Advances in Understanding Drought Stress Responses in Rice: Molecular Mechanisms of ABA Signaling and Breeding Prospects DOI Open Access
Yingying Ma,

Mingyue Tang,

Mingyang Wang

et al.

Genes, Journal Year: 2024, Volume and Issue: 15(12), P. 1529 - 1529

Published: Nov. 27, 2024

Drought stress is a pivotal environmental factor impacting rice production and presents significant challenge to sustainable agriculture worldwide. This review synthesizes the latest research advancements in regulatory mechanisms signaling pathways that employs response drought stress. It elaborates on adaptive changes molecular occur under conditions. The highlights perception initial transmission of signals, key downstream networks such as MAPK Ca2+ pathways, their roles modulating responses. Furthermore, discussion extends hormonal signaling, especially crucial role abscisic acid (ABA) responses, alongside identification drought-resistant genes application gene-editing technologies enhancing resilience. Through an in-depth analysis these this aims offer valuable insights guidance for future resistance breeding agricultural initiatives.

Language: Английский

ABA-auxin cascade regulates crop root angle in response to drought DOI

Yali Xiong,

Xiaoyun Song, Poonam Mehra

et al.

Current Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

5
Crop designs: The ideal root architecture for future crop breeding DOI Creative Commons
Jiaxuan Sui, Huiyu Tian, Zhaojun Ding

et al.

New Crops, Journal Year: 2024, Volume and Issue: 1, P. 100030 - 100030

Published: June 2, 2024

Root system architecture, a crucial agronomic trait for sustainable crop production, is influenced by variety of internal developmental signals and external environmental factors. In this review, we highlight recent advancements in understanding the molecular mechanisms behind root meristem maintenance, cell differentiation, lateral growth, hair development, crown formation. Additionally, explore how abiotic stresses such as drought, salinity, nitrate deficiency, aluminum toxicity impact architecture. We identify key target genes that regulate offering potential targets genome editing future improvement. Finally, discuss opportunities challenges de novo design

Language: Английский

Citations

16
Ethylene regulates auxin-mediated root gravitropic machinery and controls root angle in cereal crops DOI
Xiuzhen Kong,

Yali Xiong,

Xiaoyun Song

et al.

PLANT PHYSIOLOGY, Journal Year: 2024, Volume and Issue: 195(3), P. 1969 - 1980

Published: March 6, 2024

Abstract Root angle is a critical factor in optimizing the acquisition of essential resources from different soil depths. The regulation root relies on auxin-mediated gravitropism machinery. While influence ethylene auxin levels known, its specific role governing and remains uncertain, particularly when Arabidopsis (Arabidopsis thaliana) core signaling mutants show no gravitropic defects. Our research, focusing rice (Oryza sativa L.) maize (Zea mays), clearly reveals involvement cereal crops through modulation biosynthesis We elucidated molecular components by which exerts regulatory effect to control ethylene-insensitive insensitive2 (osein2) insensitive like1 (oseil1), exhibited substantially shallower crown compared wild type. Gravitropism assays revealed reduced response these mutants. Hormone profiling analysis confirmed decreased tips osein2 mutant, exogenous (NAA) application rescued both Additionally, biosynthetic mutant mao hu zi10 (mhz10)/tryptophan aminotransferase2 (ostar2) showed impaired shallow phenotypes. Similarly, (zmein2) defective In conclusion, our study highlights that controls auxin-dependent machinery regulate maize, revealing functional divergence between crops. These findings contribute better understanding have implications for improving resource agricultural systems.

