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ZmSIDP1, a DUF1644 gene from the halophyte Zoysia matrella, positively regulates salt tolerance in rice.
Plant Physiol Biochem
January 2025
The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), 210014, Nanjing, Jiangsu, China. Electronic address:
As a detrimental abiotic stressor, salinity affects plant growth and yield. Domain of unknown function 1644 (DUF1644) is a large plant-specific DUF protein family that is predicted to be involved in abiotic stress responses in plants. However, the biological functions of DUF1644 genes in plants remain largely unexplored, especially in halophytes.
View Article and Find Full Text PDFFunctional study of ZmHDZ4 in maize (Zea mays) seedlings under drought stress.
BMC Plant Biol
December 2024
College of Agronomy, Henan Agricultural University, Zhengzhou, Henan, 450046, China.
Background: Maize is a major feed and industrial crop and pivotal for ensuring global food security. In light of global warming and climate change, improving maize tolerance to water deficit is crucial. Identification and functional analysis of drought tolerance genes have potential practical importance in understanding the molecular mechanisms of drought stress.
View Article and Find Full Text PDFGenome-wide identification and analysis of the HD-Zip transcription factor family in oats.
Front Mol Biosci
October 2024
Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Nanjing Forestry University, Nanjing, China.
Introduction: HD-Zip transcription factors are an important class of plant transcription factors involved in regulating plant growth and development as well as various stress responses. In order to explore the characteristics of oat HD-Zip transcription factors and their transcriptomic expression patterns under abiotic stress, this study identified members of the HD-Zip gene family in the oat genome through bioinformatics methods and analyzed their basic physicochemical properties, evolutionary relationships, conserved structural domains, gene duplication relationships, and expression profiles.
Results: 74 HD-Zip gene sequences were identified in the oat genome, unevenly distributed in all chromosomes except the 4D chromosome.
An HD-Zip III transcription factor, BjPHVa, negatively regulates non-glandular trichome formation in Brassica juncea.
Physiol Plant
October 2024
Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou, China.
Trichomes are specialized structures derived from epidermal cells. Non-glandular trichomes primarily protect plants from herbivores and intense ultraviolet radiation by acting as a physical barrier. Recent research has highlighted the importance of homeodomain leucine zipper (HD-Zip) IV transcription factors (TFs) in promoting trichome development.
View Article and Find Full Text PDFNatural variation at the cotton HIC locus increases trichome density and enhances resistance to aphids.
Plant J
November 2024
Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Article Synopsis
- Plant trichomes play a crucial role in cell differentiation and provide defense against pests and environmental stresses, with higher trichome density correlating to lower aphid infestations.
- The study highlights the HIC (hirsute cotton) gene, which enhances cotton trichome density and therefore improves resistance to cotton aphids, acting as a key transcriptional activator.
- A specific variant in the HIC promoter increases its expression and trichome density in certain cotton species, demonstrating its potential for breeding cotton varieties with better pest resistance.
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