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Yang S, Cai W, Wu R, Huang Y, Lu Q, Hui Wang, Huang X, Zhang Y, Wu Q, Cheng X, Wan M, Lv J, Liu Q, Zheng X, Mou S, Guan D, He S. Differential CaKAN3-CaHSF8 associations underlie distinct immune and heat responses under high temperature and high humidity conditions. Nat Commun 2023; 14:4477. [PMID: 37491353 PMCID: PMC10368638 DOI: 10.1038/s41467-023-40251-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 07/19/2023] [Indexed: 07/27/2023] Open
Abstract
High temperature and high humidity (HTHH) conditions increase plant susceptibility to a variety of diseases, including bacterial wilt in solanaceous plants. Some solanaceous plant cultivars have evolved mechanisms to activate HTHH-specific immunity to cope with bacterial wilt disease. However, the underlying mechanisms remain poorly understood. Here we find that CaKAN3 and CaHSF8 upregulate and physically interact with each other in nuclei under HTHH conditions without inoculation or early after inoculation with R. solanacearum in pepper. Consequently, CaKAN3 and CaHSF8 synergistically confer immunity against R. solanacearum via activating a subset of NLRs which initiates immune signaling upon perception of unidentified pathogen effectors. Intriguingly, when HTHH conditions are prolonged without pathogen attack or the temperature goes higher, CaHSF8 no longer interacts with CaKAN3. Instead, it directly upregulates a subset of HSP genes thus activating thermotolerance. Our findings highlight mechanisms controlling context-specific activation of high-temperature-specific pepper immunity and thermotolerance mediated by differential CaKAN3-CaHSF8 associations.
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Affiliation(s)
- Sheng Yang
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Weiwei Cai
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- College of Horticultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, Zhejiang, PR China
| | - Ruijie Wu
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Yu Huang
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Qiaoling Lu
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Hui Wang
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Xueying Huang
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Yapeng Zhang
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Qing Wu
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Xingge Cheng
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Meiyun Wan
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Jingang Lv
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Qian Liu
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Xiang Zheng
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Shaoliang Mou
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Deyi Guan
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Shuilin He
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China.
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China.
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3
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Fang Y, Zhou B, Guo Y, Jiang J, Li X, Xie X. Comparative transcriptome analysis reveals the core molecular network in pattern-triggered immunity in Sorghum bicolor. Int J Biol Macromol 2023:124834. [PMID: 37207754 DOI: 10.1016/j.ijbiomac.2023.124834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/21/2023]
Abstract
Pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) is the first line of defense in plant disease resistance. However, the molecular mechanisms of plant PTI vary across species, making it challenging to identify a core set of trait-associated genes. This study aimed to investigate key factors that influence PTI and identify the core molecular network in Sorghum bicolor, a C4 plant. We performed comprehensive weighted gene co-expression network analysis and temporal expression analysis of large-scale transcriptome data from various sorghum cultivars under different PAMP treatments. Our results revealed that the type of PAMP had a stronger influence on the PTI network than did the sorghum cultivar. Following PAMP treatment, 30 genes with stable downregulated expression and 158 genes with stable upregulated expression were identified, including genes encoding potential pattern recognition receptors whose expression was upregulated within 1 h of treatment. PAMP treatment altered the expression of resistance-related, signaling, salt-sensitive, heavy metal-related, and transporter genes. These findings provide novel insights into the core genes involved in plant PTI and are expected to facilitate the identification and application of resistance genes in plant breeding studies.
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Affiliation(s)
- Yuanpeng Fang
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Bingqian Zhou
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Yushan Guo
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Junmei Jiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Xin Xie
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, PR China.
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