Ovule is the precursor of seed. The number and development of ovule determine the quantity and quality of seed. The development and pattern formation of embryo determine the growth and development after germination. Our group focuses on the regulatory mechanism of the initiation of ovule primordia, the differentiation and development of female gametophyte, and the development and pattern formation of embryo.
Tonoplast proton pumps establish the proton gradient that powers molecular traffic across tonoplast thereby facilitating turgor regulation and nutrient homeostasis. They also affect vacuole morphology and distribution. But how the vacuole and the tonoplast proton pumps influence plant growth and development remains unclear. Our group investigate how the vacuole morphology and distribution and tonoplast proton pumps regulate the d differentiation of germ cells and related reproductive development.
Brassinosteroid (BR) plays crucial roles in modulating plant architecture and seed yield. But BR cannot be applied in agriculture production directly because BR regulated multiple processes and could not be transcriptional regulated in different tissues. The rice mutant with reduced BR signal are dwarf with erect leaves (the ideal architecture for dense planting), but also leads to decreased reproductivity and grain yield. Enhanced BR signaling contributes to increased grain yield, but the increased plant height and leaf inclination induces lodging and reduces planting density. Our group development two solutions, one is identifying new regulators which can mediate parts of BR-regulated rice growth, the other is using tissue specific promoters to derive modified coding sequences to modulate BR signaling directly.
Spatiotemporal formation of the large vacuole regulated by the BIN2-VLG module is required for female gametophyte development in Arabidopsis. Hu LQ, Yu SX,Xu WY, Zu SH, Jiang YT, Shi HT, Zhang YJ, Xue HW, Wang YX, Lin WH*. (2022) The Plant Cell, 2023: koad007
Asynchrony of Ovule Primordia Initiation in Arabidopsis. Yu SX, Zhou LW, Hu LQ, Jiang YT, Zhang YJ, Feng SL, Jiao Y, Xu L, and Lin WH*. (2020). Development. 147, dev196618.
Interaction of brassinosteroid and cytokinin promotes ovule initiation and increases seed number per silique in Arabidopsis. Zu SH, Jiang YT, Chang JH, Zhang YJ, Xue HW, Lin WH*. (2022). Journal of integrative plant biology, 64(3): 702-716.
PIN3 positively regulates the late initiation of ovule primordia in Arabidopsis thaliana. Hu LQ, Chang JH, Yu SX, Jiang YT, Li RH, Zheng JX, Zhang YJ, Xue HW, Lin WH*. (2022) PLoS Genetics, , 18(3): e1010077.
Phosphatidic acid suppresses autophagy through competitive inhibition by binding glyceraldehyde-3-phosphate dehydrogenase (GAPC) and phosphoglycerate kinase (PGK) proteins. Guan B, Jiang YT, Lin DL, Lin WH* (co-corresponding author), Xue HW. (2022) Autophagy 18.11 (2022): 2656-2670.
OsGATA6 regulates rice heading date and grain number per panicle. Zhang YJ, Zhang Y, Zhang LL, Huang HY, Yang BJ, Luan S, Xue HW, Lin WH*. (2018) Plant Biotechnology Journal, 2018, 16(7): 1261.
OsGATA7 modulates brassinosteroids-mediated growth regulation and influences architecture and grain shape. Zhang YJ, Zhang Y, Zhang LL, Huang HY, Yang BJ, Luan S, Xue HW, and Lin WH*. (2018). Plant Biotechnology Journal. doi: 10.1111/pbi.12887.
Ovule initiation: the essential step controlling offspring number in Arabidopsis. Yu SX,Jiang YT,Lin WH*. (2022) Journal of Integrative Plant Biology, 2022, 64(8): 1469-1486.