Results 61 to 70 of about 130,253 (242)

Rapid tip growth: Insights from pollen tubes [PDF]

open access: yesSeminars in Cell & Developmental Biology, 2011
Pollen tubes extend rapidly in an oscillatory manner by the extreme form of polarized growth, tip growth, and provide an exciting system for studying the spatiotemporal control of polarized cell growth. The Rho-family ROP GTPase is a key signaling molecule in this growth control and is periodically activated at the apical plasma membrane to spatially ...
Yuan, Qin, Zhenbiao, Yang
openaire   +2 more sources

The effect of temperature on pollen germination and pollen tube growth of sour cherry cultivars [PDF]

open access: yesJournal 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.
doaj   +1 more source

A rapid, inexpensive, and semi-quantitative method for determining pollen tube extension using fluorescence [PDF]

open access: yes, 2014
BACKGROUND: Pollen tubes extend rapidly when pollen grains are incubated in defined media. Tube extension requires many critical functions of plant cells including molecular signaling, cytoskeleton remodeling, secretion, and cell wall synthesis ...
Amit Basu   +4 more
core   +1 more source

A calcium-dependent protein kinase, ZmCPK32, specifically expressed in maize pollen to regulate pollen tube growth.

open access: yesPLoS 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   +1 more source

Determination of cardinal temperatures for sugar apple ( Annona squamosa L.)

open access: yesCiência e Agrotecnologia, 2016
The sugar apple is highly dependent on the pollination and fruit tree pollen performance is crucial for successful fertilization and fruit set. The objective of this study was to determine the cardinal temperatures for in vitro pollen grains germination ...
Bruno Rafael Alves Rodrigues   +5 more
doaj   +1 more source

Cadmium stress disrupts the endomembrane organelles and endocytosis during Picea wilsonii pollen germination and tube growth. [PDF]

open access: yesPLoS ONE, 2014
As one of the most severe pollutants, cadmium has been reported to be harmful to plant cells, but the effects of cadmium on gymnosperm pollen germination and tube growth and the mechanism of this involvement are still unclear.
Xiaoxia Wang   +5 more
doaj   +1 more source

Expression-based and co-localization detection of arabinogalactan protein 6 and arabinogalactan protein 11 interactors in Arabidopsis pollen and pollen tubes [PDF]

open access: yes, 2013
Arabinogalactan proteins (AGPs) are cell wall proteoglycans that have been shown to be important for pollen development. An Arabidopsis double null mutant for two pollen-specific AGPs (agp6 agp11) showed reduced pollen tube growth and compromised ...
Amorim, Maria Isabel   +6 more
core   +1 more source

Self-Incompatibility of Camellia weiningensis Y.K. Li.

open access: yesHorticulturae, 2022
This study compared the pollen tube growth, fruit setting, and seed setting characteristics of Camellia weiningensis Y.K. Li. under self- and cross-pollination to identify its self-incompatibility characteristics and types. C.
Chao Gao   +4 more
doaj   +1 more source

Spermidine Modulates Pollen Tube Growth by Affecting the Factors Involved in Pollen Tube Elongation

open access: yesJournal 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

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

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