Results 41 to 50 of about 130,253 (242)
Cell Wall Composition, Biosynthesis and Remodeling during Pollen Tube Growth
Plants, 2013 The pollen tube is a fast tip-growing cell carrying the two sperm cells to the ovule allowing the double fertilization process and seed setting. To succeed in this process, the spatial and temporal controls of pollen tube growth within the female organ ...
Jean-Claude Mollet +3 more
doaj +1 more source
Structural basis for recognition of RALF peptides by LRX proteins during pollen tube growth
Proceedings 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
Arabidopsis LIM proteins PLIM2a and PLIM2b regulate actin configuration during pollen tube growth
Biologia 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
Proceedings 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
Genomics, 2020 Pectin methyl-esterases (PMEs) play crucial roles in plant growth. In this study, we identified 81 PbrPMEs in pear. Whole-genome duplication and purifying selection drove the evolution of PbrPME gene family.
Chao‐Rong Tang +7 more
semanticscholar +1 more source
Molecular Plant, 2019 Pollen tube growth is crucial for successful fertilization. In Arabidopsis thaliana, the ANXUR (ANX)/BUPS receptor kinase complex controls and maintains pollen tube growth in response to autocrine RAPID ALKALINIZATION FACTOR4/19 (RALF4/19) signaling ...
Hanqian Feng +10 more
semanticscholar +1 more source
A Rho family GTPase controls actin dynamics and tip growth via two counteracting downstream pathways in pollen tubes. [PDF]
, 2005 Tip growth in neuronal cells, plant cells, and fungal hyphae is known to require tip-localized Rho GTPase, calcium, and filamentous actin (F-actin), but how they interact with each other is unclear.
Dowd, Peter +6 more
core +3 more sources
BMC Plant Biology, 2019 Background During sexual reproduction, pollen grains land on the stigma, rehydrate and produce pollen tubes that grow through the female transmitting-tract tissue allowing the delivery of the two sperm cells to the ovule and the production of healthy ...
Ferdousse Laggoun +8 more
doaj +1 more source
The juxtamembrane and carboxy-terminal domains of Arabidopsis PRK2 are critical for ROP-induced growth in pollen tubes. [PDF]
, 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
Regulation of Pollen Tube Growth by Transglutaminase [PDF]
Plants, 2013 In pollen tubes, cytoskeleton proteins are involved in many aspects of pollen germination and growth, from the transport of sperm cells to the asymmetrical distribution of organelles to the deposition of cell wall material. These activities are based on the dynamics of the cytoskeleton.
Giampiero Cai +2 more
openaire +6 more sources