Results 61 to 70 of about 57,214 (301)
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
core +2 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 +3 more sources
Spermidine Modulates Pollen Tube Growth by Affecting the Factors Involved in Pollen Tube Elongation
Journal of Plant Growth Regulation, 2023 Putrescine, spermine, and spermidine are among the most significant polyamines for plant growth and development, including pollen tube elongation. Although the effects of putrescine and spermine are well-known on tube elongation, little is known about the impact of spermidine.
Çiğdem Tunur +1 more
openaire +2 more sources
Advanced Science, EarlyView.This study shows that BLADE‐ON‐PETIOLE (BOP) proteins regulate floral abscission and senescence in tomato by interacting with TFAM1 to form transcriptional condensates controlling the ARABIDOPSIS THALIANA HOMEOBOX GENE 1 (ATH1)‐mediated abscission pathway.
Nan Xiao +7 more
wiley +1 more source
Boron toxicity causes multiple effects on Malus domestica pollen tube growth
Frontiers in Plant Science, 2016 Boron is an essential micronutrient for plants. However, boron is also toxic to cells at high concentrations, although the mechanism of this stress is not known.
Kefeng eFang +6 more
doaj +1 more source
Agent-Based Modeling of Pollen Competition [PDF]
, 2018 Non-random mating in Arabidopsis Thaliana is, at least in part, due to intense competition between pollen grains to fertilize the limited number of ovules.
Bassett, Katherine
core +1 more source
Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction
Advanced Science, EarlyView.During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao +8 more
wiley +1 more source
Pollen tube incompatibility reaction on the stigma in selfpollinated Sinapis alba L.
Acta Societatis Botanicorum Poloniae, 2014 After selfpollination of Sinapis alba L. pollen tubes growth is inhibited on the stigma. The pollen grains germinate 3-4 hours after pollination. The pollen give rise to one or more pollen tubes. They grow along the papillae.
Renata Śnieżko, Krystyna Winiarczyk
doaj +1 more source
Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits
Advanced Science, EarlyView.Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu +11 more
wiley +1 more source
Metabolic control of tobacco pollination by sugars and invertases [PDF]
, 2017 Pollination in flowering plants is initiated by germination of pollen grains on stigmas followed by fast growth of pollen tubes representing highly energy-consuming processes.
Bauerfeind, M.A +10 more
core +1 more source