Language: Английский

Citations

13
Ethylene Modulates Rice Root Plasticity under Abiotic Stresses DOI Creative Commons
Hua Qin,

Minggang Xiao,

Yuxiang Li

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(3), P. 432 - 432

Published: Feb. 1, 2024

Plants live in constantly changing environments that are often unfavorable or stressful. Root development strongly affects plant growth and productivity, the developmental plasticity of roots helps plants to survive under abiotic stress conditions. This review summarizes progress being made understanding regulation phtyohormone ethylene rice root response stresses, highlighting complexity associated with integration synthesis signaling adverse environments. Understanding molecular mechanisms regulating architecture environmental signals can contribute genetic improvement crop systems, enhancing their adaptation stressful

Language: Английский

Citations

9
Integrating Transcriptomics and Metabolomics to Comprehensively Analyze Phytohormone Regulatory Mechanisms in Rhododendron chrysanthum Pall. Under UV-B Radiation DOI Open Access
Yu Wang, Qi Sun, Hongwei Xu

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(4), P. 1545 - 1545

Published: Feb. 12, 2025

In order to fully elucidate the roles and systems of phytohormones in UV-B radiation (UV-B) leaves Rhododendron chrysanthum Pall. (R. chrysanthum), we conducted a comprehensive analysis how R. protects itself against using transcriptomic metabolomic data. Transcript metabolite profiles were generated by combination deep sequencing LC-MS/MS (liquid chromatography-tandem mass spectrometry), respectively. Combined with physiological biochemical assays, studied compound accumulation, biosynthesis expression signaling genes seven hormones effects on plant photosynthesis. The findings indicate that during leaf defense UV-B, photosynthesis declined, photosynthetic system was impaired concentration salicylic acid (SA) increased, whereas contents cytokinin (CK), abscisic (ABA), ethylene, auxin, jasmonic (JA) gibberellins (GAs) continued decrease. Finally, correlation tests between hormone content analyzed, closely related resistance identified pathways. These results will expand our understanding hormonal regulatory mechanisms at same time lay foundation for adversity stress.

Language: Английский

Citations

1
Precise Regulation of the TAA1/TAR-YUCCA Auxin Biosynthesis Pathway in Plants DOI Open Access
Pan Luo, Dong‐Wei Di

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(10), P. 8514 - 8514

Published: May 10, 2023

The indole-3-pyruvic acid (IPA) pathway is the main auxin biosynthesis in plant kingdom. Local control of through this regulates growth and development responses to biotic abiotic stresses. During past decades, genetic, physiological, biochemical, molecular studies have greatly advanced our understanding tryptophan-dependent biosynthesis. IPA includes two steps: Trp converted by TRYPTOPHAN AMINOTRANSFERASE OF ARABIDOPSIS/TRYPTOPHAN RELATED PROTEINs (TAA1/TARs), then IAA flavin monooxygenases (YUCCAs). regulated at multiple levels, including transcriptional post-transcriptional regulation, protein modification, feedback resulting changes gene transcription, enzyme activity localization. Ongoing research indicates that tissue-specific DNA methylation miRNA-directed regulation transcription factors may also play key roles precise IPA-dependent plants. This review will mainly summarize regulatory mechanisms address many unresolved questions regarding

Language: Английский

Citations

17
CELLULOSE SYNTHASE-LIKE C proteins modulate cell wall establishment during ethylene-mediated root growth inhibition in rice DOI Creative Commons
Yang Zhou, Yihong Gao, Baocai Zhang

et al.

The Plant Cell, Journal Year: 2024, Volume and Issue: 36(9), P. 3751 - 3769

Published: June 29, 2024

Abstract The cell wall shapes plant morphogenesis and affects the plasticity of organ growth. However, way in which establishment is regulated by ethylene remains largely elusive. Here, analyzing patterns, composition gene expression rice (Oryza sativa, L.) roots, we found that induces thickening synthesis-related genes, including CELLULOSE SYNTHASE-LIKE C1, 2, 7, 9, 10 (OsCSLC1, 10) SYNTHASE A3, 4, 9 (OsCESA3, 9). Overexpression mutant analyses revealed OsCSLC2 its homologs function ethylene-mediated induction xyloglucan biosynthesis mainly root epidermal cells. Moreover, OsCESA-catalyzed cellulose deposition was enhanced ethylene. OsCSLC-mediated likely plays an important role restricting extension elongation during response roots. Genetically, acts downstream ETHYLENE-INSENSITIVE3-LIKE1 (OsEIL1)-mediated signaling, OsCSLC1, are directly activated OsEIL1. Furthermore, auxin signaling pathway synergistically involved these regulatory processes. These findings link hormone with establishment, broadening our understanding growth other crops.

