tube growth, the molecular mechanisms implicated in its spatial and temporal control are not fully known. In this study, we found
Fan Zhang +10 more
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BMC Plant Biology, 2019 Background During sexual reproduction, pollen grains land on the stigma, rehydrate and produce pollen tubes that grow through the female transmitting-tract tissue allowing the delivery of the two sperm cells to the ovule and the production of healthy ...
Ferdousse Laggoun +8 more
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Nitric oxide is involved in growth regulation and re-orientation of pollen tubes [PDF]
, 2004 Nitric oxide (NO) controls diverse functions in many cells and organs of animals. It is also produced in plants and has a variety of effects, but little is known about their underlying mechanisms. In the present study, we have discovered a role for NO in
Feijo, JA, Porterfield, DM, Prado, AM
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A Rho family GTPase controls actin dynamics and tip growth via two counteracting downstream pathways in pollen tubes. [PDF]
, 2005 Tip growth in neuronal cells, plant cells, and fungal hyphae is known to require tip-localized Rho GTPase, calcium, and filamentous actin (F-actin), but how they interact with each other is unclear.
Dowd, Peter +6 more
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Ovary Signals for Pollen Tube Guidance in Chalazogamous Mangifera indica L.
Frontiers in Plant Science, 2021 Most flowering plants show porogamy in which the pollen tubes reach the egg apparatus through the micropyle. However, several species show chalazogamy, an unusual pollen tube growth, in which the pollen tubes reach the embryo sac through the chalaza ...
Jorge Lora +5 more
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AtRabD2b and AtRabD2c have overlapping functions in pollen development and pollen tube growth [PDF]
, 2011 Background Rab GTPases are important regulators of endomembrane trafficking, regulating exocytosis, endocytosis and membrane recycling. Many Rab-like proteins exist in plants, but only a subset have been functionally characterized. Results Here we report
Wurtele Eve +3 more
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Effects of temperature on pollen viability and in vivo pollen tube growth in Citrus sinensis
Journal of Applied Botany and Food Quality, 2022 Temperature is the major factor in global warming and strongly influences the success of plant sexual reproduction. Therefore, there isan urgent need to assess the vulnerability of species for breeding and planning effective actions.
Senay Karabiyik
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Phosphatidic acid counteracts S-RNase signaling in pollen by stabilizing the actin cytoskeleton [PDF]
, 2018 S-RNase is the female determinant of self-incompatibility (SI) in pear (Pyrus bretschneideri). After translocation to the pollen tube, S-RNase degrades rRNA and induces pollen tube death in an S-haplotype-specific manner. In this study, we found that the
Chen, Jianqing +7 more
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Signaling and the Modulation of Pollen Tube Growth [PDF]
The Plant Cell, 1999 Pollination in flowering plants begins when pollen lands on a stigma. The process continues as the pollen germinates and grows through intercellular spaces in the pistil, and it culminates when the pollen reaches the ovary and fertilization occurs.
openaire +2 more sources
The effect of temperature on pollen germination and pollen tube growth of sour cherry cultivars [PDF]
Journal of Agricultural Sciences (Belgrade), 2014 The study was carried out to determine the effect of three different temperatures (5, 15 and 25°C) on in vitro pollen germination and pollen tube growth of five sour cherry cultivars: ‘Heimanns Konservenweichsel’, ‘Kelleriis 14’, ‘Oblačinska ...
Milatović Dragan P., Nikolić Dragan T.
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