Results 11 to 20 of about 21,065 (290)
Arabidopsis LIM proteins PLIM2a and PLIM2b regulate actin configuration during pollen tube growth
Biologia Plantarum, 2013 The pollen tube grows rapidly, exclusively at its tip, to deliver its sperm for fertilization. The polarized tip growth of pollen tubes is dependent on the highly dynamic actin cytoskeleton. Plant LIM proteins (named after initials of containing proteins
J. R. Ye, L. M. Zhou, M. L. Xu
doaj +2 more sources
The effect of temperature on pollen germination and pollen tube growth of pear cultivars [PDF]
Journal of Agricultural Sciences (Belgrade), 2016 The effect of three different temperatures (8, 16 and 24°C) on pollen germination and length of pollen tube in vitro was investigated in four pear cultivars (‘Butirra Precoce Morettini’, ‘Williams’, ‘Conference’ and ‘Abate Fetel’).
Radović Aleksandar R. +3 more
doaj +2 more sources
PLoS ONE, 2018 Calcium-dependent protein kinases (CPKs) play an essential role in the regulation of pollen tube growth. Although CPK genes have been identified in maize, and some have been functionally characterized, the molecular function of ZmCPKs associated with ...
Jie Li +7 more
doaj +2 more sources
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 +3 more sources
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 +3 more sources
Pollen germination and pollen tube growth in ZP maize lines [PDF]
Genetika, 2014 The study was conducted on the in vitro pollen germination at 26?, 28?, 32? and 35?C for 24h of male parental lines, pollen tube growth in vivo in cross pollination of female and male parental lines that make couples in four hybrids: ZP 504 su (? ZPPL 51 ? ? ZPPL 67); ZP 677 (? ZPPL 17 ? ? ZPPL 201); ZP 704 (? ZPPL 109 ? ?
Radosav Cerovic +6 more
openaire +5 more sources
Organelle trafficking, the cytoskeleton, and pollen tube growth [PDF]
Journal of Integrative Plant Biology, 2014 AbstractThe pollen tube is fundamental for the reproduction of seed plants. Characteristically, it grows relatively quickly and uni‐directionally (“polarized growth”) to extend the male gametophyte to reach the female gametophyte. The pollen tube forms a channel through which the sperm cells move so that they can reach their targets in the ovule.
Cai, Giampiero +2 more
openaire +6 more sources
Annexin5 plays a vital role in Arabidopsis pollen development via Ca2+-dependent membrane trafficking. [PDF]
PLoS ONE, 2014 The regulation of pollen development and pollen tube growth is a complicated biological process that is crucial for sexual reproduction in flowering plants.
Jingen Zhu +6 more
doaj +1 more source
The Arabidopsis thaliana Class II Formin FH13 Modulates Pollen Tube Growth
Frontiers in Plant Science, 2021 Formins are a large, evolutionarily conserved family of actin-nucleating proteins with additional roles in regulating microfilament, microtubule, and membrane dynamics.
Eva Kollárová +2 more
doaj +1 more source
New Phytologist, 1989 summaryThis review considers pollen tube growth with regard to current information on pollen tube cytoplasm, wall structure and calcium ion interactions with pollen tubes. Pollen tubes have a marked cytoplasmic Polarity with a number of distinct zones along the tube, each with a characteristic complement of cytoplasmic and nuclear structures.
Martin W, Steer, Jill M, Steer
openaire +2 more sources