The interaction of nutrient uptake with biotic and abiotic stresses in plants^FA

Journal of Integrative Plant Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

ABSTRACT Plants depend heavily on efficient nutrient uptake and utilization for optimal growth development. However, plants are constantly subjected to a diverse array of biotic stresses, such as pathogen infections, insect pests, herbivory, well abiotic stress like drought, salinity, extreme temperatures, imbalances. These stresses significantly impact the plant's ability take up use it efficiency. Understanding how maintain efficiency under conditions is crucial improving crop resilience sustainability. This review explores recent advancements in elucidating mechanisms underlying conditions. Our aim offer comprehensive perspective that can guide breeding stress‐tolerant nutrition‐efficient varieties, ultimately contributing advancement sustainable agriculture.

Language: Английский

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Posttranslational regulation of plant membrane transporters

The Plant Journal, Journal Year: 2025, Volume and Issue: 121(3)

Published: Feb. 1, 2025

SUMMARY The movement of substances across biological membranes is often constrained by physical or energetic barriers, requiring the action transporter proteins embedded within lipidic bilayer. These transporters also provide finely tuned regulation substrate fluxes, essential for maintaining cellular function under both normal and stress conditions. Consequently, are subject to multiple levels tight regulation, including posttranslational modifications (PTMs). Here, we review current knowledge on PTMs affecting plant membrane their impact protein function. attachment chemical groups residues enables rapid modulation functions, influencing a wide range characteristics. Phosphorylation stands out as most common PTM, attributes such activation status, localization specificity. In turn, ubiquitination acts signal downregulation, either targeting proteasomal degradation triggering endocytosis subsequent vacuolar sorting. roles other, less remain unclear, limited examples exist recent advances have been sparse. complex dynamics transport, which require precise flux magnitudes directions, appear demand multi‐layered control associated transporters. consequence, further research needed investigate individual transporters, well interplay single transporter, better understand how gradual achieved.

Language: Английский

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The Bor1 elevator transport cycle is subject to autoinhibition and activation

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 22, 2024

Boron, essential for plant growth, necessitates precise regulation due to its potential toxicity. This is achieved by borate transporters (BORs), which are homologous the SLC4 family. The Arabidopsis thaliana Bor1 (AtBor1) transporter from clade I undergoes slow through degradation and translational suppression, but fast via direct activity modulation was unclear. Here, we combine cryo-electron microscopy, mutagenesis, functional characterization study AtBor1, revealing high-resolution structures of dimer in one inactive three active states. Our findings show that AtBor1 regulated two distinct mechanisms: an autoinhibitory domain at carboxyl terminus obstructs substrate pathway conserved salt bridges, phosphorylation Thr410 allows interaction with a positively charged pocket cytosolic face, transport. These results elucidate molecular basis AtBor1's highlight role boron level plants.

Language: Английский

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Connecting calcium signaling with boron transport: the crucial role of CPK10 protein kinase

New Phytologist, Journal Year: 2024, Volume and Issue: 243(5), P. 1633 - 1635

Published: May 4, 2024

This article is a Commentary on Wang et al . (2024), 243 : 1795–1809.

Language: Английский

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