Activation tagging identifies WRKY14 as a repressor of plant thermomorphogenesis in Arabidopsis DOI Creative Commons
Wenqi Qin, Ning Wang, Qi Yin

et al.

Molecular Plant, Journal Year: 2022, Volume and Issue: 15(11), P. 1725 - 1743

Published: Sept. 24, 2022

Increases in recorded high temperatures around the world are causing plant thermomorphogenesis and decreasing crop productivity. PHYTOCHROME INTERACTING FACTOR 4 (PIF4) is a central positive regulator of thermomorphogenesis. However, molecular mechanisms underlying PIF4-regulated remain largely unclear. In this study, we identified ABNORMAL THERMOMORPHOGENESIS 1 (ABT1) as an important negative PIF4 Overexpression ABT1 activation tagging mutant abt1-D caused shorter hypocotyls petioles under moderately temperature (HT). encodes WRKY14, which belongs to subgroup II WRKY transcription factors. ABT1/WRKY14 or its close homologs, including ABT2/WRKY35, ABT3/WRKY65, ABT4/WRKY69in transgenic plants insensitivity HT, whereas quadruple abt1 abt2 abt3 abt4 exhibited greater sensitivity HT. ABTs were expressed hypocotyls, cotyledons, shoot apical meristems, leaves, but their expression suppressed by Biochemical assays showed that can interact with TCP5, known PIF4, interrupt formation TCP5-PIF4 complex repress transcriptional activity. Genetic analysis functioned antagonistically BZR1, Taken together, our results identify critical repressor suggest ABT1/WRKY14, may form sophisticated regulatory module fine-tune activity temperature-dependent growth.

Language: Английский

The role of plant-associated rhizobacteria in plant growth, biocontrol and abiotic stress management DOI
Basharat Ahmad Bhat, Lubna Tariq,

Showkat Nissar

et al.

Journal of Applied Microbiology, Journal Year: 2022, Volume and Issue: 133(5), P. 2717 - 2741

Published: Aug. 26, 2022

The rhizosphere is the region around plant roots where maximum microbial activities occur. In rhizosphere, microorganisms' beneficial and harmful affect growth development. mutualistic rhizospheric bacteria which improve health are known as growth-promoting rhizobacteria (PGPR). They very important due to their ability help in diverse ways. PGPR such Pseudomonas, Bacillus, Azospirillum, Azotobacter, Arthrobacter, Achromobacter, Micrococcus, Enterobacter, Rhizobium, Agrobacterium, Pantoea Serratia now well known. Rhizomicrobiome plays critical roles nutrient acquisition assimilation, improved soil texture, secreting modulating extracellular molecules hormones, secondary metabolites, antibiotics various signal compounds, all leading enhancement of microbes compounds they secrete constitute valuable biostimulants play pivotal stress responses. this review, we highlight diversity cutting-edge findings focusing on role a We also discussed resisting adverse effects arising from abiotic (drought, salinity, heat, heavy metals) stresses.

Language: Английский

Citations

96
A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants DOI Creative Commons
Shifa Shaffique, Muhammad Aaqil Khan, Shabir Hussain Wani

et al.

Microorganisms, Journal Year: 2022, Volume and Issue: 10(7), P. 1286 - 1286

Published: June 24, 2022

Among abiotic stresses, heat stress is described as one of the major limiting factors crop growth worldwide, high temperatures elicit a series physiological, molecular, and biochemical cascade events that ultimately result in reduced yield. There growing interest among researchers use beneficial microorganisms. Intricate highly complex interactions between plants microbes alleviation stress. Plant–microbe are mediated by production phytohormones, siderophores, gene expression, osmolytes, volatile compounds plants. Their interaction improves antioxidant activity accumulation compatible osmolytes such proline, glycine betaine, soluble sugar, trehalose, enriches nutrient status stressed Therefore, this review aims to discuss response understand mechanisms microbe-mediated on physio-molecular basis. This indicates have great potential enhance protection from plant Owing metabolic diversity microorganisms, they can be useful mitigating In regard, microorganisms do not present new threats ecological systems. Overall, it expected continued research tolerance will enable technology used an ecofriendly tool for sustainable agronomy.

Language: Английский

Citations

73
Potential applications of extremophilic bacteria in the bioremediation of extreme environments contaminated with heavy metals DOI
Jianzhong Sun,

Xing He,

Yilin Le

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 352, P. 120081 - 120081

Published: Jan. 18, 2024

Language: Английский

Citations

27
Plants and global warming: challenges and strategies for a warming world DOI

Pratyay Seth,

José Sebastián

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 43(1)

Published: Jan. 1, 2024

Language: Английский

Citations

21
Epigenetic stress memory: A new approach to study cold and heat stress responses in plants DOI Creative Commons
Muthusamy Ramakrishnan, Zhijun Zhang, Sileesh Mullasseri

et al.

