Results 1 to 10 of about 28,966 (260)

Structure and function of class III pistil-specific extensin-like protein in interspecific reproductive barriers

open access: yesBMC Plant Biology, 2019
Background The transmitting tissue of the style is the pathway for pollen tube growth to the ovules and has components that function in recognizing and discriminating appropriate pollen genotypes. In Nicotiana tabacum, the class III pistil extensin-like (
Camila M. L. Alves   +2 more
doaj   +1 more source

Pollen tube contents from failed fertilization contribute to seed coat initiation in Arabidopsis [version 1; peer review: 2 approved, 1 approved with reservations]

open access: yesF1000Research, 2019
Plant seeds are essential for human beings, constituting 70% of carbohydrate resources worldwide; examples include rice, wheat, and corn. In angiosperms, fertilization of the egg by a sperm cell is required for seed formation; therefore, fertilization ...
Xiaoyan Liu   +2 more
doaj   +1 more source

Pollen tube contents from failed fertilization contribute to seed coat initiation in Arabidopsis [version 2; peer review: 2 approved, 1 approved with reservations]

open access: yesF1000Research, 2019
Plant seeds are essential for human beings, constituting 70% of carbohydrate resources worldwide; examples include rice, wheat, and corn. In angiosperms, fertilization of the egg by a sperm cell is required for seed formation; therefore, fertilization ...
Xiaoyan Liu   +2 more
doaj   +1 more source

Research Progress on Calcium Ion in Gametophytic Self-Incompatibility

open access: yesJournal of Horticultural Research, 2022
Calcium ions are involved in plant self-incompatibility response as important signaling substances in cells. In the sporophytic self-incompatibility response, Ca2+ enters the stigma papilla cells and plays a key role in inhibiting incompatible pollen ...
Guo Yanling, Qu Haiyong
doaj   +1 more source

Effects of temperature on pollen viability and in vivo pollen tube growth in Citrus sinensis

open access: yesJournal 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

Knockin’ on pollen’s door: live cell imaging of early polarization events in germinating Arabidopsis pollen

open access: yesFrontiers in Plant Science, 2015
Pollen tubes are an excellent system for studying the cellular dynamics and complex signaling pathways that coordinate polarized tip growth. Although several signaling mechanisms acting in the tip-growing pollen tube have been described, our knowledge on
Frank eVogler   +2 more
doaj   +1 more source

2, 6-Dichlorobenzonitrile causes multiple effects on pollen tube growth beyond altering cellulose synthesis in Pinus bungeana Zucc. [PDF]

open access: yesPLoS ONE, 2013
Cellulose is an important component of cell wall, yet its location and function in pollen tubes remain speculative. In this paper, we studied the role of cellulose synthesis in pollen tube elongation in Pinus bungeana Zucc.
Huaiqing Hao   +4 more
doaj   +1 more source

Distinct short-range ovule signals attract or repel Arabidopsis thaliana pollen tubes in vitro

open access: yesBMC Plant Biology, 2006
Background Pollen tubes deliver sperm after navigating through flower tissues in response to attractive and repulsive cues. Genetic analyses in maize and Arabidopsis thaliana and cell ablation studies in Torenia fournieri have shown that the female ...
Preuss Daphne, Palanivelu Ravishankar
doaj   +1 more source

Genome-Wide Analysis of Cyclic Nucleotide-Gated Channel Genes Related to Pollen Development in Rice

open access: yesPlants, 2022
In the angiosperm, pollen germinates and rapidly expands the pollen tube toward the ovule. This process is important for plant double fertilization and seed setting.
Su-Kyoung Lee   +4 more
doaj   +1 more source

Organization and Regulation of the Actin Cytoskeleton in the Pollen Tube

open access: yesFrontiers in Plant Science, 2015
Proper organization of the actin cytoskeleton is crucial for pollen tube growth. However, the precise mechanisms by which the actin cytoskeleton regulates pollen tube growth remain to be further elucidated.
Xiaolu eQu   +5 more
doaj   +1 more source

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