Results 41 to 50 of about 1,092,047 (407)

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   +3 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

Identification and functional analysis of arabinogalactan protein expressed in pear pollen tubes

open access: yesJournal of Integrative Agriculture, 2023
Arabinogalactan proteins (AGPs) are widely distributed in the plant kingdom and play a vital role during the process of plant sexual reproduction. In this study, we performed a comprehensive identification of the PbrAGPs expressed in pear pollen and ...
Hui-jun JIAO   +6 more
doaj  

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

Regularized Stokeslet rings - an efficient method for axisymmetric Stokes flow, with application to the growing pollen tube [PDF]

open access: yesPhys. Rev. Fluids 4, 063102 (2019), 2019
The method of regularized Stokeslets, based on the divergence-free exact solution to the equations of highly viscous flow due to a spatially-smoothed concentrated force, is widely employed in biological fluid mechanics. Many problems of interest are axisymmetric, motivating the study of the azimuthally-integrated form of the Stokeslet which physically ...
arxiv   +1 more source

The Arabidopsis mutant feronia disrupts the female gametophytic control of pollen tube reception [PDF]

open access: yes, 2003
Reproduction in angiosperms depends on communication processes of the male gametophyte (pollen) with the female floral organs (pistil, transmitting tissue) and the female gametophyte (embryo sac).
Federer, M.   +3 more
core   +2 more sources

Structural basis for recognition of RALF peptides by LRX proteins during pollen tube growth

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Plant reproduction relies on proper pollen tube growth to reach the female gametes. This process is highly regulated by a family of secreted signaling peptides that are recognized by cell-wall monitoring proteins to enable plant ...
S. Moussu   +6 more
semanticscholar   +1 more source

Multi‐proxy reconstruction of the Holocene vegetation and land use dynamics in the Julian Alps, north‐west Slovenia

open access: yesJournal of Quaternary Science, Volume 38, Issue 1, Page 107-122, January 2023., 2023
Abstract Small mountain lakes are natural archives for understanding long‐term natural and anthropogenic impact on the environment. This study focused on long‐term (last ca. 13 000 years) vegetation changes and sedimentary processes in the catchment area of Lake Planina pri jezeru (1430 m a.s.l.) by using mineralogical, geochemical and palynological ...
Nina Caf   +8 more
wiley   +1 more source

The juxtamembrane and carboxy-terminal domains of Arabidopsis PRK2 are critical for ROP-induced growth in pollen tubes. [PDF]

open access: yes, 2013
Polarized growth of pollen tubes is a critical step for successful reproduction in angiosperms and is controlled by ROP GTPases. Spatiotemporal activation of ROP (Rho GTPases of plants) necessitates a complex and sophisticated regulatory system, in which
Ge, Fu-Rong   +6 more
core   +1 more source

Pollen-specific pectin methylesterase involved in pollen tube growth [PDF]

open access: yes, 2006
Pollen tube elongation in the pistil is a crucial step in the sexual reproduction of plants. Because the wall of the pollen tube tip is composed of a single layer of pectin and, unlike most other plant cell walls, does not contain cellulose or callose ...
Chen, Min-Huei   +3 more
core   +1 more source

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