Potassium in plants: Growth regulation, signaling, and environmental stress tolerance

Plant Physiology and Biochemistry, Journal Year: 2022, Volume and Issue: 172, P. 56 - 69

Published: Jan. 7, 2022

Language: Английский

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Ca²⁺ signaling in plant responses to abiotic stresses

Journal of Integrative Plant Biology, Journal Year: 2022, Volume and Issue: 64(2), P. 287 - 300

Published: Jan. 20, 2022

Abstract Adverse variations of abiotic environmental cues that deviate from an optimal range impose stresses to plants. Abiotic severely impede plant physiology and development. Consequently, such dramatically reduce crop yield negatively impact on ecosystem stability composition. Physical components can be, for example, suboptimal temperature osmotic perturbations, while representative chemical facets be toxic ions or nutrient availability. The sheer complexity causes a multitude diverse mechanisms their sensing signal transduction. Ca 2+ , as versatile second messenger, plays multifaceted roles in almost all stress responses that, certain stress, is not only reciprocally connected with its perception, but also multifunctionally ensures subsequent Here, we will focus salt/osmotic altered availability model cases detail novel insights into the identity link perception formation well new implementation. Finally, deduce emerging conceptual consequences these outline arising avenues future research role signaling

Language: Английский

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Potassium in plant physiological adaptation to abiotic stresses

Plant Physiology and Biochemistry, Journal Year: 2022, Volume and Issue: 186, P. 279 - 289

Published: July 16, 2022

Language: Английский

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Functions of Nitrogen, Phosphorus and Potassium in Energy Status and Their Influences on Rice Growth and Development

Rice Science, Journal Year: 2022, Volume and Issue: 29(2), P. 166 - 178

Published: Feb. 16, 2022

Nitrogen (N), phosphorus (P) and potassium (K) are important essential nutrients for plant growth development, but their functions in energy status remains unclear. Here, we grew Nipponbare rice seedlings a chamber 20 d at 30 °C/24 °C (day/night) under natural sunlight conditions with different nutrient regimes. The results showed that N had the strongest influence on followed by P K. highest nonstructural carbohydrate content, dry matter weight, net photosynthetic rate (Pn), ATP as well NADH dehydrogenase, cytochrome oxidase ATPase activities were found plants received sufficient N, lowest values of these parameters detected N-deficient plants. Higher accumulation was observed K-deficient than P-deficient treatments, there no significant difference ratio respiration to Pn between two suggesting differences production efficiency may have accounted this result. This hypothesis confirmed higher contents We therefore inferred abilities among K seedlings, which determined development.

Language: Английский

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WRKY33 negatively regulates anthocyanin biosynthesis and cooperates with PHR1 to mediate acclimation to phosphate starvation

Plant Communications, Journal Year: 2024, Volume and Issue: 5(5), P. 100821 - 100821

Published: Jan. 16, 2024

Anthocyanin accumulation is acknowledged as a phenotypic indicator under phosphate (Pi) starvation. However, the negative regulator of this process and molecular mechanisms remain largely unexplored. In study, our results revealed WRKY33 acts phosphorus-status-dependent anthocyanin biosynthesis. regulates expression dihydroflavonol 4-reductase (DFR), rate-limiting enzyme in production, direct indirect manner. directly binds to DFR promoter repress its or interacts with PAP1 by interfering MBW complex influence transcriptional activation indirectly. -Pi conditions, PHR1 interacted WRKY33, protein level decreased, thereby repression on attenuated, leading Arabidopsis. Further genetic biochemical assays suggest that also involved regulating factors impact turnover. Taken together, findings reveal Pi starvation represses repressor biosynthesis, finely tune This 'double-negative logic' regulation biosynthesis required for plants maintain metabolic homeostasis adaption

Language: Английский

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Calcium-Mobilizing Properties of Salvia miltiorrhiza-Derived Carbon Dots Confer Enhanced Environmental Adaptability in Plants

ACS Nano, Journal Year: 2022, Volume and Issue: 16(3), P. 4357 - 4370

Published: Feb. 24, 2022

Biomass-derived carbon dots (CDs) are promising nanotools for agricultural applications and function as a reactive oxygen species (ROS) scavenger to alleviate plant oxidative stress under adverse environments. Nevertheless, plants need ROS burst fully activate Ca2+-regulated defensive signaling pathway. The underlying mechanism of CDs improve environmental adaptability without is largely unknown. Here, Salvia miltiorrhiza-derived triggered ROS-independent Ca2+ mobilization in roots. Mechanistic investigation attributed this mainly the hydroxyl carboxyl groups on CDs. CDs-triggered was found be dependent production cyclic nucleotides nucleotide-gated ion channels. Lectin receptor kinases were verified essential mobilization. hydroponic application promoted salinity nutrient-deficient conditions. All these findings uncover that have Ca2+-mobilizing property thus can used simultaneous amplifier crop improvement.

