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An involvement of a new zinc finger protein PbrZFP719 into pear self-incompatibility reaction.
Plant Cell Rep
January 2025
State Key Laboratory of Crop Genetics and Germplasm Enhancement, Saya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 211800, China.
This study indicated that the CCHC-type zinc finger protein PbrZFP719 involves into self-incompatibility by affecting the levels of reactive oxygen species and cellulose content at the tips of pollen tubes. S-RNase-based self-incompatibility (SI) facilitates cross-pollination and prevents self-pollination, which in turn increases the costs associated with artificial pollination in fruit crops. Self S-RNase exerts its inhibitory effects on pollen tube growth by altering cell structures and components, including reactive oxygen species (ROS) level and cellulose content.
View Article and Find Full Text PDFOrogeny and High Pollen Flow as Driving Forces for High Genetic Diversity of Endangered (Franch.) Pax Endemic to China.
Int J Mol Sci
January 2025
State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
(Franch.) Pax is an endangered species endemic to China, mainly scattered in the Qinling-Daba Mountains. The genetic diversity of 17 natural populations were analyzed by nuclear DNA (nDNA) and chloroplast DNA (cpDNA) to explore the driving forces for its microevolution.
View Article and Find Full Text PDFOverexpression of Cgo-miR159 Regulates Anther Dehiscence and Pollen Development in and Tobacco.
Genes (Basel)
December 2024
College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
Background: MicroRNA159 (miR159) is a conserved miRNA found in various plant species. By regulating GAMYB-like transcription factors, miR159 is involved in diverse biological processes. , a significant traditional Chinese orchid, has unique flower shape and elegant fragrance.
View Article and Find Full Text PDFThe translation initiation factor eIF3M2 upregulates HEAT SHOCK PROTEIN 70 to maintain pollen tube membrane integrity during heat shock.
Plant Physiol
December 2024
Laboratory of Pollen Biology, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 165 00 Prague 6, Czech Republic.
Pollen germination and pollen tube (PT) growth are extremely sensitive to high temperatures. During heat stress (HS), global translation shuts down and favors the maintenance of the essential cellular proteome for cell viability and protection against protein misfolding. Here, we demonstrate that under normal conditions, the Arabidopsis (Arabidopsis thaliana) eukaryotic translation initiation factor subunit eif3m1/eif3m2 double mutant exhibits poor pollen germination, loss of PT integrity and an increased rate of aborted seeds.
View Article and Find Full Text PDFNaa50 regulates ovule and embryo sac development in Arabidopsis.
Plant Cell Rep
January 2025
College of Life Sciences, Shanxi Normal University, Taiyuan, 031002, Shanxi, China.
N-terminal acetyltransferase Naa50 plays an important regulatory role in ovule development by indirectly promoting cell wall invertase 2/4 expression.
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