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Dec. 8, 2022

Understanding plant stress memory under extreme temperatures such as cold and heat could contribute to development. Plants employ different types of memories, somatic, intergenerational transgenerational, regulated by epigenetic changes DNA histone modifications microRNAs (miRNA), playing a key role in gene regulation from early development maturity. In most cases, stresses result short-term that can return baseline modification levels after cessation. Nevertheless, some the may be stable passed on memory, potentially allowing them inherited across generations, whereas are reactivated during sexual reproduction or embryogenesis. Several stress-related genes involved inheritance turning off transcription profiles changes. Vernalization is best example somatic memory. Changes chromatin structure Flowering Locus C ( FLC ) gene, MADS-box factor (TF), maintain mitosis. expression suppresses flowering at high winter; vernalization, B3 TFs, cis -acting element polycomb repressive complex 1 2 (PRC1 2) silence activation. contrast, repression SQUAMOSA promoter-binding protein-like SPL TF activation Heat Shock HSFA2 required for However, it still unclear how offspring, integrated view regulatory mechanisms mitotic meiotic heritable plants scarce. Thus, this review, we focus discuss application new technologies developing improve

Language: Английский

Citations

40
Epigenetic Regulation During Plant Development and the Capacity for Epigenetic Memory DOI Creative Commons

Elizabeth A. Hemenway,

Mary Gehring

Annual Review of Plant Biology, Journal Year: 2023, Volume and Issue: 74(1), P. 87 - 109

Published: March 1, 2023

The establishment, maintenance, and removal of epigenetic modifications provide an additional layer regulation, beyond genetically encoded factors, by which plants can control developmental processes adapt to the environment. Epigenetic inheritance, while historically referring information not in DNA sequence that is inherited between generations, also refer are maintained within individual but reset generations. Both types inheritance occur plants, functions mechanisms distinguishing two great interest field. Here, we discuss examples dynamics maintenance during selected stages growth development their functional consequences. states dynamic response stress, with consequences for transposable element regulation. How resetting generations occurs normal stress emerging area research.

Language: Английский

Citations

32
Coordinated histone variant H2A.Z eviction and H3.3 deposition control plant thermomorphogenesis DOI
Fengyue Zhao, Mande Xue, Huairen Zhang

et al.

New Phytologist, Journal Year: 2023, Volume and Issue: 238(2), P. 750 - 764

Published: Jan. 17, 2023

Summary Plants can sense temperature changes and adjust their development morphology accordingly in a process called thermomorphogenesis. This phenotypic plasticity implies complex mechanisms regulating gene expression reprogramming response to environmental alteration. Histone variants often associate with specific chromatin states; yet, how deposition/eviction modulates transcriptional induced by cues remains elusive. In Arabidopsis thaliana , elevation‐induced activation at thermo‐responsive genes entails the eviction of histone variant H2A.Z INO80, which is recruited these loci via interacting key thermomorphogenesis regulator PIF4. Here, we show that both INO80 deposition chaperones another H3.3 ELF7, critical component transcription elongator PAF1 complex. promotes high temperature‐enhanced RNA Pol II PIF4 targets, it broadly required for removal‐induced activation. Reciprocally, ELF7 regulate deposition, are necessary temperature‐induced enrichment targets. Our findings demonstrate close coordination between temperature, pinpoint importance dynamics regulation.

Language: Английский

Citations

31
A histone deacetylase, FaSRT1‐2, plays multiple roles in regulating fruit ripening, plant growth and stresses resistance of cultivated strawberry DOI
Liangxin Wang, Yuanxiu Lin, Guoyan Hou

et al.

Plant Cell & Environment, Journal Year: 2024, Volume and Issue: 47(6), P. 2258 - 2273

Published: March 14, 2024

Abstract Sirtuins (SRTs) are a group of nicotinamide adenine dinucleotide (NAD + )‐dependent deacetylase that target both histone and nonhistone proteins. The biological function SRT in horticultural plants has been rarely studied. In this study, FaSRT1‐2 was identified as key member the 8 FaSRTs encoded cultivated strawberry genome. Transient overexpression fruit accelerated ripening, increased content anthocyanins sugars, enhanced ripening‐related gene expression. Moreover, stable transformation resulted vegetative growth, sensitivity to heat stress susceptibility Botrytis cinerea infection. Interestingly, knocking out homologous woodland had opposite effects. Additionally, we found stress‐related hormone abscisic acid (ABA) decreased, while growth‐related gibberellin (GA) concentration lines. Gene expression analysis revealed induction shock proteins, transcription factors, antioxidant genes ‐overexpressed knocked‐out impact. conclusion, our findings demonstrated could positively promote plant growth ripening by affecting ABA GA pathways. However, it negatively regulates resistance B. infection influencing related

Language: Английский

Citations

15
Epigenetic stress memory in gymnosperms DOI Creative Commons
Carl Gunnar Fossdal, Paal Krokene, Jorunn E. Olsen

et al.

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 195(2), P. 1117 - 1133

Published: Jan. 31, 2024

Abstract Gymnosperms are long-lived, cone-bearing seed plants that include some of the most ancient extant plant species. These relict land have evolved to survive in habitats marked by chronic or episodic stress. Their ability thrive these environments is partly due their phenotypic flexibility, and epigenetic regulation likely plays a crucial part this plasticity. We review current knowledge on abiotic biotic stress memory gymnosperms possible mechanisms underlying long-term adaptations. also discuss recent technological improvements new experimental possibilities will advance our understanding hard-to-study plants.

Language: Английский

Citations

11
The complex transcriptional regulation of heat stress response in maize DOI Creative Commons

Mingxiu Ruan,

Heng Zhao,

Yujing Wen

et al.

Stress Biology, Journal Year: 2024, Volume and Issue: 4(1)

Published: April 26, 2024

As one of the most important food and feed crops worldwide, maize suffers much more tremendous damages under heat stress compared to other plants, which seriously inhibits plant growth reduces productivity. To mitigate heat-induced adapt high temperature environment, plants have evolved a series molecular mechanisms sense, respond temperatures stress. In this review, we summarized recent advances in regulations underlying sensing, response memory maize, especially focusing on several pathways signals complex transcriptional regulation ZmHSFs (Heat Shock Factors) response. addition, highlighted interactions between epigenetic factors coordinately regulating memory. Finally, laid out strategies systematically elucidate regulatory network response, discussed approaches for breeding future heat-tolerance maize.

Language: Английский

Citations

10