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Myers RJ, Peláez-Vico MÁ, Fichman Y. Functional analysis of reactive oxygen species-driven stress systemic signalling, interplay and acclimation. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38515255 DOI: 10.1111/pce.14894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/13/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
Reactive oxygen species (ROS) play a critical role in plant development and stress responses, acting as key components in rapid signalling pathways. The 'ROS wave' triggers essential acclimation processes, ultimately ensuring plant survival under diverse challenges. This review explores recent advances in understanding the composition and functionality of the ROS wave within plant cells. During their initiation and propagation, ROS waves interact with other rapid signalling pathways, hormones and various molecular compounds. Recent research sheds light on the intriguing lack of a rigid hierarchy governing these interactions, highlighting a complex interplay between diverse signals. Notably, ROS waves culminate in systemic acclimation, a crucial outcome for enhanced stress tolerance. This review emphasizes the versatility of ROS, which act as flexible players within a network of short- and long-term factors contributing to plant stress resilience. Unveiling the intricacies of these interactions between ROS and various signalling molecules holds immense potential for developing strategies to augment plant stress tolerance, contributing to improved agricultural practices and overall ecosystem well-being.
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Affiliation(s)
- Ronald J Myers
- Division of Plant Sciences and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - María Ángeles Peláez-Vico
- Division of Plant Sciences and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Yosef Fichman
- Division of Plant Sciences and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
- School of Plant Sciences and Food Security, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
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Zhou S, Lin Y, Cai Y, Li L, Yao X, Sun K, Song Q, Zhang Q. The response of rhubarb to smut infection is revealed through a comparative transcriptome and metabolome study. PLANTA 2023; 259:27. [PMID: 38112830 DOI: 10.1007/s00425-023-04306-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023]
Abstract
MAIN CONCLUSION Integrated transcriptome and metabolome analysis have unveiled the physiological and molecular responses of rhubarb to infection by smut fungi. Rhubarb is an important medicinal plant that is easily infected by smut fungi during its growth. Thus far, no research on the influence of smut fungi on the growth of rhubarb and its secondary metabolism has been conducted. In this study, petioles of Chinese rhubarb (Rheum officinale) [healthy or infected with smut fungus (Thecaphora schwarzmaniana)] were characterized. Microscopic structure, global gene expression profiling, global metabolic profiling, and key enzyme activity and metabolite levels in infected plants were analyzed. Infection by smut fungi resulted in numerous holes inside the petiole tissue and led to visible tumors on the external surface of the petiole. Through metabolic changes, T. schwarzmaniana induced the production of specific sugars, lipids, and amino acids, and inhibited the metabolism of phenolics and flavonoids in R. officinale. The concentrations of key medicinal compounds (anthraquinones) were decreased because of smut fungus infection. In terms of gene expression, the presence of T. schwarzmaniana led to upregulation of the genes associated with nutrient (sugar, amino acid, etc.) transport and metabolism. The gene expression profiling showed a stimulated cell division activity (the basis of tumor formation). Although plant antioxidative response was enhanced, the plant defense response against pathogen was suppressed by T. schwarzmaniana, as indicated by the expression profiling of genes involved in biotic and abiotic stress-related hormone signaling and the synthesis of plant disease resistance proteins. This study demonstrated physiological and molecular changes in R. officinale under T. schwarzmaniana infection, reflecting the survival tactics employed by smut fungus for parasitizing rhubarb.
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Affiliation(s)
- Shuangshuang Zhou
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Nanchuan Institute of Traditional Chinese Medicinal Plants, Chongqing, 408407, China
| | - Ya Lin
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Nanchuan Institute of Traditional Chinese Medicinal Plants, Chongqing, 408407, China
| | - Yu Cai
- Chongqing Nanchuan Institute of Traditional Chinese Medicinal Plants, Chongqing, 408407, China
| | - Linfang Li
- Teaching and research group of biology, Kunming No.8 High School, Kunming, China
| | - Xiaohui Yao
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Teaching and research group of biology, Hohhot 35th Middle School, Hohhot, China
| | - Kuan Sun
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Qin Song
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Qingwei Zhang
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China.
- Chongqing Nanchuan Institute of Traditional Chinese Medicinal Plants, Chongqing, 408407, China.
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Erokhin D, Popletaeva S, Sinelnikov I, Rozhkova A, Shcherbakova L, Dzhavakhiya V. Some Structural Elements of Bacterial Protein MF3 That Influence Its Ability to Induce Plant Resistance to Fungi, Viruses, and Other Plant Pathogens. Int J Mol Sci 2023; 24:16374. [PMID: 38003563 PMCID: PMC10671687 DOI: 10.3390/ijms242216374] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
The ability of the MF3 protein from Pseudomonas fluorescens to protect plants by inducing their resistance to pathogenic fungi, bacteria, and viruses is well confirmed both in greenhouses and in the field; however, the molecular basis of this phenomenon remains unexplored. To find a relationship between the primary (and spatial) structure of the protein and its target activity, we analyzed the inducing activity of a set of mutants generated by alanine scanning and an alpha-helix deletion (ahD) in the part of the MF3 molecule previously identified by our group as a 29-amino-acid peptide working as the inducer on its own. Testing the mutants' inducing activity using the "tobacco-tobacco mosaic virus" pathosystem revealed that some of them showed an almost threefold (V60A and V62A) or twofold (G51A, L58A, ahD) reduction in inducing activity compared to the wild-type MF3 type. Interestingly, these mutations demonstrated close proximity in the homology model, probably contributing to MF3 reception in a host plant.
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Affiliation(s)
- Denis Erokhin
- All-Russian Research Institute of Phytopathology, 143050 Bolshie Vyazemy, Russia; (D.E.); (S.P.); (V.D.)
| | - Sophya Popletaeva
- All-Russian Research Institute of Phytopathology, 143050 Bolshie Vyazemy, Russia; (D.E.); (S.P.); (V.D.)
| | - Igor Sinelnikov
- Federal Research Centre “Fundamentals of Biotechnology”, Russian Academy of Sciences, 119991 Moscow, Russia; (I.S.); (A.R.)
| | - Alexandra Rozhkova
- Federal Research Centre “Fundamentals of Biotechnology”, Russian Academy of Sciences, 119991 Moscow, Russia; (I.S.); (A.R.)
| | - Larisa Shcherbakova
- All-Russian Research Institute of Phytopathology, 143050 Bolshie Vyazemy, Russia; (D.E.); (S.P.); (V.D.)
| | - Vitaly Dzhavakhiya
- All-Russian Research Institute of Phytopathology, 143050 Bolshie Vyazemy, Russia; (D.E.); (S.P.); (V.D.)
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