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
core +1 more source
The Plant Cell, 2019 A sugar transporter protein, STP13a, mediates the uptake of both hexose and Suc for in vitro pollen tube growth in apple, with its expression regulated by sorbitol via a MYB transcription factor.
Chunlong Li +5 more
semanticscholar +1 more source
The Arabidopsis mutant feronia disrupts the female gametophytic control of pollen tube reception [PDF]
, 2003 Reproduction in angiosperms depends on communication processes of the male gametophyte (pollen) with the female floral organs (pistil, transmitting tissue) and the female gametophyte (embryo sac).
Federer, M. +3 more
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Fast Pollen Tube Growth in Conospermum Species [PDF]
Annals of Botany, 2004 An unusual form of pollen tube growth was observed for several Conospermum species (family Proteaceae). The rate of pollen tube growth, the number of tubes to emerge and the ultrastructure of these tubes are given here.Pollen was germinated in vitro in different sucrose concentrations and in the presence of calcium channel blockers, and tube emergence ...
Stone, L.M. +3 more
openaire +2 more sources
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
doaj +1 more source
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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Pollen-specific pectin methylesterase involved in pollen tube growth
Developmental Biology, 2006 Pollen tube elongation in the pistil is a crucial step in the sexual reproduction of plants. Because the wall of the pollen tube tip is composed of a single layer of pectin and, unlike most other plant cell walls, does not contain cellulose or callose, pectin methylesterases (PMEs) likely play a central role in the pollen tube growth and determination ...
Tian, Guo-Wei +3 more
openaire +2 more sources
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
doaj +1 more source
Comprehensive analysis of tobacco pollen transcriptome unveils common pathways in polar cell expansion and underlying heterochronic shift during spermatogenesis [PDF]
, 2012 Background Many flowering plants produce bicellular pollen. The two cells of the pollen grain are destined for separate fates in the male gametophyte, which provides a unique opportunity to study genetic interactions that govern guided single-cell polar ...
Said Hafidh +5 more
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RALF4/19 peptides interact with LRX proteins to control pollen tube growth in Arabidopsis
Science, 2017 Timing a switch in tissue integrity In plants, sperm cells travel through the pollen tube as it grows toward the ovule. Successful fertilization depends on the pollen tube rupturing to release the sperm cells (see the Perspective by Stegmann and Zipfel).
M. Mecchia +10 more
semanticscholar +1 more source