Language: Английский

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Phloem iron remodels root development in response to ammonium as the major nitrogen source

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Jan. 28, 2022

Plants use nitrate and ammonium as major nitrogen (N) sources, each affecting root development through different mechanisms. However, the exact signaling pathways involved in are poorly understood. Here, we show that, Arabidopsis thaliana, either disruption of cell wall-localized ferroxidase LPR2 or a decrease iron supplementation efficiently alleviates growth inhibition primary roots response to NH4+ N source. Further study revealed compared with nitrate, led excess accumulation apoplast phloem an LPR2-dependent manner. Such aberrant subsequently causes massive callose deposition from resulting burst reactive oxygen species, which impairs function phloem. Therefore, attenuates by insufficiently allocating sucrose zone. Our results link morphology environmental cues.

Language: Английский

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A chromosome‐scale Gastrodia elata genome and large‐scale comparative genomic analysis indicate convergent evolution by gene loss in mycoheterotrophic and parasitic plants

The Plant Journal, Journal Year: 2021, Volume and Issue: 108(6), P. 1609 - 1623

Published: Oct. 15, 2021

Mycoheterotrophic and parasitic plants are heterotrophic parasitize on fungi plants, respectively, to obtain nutrients. Large-scale comparative genomics analysis has not been conducted in mycoheterotrophic or between these two groups of parasites. We assembled a chromosome-level genome the fully plant Gastrodia elata (Orchidaceae) performed genomic analyses genomes G. four orchids (initial mycoheterotrophs), three (Cuscuta australis, Striga asiatica, Sapria himalayana), 36 autotrophs from various angiosperm lineages. It was found that while hemiparasite S. asiatica initial orchids, approximately 4-5% conserved orthogroups were lost, C. australis both lost 10% orthogroups, indicating increased heterotrophy is positively associated with gene loss. Importantly, many genes essential for autotrophs, including those involved photosynthesis, circadian clock, flowering time regulation, immunity, nutrient uptake, root leaf development, convergently australis. The high-quality will facilitate future studies physiology, ecology, evolution our findings highlight critical role loss lifestyles.

Language: Английский

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The rice phosphate transporter OsPHT1;7 plays a dual role in phosphorus redistribution and anther development

PLANT PHYSIOLOGY, Journal Year: 2022, Volume and Issue: 188(4), P. 2272 - 2288

Published: Jan. 25, 2022

Abstract Inorganic phosphate (Pi) is the predominant form of phosphorus (P) readily accessible to plants, and Pi Transporter 1 (PHT1) genes are major contributors root uptake. However, mechanisms underlying transport recycling within which vital for optimizing P use efficiency, remain elusive. Here, we characterized a functionally unknown rice (Oryza sativa) PHT1 member barely expressed in roots, OsPHT1;7. Yeast complementation Xenopus laevis oocyte assay demonstrated that OsPHT1;7 could mediate transport. Reverse-transcription quantitative polymerase chain reaction histochemical analyses showed was preferentially source leaves nodes. A further fine-localization analysis by immunostaining expression restricted vascular bundle (VB) sheath phloem as well regular/diffuse- enlarged-VBs In accordance with this pattern, mutation led increased decreased distribution (old leaves) sink organs (new leaves/panicles), respectively, indicating involved redistribution. Furthermore, an overwhelmingly higher transcript abundance anthers than other members, ospht1;7 mutants were impaired accumulation but not pistils or husks. Moreover, germination pollen grains significantly inhibited upon mutation, leading >80% decrease seed-setting rate grain yield. Taken together, our results provide evidence crucial transporter stimulating both vegetative reproductive growth.

Language: Английский

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Understandings and future challenges in soybean functional genomics and molecular breeding

Journal of Integrative Plant Biology, Journal Year: 2022, Volume and Issue: 65(2), P. 468 - 495

Published: Dec. 13, 2022

Abstract Soybean ( Glycine max ) is a major source of plant protein and oil. breeding has benefited from advances in functional genomics. In particular, the release soybean reference genomes advanced our understanding adaptation to soil nutrient deficiencies, molecular mechanism symbiotic nitrogen (N) fixation, biotic abiotic stress tolerance, roles flowering time regional adaptation, architecture, seed yield quality. Nevertheless, many challenges remain for genomics breeding, mainly related improving grain through high‐density planting, maize–soybean intercropping, taking advantage wild resources, utilization heterosis, genomic prediction selection precise genome editing. This review summarizes current progress directs future soybean.

Language: Английский

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