Results 41 to 50 of about 1,221,498 (351)

Pollen Tube Growth and Self-Compatibility in Almond [PDF]

open access: yes, 2013
Although pollen tube growth has been an important criterion for self-compatibility evaluation in almond, there is not a clear-cut separation between positive and negative growth of pollen tubes in the different genotypes.
Alonso Segura, José Manuel   +3 more
core   +1 more source

Flavonols control pollen tube growth and integrity by regulating ROS homeostasis during high-temperature stress

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance Plant sexual reproduction is required for seed and fruit production and is highly sensitive to elevated temperatures, suggesting that climate change may have profound agricultural impacts through inhibition of this process.
Joëlle K. Muhlemann   +2 more
semanticscholar   +1 more source

Roles for NO and ROS signalling in pollen germination and pollen-tube elongation in Cupressus arizonica

open access: yesBiologia Plantarum, 2015
Roles for nitric oxide (NO) and reactive oxygen species (ROS) during pollen-tube growth have been well established in angiosperms, but there remains lack of information regarding their potential signalling roles in pollen tubes in gymnosperms.
S. Pasqualini   +6 more
doaj   +1 more source

Effects of Alternaria alternata f.sp. lycopersici toxins on pollen [PDF]

open access: yes, 1988
Effects of the phytotoxic compounds (AAL-toxins) isolated from cell-free culture filtrates of Alternaria alternata f.sp. lycopersici on in vitro pollen development were studied. AAL-toxins inhibited both germination and tube growth of pollen from several
Bino, R.J.,   +4 more
core   +2 more sources

Reproductive abnormalities in interspecific crosses involving Gossypium hirsutum and Gossypium arboreum [PDF]

open access: yesElectronic Journal of Plant Breeding, 2010
A successful cross fertilization involving two different species implies that a chain of reproductive process takes placeunhampered after pollination. The coordination and interaction between genes or gene complexes in the pollen parent andmatching gene ...
S.Saravanan, K. Koodalingam and T.S. Raveendran
doaj  

Arabidopsis LIM proteins PLIM2a and PLIM2b regulate actin configuration during pollen tube growth

open access: yesBiologia 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   +1 more source

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

Actin Bundles in The Pollen Tube [PDF]

open access: yesInternational Journal of Molecular Sciences, 2018
The angiosperm pollen tube delivers two sperm cells into the embryo sac through a unique growth strategy, named tip growth, to accomplish fertilization. A great deal of experiments have demonstrated that actin bundles play a pivotal role in pollen tube tip growth.
Zhang, Shujuan   +5 more
openaire   +2 more sources

Arabidopsis pollen tube integrity and sperm release are regulated by RALF-mediated signaling

open access: yesScience, 2017
Timing a switch in tissue integrity In plants, sperm cells travel through the pollen tube as it grows toward the ovule. Successful fertilization depends on the pollen tube rupturing to release the sperm cells (see the Perspective by Stegmann and Zipfel).
Zengxiang Ge   +20 more
semanticscholar   +1 more source

Incidence and post-pollination mechanisms of nonrandom mating in Arabidopsis thaliana [PDF]

open access: yes, 2009
Compatible pollinations from many differenttaxa display nonrandom mating. Here we describe a systemfor examining questions of nonrandom mating in Arabidopsisthaliana.
Carlson, Ann L   +2 more
core   +3 more sources

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