Strategies for plant-microbe symbiosis: Mycorrhizal fungi and helper bacteria to improve cold tolerance in rice

IF 6.1 2区生物学 Q1 PLANT SCIENCES

Plant Physiology and Biochemistry Pub Date : 2025-03-04 DOI:10.1016/j.plaphy.2025.109741

Feng Shi , Xue He , Meng Cao , Ruotong Wu , Bo Zhang , Tianle Xu , Mingguo Jiang , Fuqiang Song

{"title":"Strategies for plant-microbe symbiosis: Mycorrhizal fungi and helper bacteria to improve cold tolerance in rice","authors":"Feng Shi , Xue He , Meng Cao , Ruotong Wu , Bo Zhang , Tianle Xu , Mingguo Jiang , Fuqiang Song","doi":"10.1016/j.plaphy.2025.109741","DOIUrl":null,"url":null,"abstract":"<div><div>Cold stress is a limiting factor for rice yield. Empirical evidence has demonstrated that arbuscular mycorrhizal fungi (AMF) can bolster the cold resilience of plants. In barren environments, AMF can promote host plant growth and resistance. However, whether the addition of mycorrhizal helper bacteria (MHB) can further enhance AMF's ability to improve cold tolerance in plants remains unclear. In this study, we set up an uninoculated group, a separately inoculated group, and a compound inoculated group and incubated rice at 25 °C until the three-leaf stage, and then each group was equally divided into four portions for treatment at 25 °C, 12 °C, 8 °C, and 4 °C, respectively. The results showed that: (1) Under cold stress conditions, the biomass of rice plants inoculated with AMF was significantly higher than that of the non-inoculated group; (2) AMF and MHB effectively activated the antioxidant enzyme system in rice plants and improved their osmoregulatory capacity under cold stress; (3) The presence of AMF and MHB stimulated and modulated the upregulation of genes related to photosynthesis and cold tolerance in rice plants, thereby enhancing their resilience against cold stress. Our findings corroborate that MHB can further enhance the cold tolerance of rice by promoting the functions of AMF. This study lays the foundation for expanding rice cultivation areas, and ensuring food production security.</div></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"222 ","pages":"Article 109741"},"PeriodicalIF":6.1000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Physiology and Biochemistry","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0981942825002694","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Cold stress is a limiting factor for rice yield. Empirical evidence has demonstrated that arbuscular mycorrhizal fungi (AMF) can bolster the cold resilience of plants. In barren environments, AMF can promote host plant growth and resistance. However, whether the addition of mycorrhizal helper bacteria (MHB) can further enhance AMF's ability to improve cold tolerance in plants remains unclear. In this study, we set up an uninoculated group, a separately inoculated group, and a compound inoculated group and incubated rice at 25 °C until the three-leaf stage, and then each group was equally divided into four portions for treatment at 25 °C, 12 °C, 8 °C, and 4 °C, respectively. The results showed that: (1) Under cold stress conditions, the biomass of rice plants inoculated with AMF was significantly higher than that of the non-inoculated group; (2) AMF and MHB effectively activated the antioxidant enzyme system in rice plants and improved their osmoregulatory capacity under cold stress; (3) The presence of AMF and MHB stimulated and modulated the upregulation of genes related to photosynthesis and cold tolerance in rice plants, thereby enhancing their resilience against cold stress. Our findings corroborate that MHB can further enhance the cold tolerance of rice by promoting the functions of AMF. This study lays the foundation for expanding rice cultivation areas, and ensuring food production security.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Plant Physiology and Biochemistry 生物-植物科学

CiteScore

11.10

自引率

3.10%

发文量

410

审稿时长

33 days

期刊介绍： Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.