Results 21 to 30 of about 52,751 (307)

Glycolysis regulates pollen tube polarity via Rho GTPase signaling. [PDF]

open access: yesPLoS Genetics, 2018
As a universal energy generation pathway utilizing carbon metabolism, glycolysis plays an important housekeeping role in all organisms. Pollen tubes expand rapidly via a mechanism of polarized growth, known as tip growth, to deliver sperm for ...
Wei Chen   +7 more
doaj   +1 more source

Pollen Tubes Growth Following Self- and Crosspollination in Melaleuca Alternifolia (Maiden & Betche) Cheel [PDF]

open access: yes, 2009
Pollen tubes growth following controlled self-and croos-polination of several individual of tress of melaleuca alternifolia was observed under fluorescence microscope.
Baskorowati, L. (Liliana)
core   +1 more source

Hydrolases in pollen grains and pollen tubes

open access: yesActa Societatis Botanicorum Poloniae, 2015
A. Górska-Brylass
doaj   +4 more sources

Molecular cloning and transcriptional activity of a new Petunia calreticulin gene involved in pistil transmitting tract maturation, progamic phase, and double fertilization [PDF]

open access: yes, 2013
Calreticulin (CRT) is a highly conserved and ubiquitously expressed Ca2+-binding protein in multicellular eukaryotes. As an endoplasmic reticulum-resident protein, CRT plays a key role in many cellular processes including Ca2+ storage and release ...
A Christensen   +59 more
core   +2 more sources

The pollen receptor kinase LePRK2 mediates growth-promoting signals and positively regulates pollen germination and tube growth [PDF]

open access: yes, 2008
In flowering plants, the process of pollen germination and tube growth is required for successful fertilization. A pollen receptor kinase from tomato (Solanum lycopersicum), LePRK2, has been implicated in signaling during pollen germination and tube ...
Gui, Cai Ping   +6 more
core   +4 more sources

Nitric Oxide Participates in Aluminum-Stress-Induced Pollen Tube Growth Inhibition in Tea (Camelliasinensis) by Regulating CsALMTs

open access: yesPlants, 2022
Nitric oxide (NO), as a signal molecule, is involved in the mediation of heavy-metal-stress-induced physiological responses in plants. In this study, we investigated the effect of NO on Camellia sinensis pollen tubes exposed to aluminum (Al) stress ...
Xiaohan Xu   +8 more
doaj   +1 more source

Reproductive success through high pollinator visitation rates despite self incompatibility in an endangered wallflower [PDF]

open access: yes, 2016
PREMISE OF THE STUDY: Self incompatibility (SI) in rare plants presents a unique challenge—SI protects plants from inbreeding depression, but requires a sufficient number of mates and xenogamous pollination. Does SI persist in an endangered polyploid? Is
Herman, Julie A.   +6 more
core   +2 more sources

How pollen tubes grow

open access: yesDevelopmental Biology, 2007
Sexual reproduction of flowering plants depends on delivery of the sperm to the egg, which occurs through a long, polarized projection of a pollen cell, called the pollen tube. The pollen tube grows exclusively at its tip, and this growth is distinguished by very fast rates and reaches extended lengths.
Krichevsky, Alexander   +5 more
openaire   +2 more sources

Kanamycin resistance during in vitro development of pollen from transgenic tomato plants [PDF]

open access: yes, 1987
Effects of kanamycin on pollen germination and tube growth of pollen from non-transformed plants and from transgenic tomato plants containing a chimaeric kanamycin resistance gene were determined. Germination of pollen was not affected by the addition of
AP Czernilofsky   +19 more
core   +2 more sources

Callose (β-1,3 glucan) is essential for Arabidopsis pollen wall patterning, but not tube growth

open access: yesBMC Plant Biology, 2005
Background Callose (β-1,3 glucan) separates developing pollen grains, preventing their underlying walls (exine) from fusing. The pollen tubes that transport sperm to female gametes also contain callose, both in their walls as well as in the plugs that ...
Maruyama Daisuke   +4 more
doaj   +1 more source

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