Sorbitol dehydrogenase aids grain-fill and integrates carbohydrate metabolism with redox in the hypoxic maize endosperm
UncategorizedAbstractExtreme low oxygen is typical of microenvironments inside developing grains, thus requiring metabolic adaptations to hypoxia. Potential contributions from sorbitol dehydrogenase (SDH) are tested here for maize (Zea mays) since the reversible reaction (fructose + NADH ↔ sorbitol + NAD+) can…
TRANSPORTIN1 coordinates plant immune activation by mediating nuclear import of ADR1 helper NLRs
UncategorizedPlant NLR immune receptors can undergo dynamic changes in subcellular localization upon effector recognition. The Arabidopsis ADR1 helper NLRs mainly act at the plasma membrane (PM) in a phospholipid-dependent manner. Whether ADR1s display nuclear translocation and how ADR1s subcellular partitioning…
A PSA4–YCF4 complex promotes assembly of the photosystem I reaction center in Arabidopsis
UncategorizedAbstractPhotosystem I (PSI) is one of nature's most intricate and efficient nanomachines driving photosynthetic electron transfer. Its biogenesis requires a sophisticated, multi-step assembly pathway coordinated by a suite of nucleus- and plastid-encoded factors, yet the precise molecular mechanisms…
Derepression of BRANCHED1-Controlled Sucrose Hydrolysis Drives Bud Outgrowth and Phytoplasma-Induced Symptoms in Ziziphus jujuba
UncategorizedAbstractSugar metabolism and signalling play major roles in the early events of axillary bud outgrowth by repressing BRANCHED 1 (BRC1) expression. However, whether BRC1 controls sugar metabolism during the cessation of axillary bud growth remains unknown. In previous research it was shown that jujube…
Somatic selection shapes mutation accumulation in Citrus sinensis
UncategorizedAbstractAn organism becomes genetically mosaic through the accumulation of somatic mutations. Genetic mosaicism is a commonality of multicellular life and has been studied extensively in humans due to its associations with aging and diseases. In humans, somatic selection shapes the accumulation of somatic…
RNA m6A methylation fine-tunes the jasmonic acid biosynthesis pathway to modulate plant aging
UncategorizedAbstractN6-methyladenosine (m6A) is a context-dependent mRNA modification, yet how its dynamics integrate with endogenous signaling to shape plant development remains unclear. Here, we provide further evidence for HIZ2 as an essential component of the m6A writer complex in Arabidopsis, which methylates…
Nitrate transiently rewires transcription in developing xylem of Populus wood to promote cell expansion via CRF4
UncategorizedAbstractNitrate functions both as a nutrient and a signaling molecule, but how nitrate is perceived and translated into developmental outputs within woody tissues is unknown. Here, we show that developing xylem in hybrid aspen (Populus tremula × P. tremuloides) mounts a rapid, cell-type-specific transcriptional…