Language: Английский

Citations

7
OsEIN2‐OsEIL1/2 pathway negatively regulates chilling tolerance by attenuating OsICE1 function in rice DOI

Mingjuan Zhai,

Yating Chen,

Xiaowu Pan

et al.

Plant Cell & Environment, Journal Year: 2024, Volume and Issue: 47(7), P. 2559 - 2575

Published: March 22, 2024

Low temperature severely affects rice development and yield. Ethylene signal is essential for plant stress response. Here, we reported that the OsEIN2-OsEIL1/2 pathway reduced OsICE1-dependent chilling tolerance in rice. The overexpressing plants of OsEIN2, OsEIL1 OsEIL2 exhibited severe symptoms with excessive reactive oxygen species (ROS) accumulation under chilling, while mutants (osein2 oseil1) OsEIL2-RNA interference (OsEIL2-Ri) showed enhanced tolerance. We validated could form a heterxodimer synergistically repressed OsICE1 expression by binding to its promoter. target genes, ROS scavenging- photosynthesis-related genes were downregulated OsEIN2 OsEIL1/2, which activated OsICE1, suggesting might mediate photosynthetic capacity attenuating function. Moreover, association analysis seedling haplotype lower caused natural variation confer on seedlings. Finally, generated OsEIL2-edited an Taken together, our findings reveal possible mechanism integrating cascade regulating tolerance, providing practical strategy breeding chilling-tolerant

Language: Английский

Citations

4
A translational regulator MHZ9 modulates ethylene signaling in rice DOI Creative Commons
Yi‐Hua Huang,

Jiaqi Han,

Biao Ma

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Aug. 4, 2023

Ethylene plays essential roles in rice growth, development and stress adaptation. Translational control of ethylene signaling remains unclear rice. Here, through analysis an ethylene-response mutant mhz9, we identified a glycine-tyrosine-phenylalanine (GYF) domain protein MHZ9, which positively regulates at translational level MHZ9 is localized RNA processing bodies. The C-terminal interacts with OsEIN2, central regulator signaling, the N-terminal directly binds to OsEBF1/2 mRNAs for inhibition, allowing accumulation transcription factor OsEIL1 activate downstream signaling. RNA-IP seq CLIP-seq analyses reveal that associates hundreds RNAs. Ribo-seq indicates required regulation ~ 90% genes translationally affected by ethylene. Our study identifies mediates response ethylene, facilitating adaptation trait improvement

Language: Английский

Citations

11
Crosstalk Between Ethylene and JA/ABA/Sugar Signalling in Plants Under Physiological and Stress Conditions DOI Creative Commons

Yi-Bo Wang,

Yali Zou,

Yuting Wei

et al.

Molecular Plant Pathology, Journal Year: 2025, Volume and Issue: 26(3)

Published: March 1, 2025

Growth, development and defence responses of plants are governed through signalling networks that connect inputs from nutrient status, hormone cues environmental signals. Plant hormones as endogenous signals essential for modulating plant developmental processes. Ethylene (ET), a gaseous hormone, is widely established regulator these Over the last two decades, substantial research reports have revealed interaction between ET other cues, including abscisic acid (ABA), sugars jasmonates (JAs). However, showed numerous conflicting or contrasting conclusions. For example, some ABA/sugar/JA synergistically regulate growth, responses, whereas demonstrated antagonistically modulate This suggests crosstalk JA/ABA/sugar very complex, is, can function either coordinately, dependent on given biological process (e.g., under physiological stress conditions). Further analysis found whether synergistic antagonistic actions exist determined by induction/inhibition their respective master transcription factors in pathways. We here summarise most recent advances outstanding questions and/or challenges area conditions.

Language: Английский

Citations

0