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Shoot-Silicon-Signal protein to regulate root silicon uptake in rice.
Nat Commun
December 2024
Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan.
Plants accumulate silicon to protect them from biotic and abiotic stresses. Especially in rice (Oryza sativa), a typical Si-accumulator, tremendous Si accumulation is indispensable for healthy growth and productivity. Here, we report a shoot-expressed signaling protein, Shoot-Silicon-Signal (SSS), an exceptional homolog of the flowering hormone "florigen" differentiated in Poaceae.
View Article and Find Full Text PDFOsbZIP23 delays flowering by repressing OsMADS14 expression in rice.
Plant Physiol Biochem
December 2024
Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Zhongshan Biological Breeding Laboratory/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Agricultural College of Yangzhou University, Yangzhou, 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009, China. Electronic address:
Flowering time is a fundamental factor determining the global distribution and final yield of rice (Oryza sativa L.). The initiation of the floral transition process signifies the beginning of the reproductive phase.
View Article and Find Full Text PDFA single-base deletion in exon 2 of Hd1 delineates monogenic recessive photoperiod insensitivity in aromatic Joha rice: a novel allele for seasonal adaptability.
Biol Res
November 2024
Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat, Assam, 785013, India.
Background: Assam's aromatic Joha rice is a unique rice class famous for its aroma, taste, and nutritional benefits, which fetch high market prices in domestic and international markets. Joha landraces are inherently poor yielders due to their strong aroma and predominantly photoperiod sensitivity. Hybridization involving non-aromatic HYVs improves yield with concomitant loss of quality.
View Article and Find Full Text PDFSucrose induces flowering by degradation of the floral repressor Ghd7 via K48-linked polyubiquitination in rice.
J Integr Plant Biol
December 2024
Crop Biotech Institute and Graduate School of Green-Bio Science, Kyung Hee University, Yongin, 17104, Korea.
Sucrose functions as a signaling molecule in several metabolic pathways as well as in various developmental processes. However, the molecular mechanisms by which sucrose regulates these processes remain largely unknown. In the present study, we demonstrate that sucrose promotes flowering by mediating the stability of a regulatory protein that represses flowering in rice.
View Article and Find Full Text PDFResearch Progress on Photoperiod Gene Regulation of Heading Date in Rice.
Curr Issues Mol Biol
September 2024
Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
Heading date is a critical physiological process in rice that is influenced by both genetic and environmental factors. The photoperiodic pathway is a primary regulatory mechanism for rice heading, with key florigen genes (Heading date 3a) and (RICE FLOWERING LOCUS T1) playing central roles. Upstream regulatory pathways, including and , also significantly impact this process.
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