Potassium homeostasis and signalling: from the whole plant to the subcellular level DOI Creative Commons
Lars H. Wegner, Igor Pottosin, Ingo Drèyer

и другие.

Quantitative Plant Biology, Год журнала: 2025, Номер 6

Опубликована: Янв. 1, 2025

Potassium is an essential macronutrient required for plant growth and development. Over the recent decade, important signalling role of K+ has emerged. Here, we discuss some aspects such at various levels functional organisation. The topic covered include: (1) mechanisms long-distant transport in xylem phloem molecular identity regulation loading unloading into vasculature; (2) essentiality physiological roles cycling between shoots roots; (3) sensing low K+; (4) maintenance homeostasis cellular level; (5) stress-induced modulation cytosolic as a signal adaptive responses to hostile environment; (6) stress-specific "signatures" their decoding by purine metabolism H+-ATPase activity; (7) loss metabolic switch regulator autophagy; (8) vacuolar sensing.

Язык: Английский

Dynamics of homeostats: the basis of electrical, chemical, hydraulic, pH and calcium signaling in plants DOI Creative Commons

Leslie Contador-Álvarez,

Tamara Rojas-Rocco,

Talía Rodríguez-Gómez

и другие.

Quantitative Plant Biology, Год журнала: 2025, Номер 6

Опубликована: Янв. 1, 2025

Abstract Homeostats are important to control homeostatic conditions. Here, we have analyzed the theoretical basis of their dynamic properties by bringing K homeostat out steady state (i) an electrical stimulus, (ii) external imbalance in + or H gradient (iii) a readjustment transporter activities. The reactions such changes can be divided into short-term response (tens milliseconds), where membrane voltage changed along with concentrations ions that not very abundant cytosol (H and Ca 2+ ), long-term (minutes longer) caused slow concentrations. mechanistic insights its dynamics limited but generalized, providing new perspective on electrical, chemical, hydraulic, pH signaling plants. results presented here also provide background for optogenetic experiments

Язык: Английский

Процитировано

1
Homeostats: The hidden rulers of ion homeostasis in plants DOI Creative Commons
Ingo Drèyer, Naomí Hernández-Rojas,

Yasnaya Bolua-Hernández

и другие.

Quantitative Plant Biology, Год журнала: 2024, Номер 5

Опубликована: Янв. 1, 2024

Abstract Ion homeostasis is a crucial process in plants that closely linked to the efficiency of nutrient uptake, stress tolerance and overall plant growth development. Nevertheless, our understanding fundamental processes ion still incomplete highly fragmented. Especially at mechanistic level, we are dissecting physiological systems analyse different parts isolation. However, modelling approaches have shown it not individual transporters but rather transporter networks (homeostats) control membrane transport associated homeostatic cells. To facilitate access such theoretical approaches, potassium homeostat explained here detail serve as blueprint for other homeostats. The unbiased approach provided strong arguments abundant existence electroneutral H + /K antiporters plants.

Язык: Английский

Процитировано

6
Genome-Wide Analysis of the ABCB Family and Its Expression in Adventitious Root Development of Paeonia ostii DOI Creative Commons
Wenqian Shang, Can Cui, Liu Xi

и другие.

Horticulturae, Год журнала: 2025, Номер 11(2), С. 138 - 138

Опубликована: Янв. 28, 2025

Tree peony (Paeonia ostii T. Hong et J. X. Zhang) is an important medicinal and ornamental plant. It would be useful to propagate this plant in tissue culture, but it difficult induce root formation. Auxin plays a pivotal role adventitious formation, ABCB transporter proteins are involved auxin transport. To elucidate the function of family P. ostii, we identified members gene genome analyzed functional characteristics putative proteins. In total, 29 genes were P.ostii, distributed on five chromosomes. phylogenetic analysis, PoABCBs grouped into four subfamilies, with largest being Subfamily I, characterized by their MDR structure. PoABCB same subfamily exhibited similar intron/exon arrangements motif composition. The promoters contained cis-acting elements associated photoresponse hormone signaling. qRT-PCR analyses showed that, after treatment tissue-cultured seedlings auxin, (PoABCB6, PoABCB10, PoABCB11, PoABCB12, PoABCB16) significantly upregulated during development. These may play roles response development vitro.

Язык: Английский

Процитировано

0
Potassium homeostasis and signalling: from the whole plant to the subcellular level DOI Creative Commons
Lars H. Wegner, Igor Pottosin, Ingo Drèyer

и другие.

Quantitative Plant Biology, Год журнала: 2025, Номер 6

Опубликована: Янв. 1, 2025

Potassium is an essential macronutrient required for plant growth and development. Over the recent decade, important signalling role of K+ has emerged. Here, we discuss some aspects such at various levels functional organisation. The topic covered include: (1) mechanisms long-distant transport in xylem phloem molecular identity regulation loading unloading into vasculature; (2) essentiality physiological roles cycling between shoots roots; (3) sensing low K+; (4) maintenance homeostasis cellular level; (5) stress-induced modulation cytosolic as a signal adaptive responses to hostile environment; (6) stress-specific "signatures" their decoding by purine metabolism H+-ATPase activity; (7) loss metabolic switch regulator autophagy; (8) vacuolar sensing.

Язык: Английский

Процитировано

0