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An Z, Yang Z, Zhou Y, Huo S, Zhang S, Wu D, Shu X, Wang Y. OsJRL negatively regulates rice cold tolerance via interfering phenylalanine metabolism and flavonoid biosynthesis. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38884189 DOI: 10.1111/pce.15005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/24/2024] [Accepted: 06/06/2024] [Indexed: 06/18/2024]
Abstract
The identification of new genes involved in regulating cold tolerance in rice is urgent because low temperatures repress plant growth and reduce yields. Cold tolerance is controlled by multiple loci and involves a complex regulatory network. Here, we show that rice jacalin-related lectin (OsJRL) modulates cold tolerance in rice. The loss of OsJRL gene functions increased phenylalanine metabolism and flavonoid biosynthesis under cold stress. The OsJRL knock-out (KO) lines had higher phenylalanine ammonia-lyase (PAL) activity and greater flavonoid accumulation than the wild-type rice, Nipponbare (NIP), under cold stress. The leaves had lower levels of reactive oxygen species (ROS) and showed significantly enhanced cold tolerance compared to NIP. In contrast, the OsJRL overexpression (OE) lines had higher levels of ROS accumulation and showed lower cold tolerance than NIP. Additionally, the OsJRL KO lines accumulated more abscisic acid (ABA) and jasmonic acid (JA) under cold stress than NIP. The OsJRL OE lines showed increased sensitivity to ABA compared to NIP. We conclude that OsJRL negatively regulates the cold tolerance of rice via modulation of phenylalanine metabolism and flavonoid biosynthesis.
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Affiliation(s)
- Zengxu An
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
- Institute of Rural Development, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zihan Yang
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
- Hainan Institute, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, China
| | - Yi Zhou
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
- Hainan Institute, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, China
| | - Shaojie Huo
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
- Hainan Institute, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, China
| | - Siyan Zhang
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
| | - Dianxing Wu
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
- Hainan Institute, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, China
| | - Xiaoli Shu
- State Key Laboratory of Rice Biology and Key Lab of the Ministry of Agriculture for Nuclear Agricultural Sciences, Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, China
- Hainan Institute, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, China
| | - Yin Wang
- Institute of Rural Development, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Zhang Y, Zhao Z, Liu Z, Yao J, Yin K, Yan C, Zhang Y, Liu J, Li J, Zhao N, Zhao R, Zhou X, Chen S. Populus euphratica PeNADP-ME interacts with PePLDδ to mediate sodium and ROS homeostasis under salinity stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108600. [PMID: 38593488 DOI: 10.1016/j.plaphy.2024.108600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/16/2024] [Accepted: 04/03/2024] [Indexed: 04/11/2024]
Abstract
Populus euphratica phospholipase Dδ (PePLDδ) is transcriptionally regulated and mediates reactive oxygen species (ROS) and ion homeostasis under saline conditions. The purpose of this study is to explore the post-transcriptional regulation of PePLDδ in response to salt environment. P. euphratica PePLDδ was shown to interact with the NADP-dependent malic enzyme (NADP-ME) by screening the yeast two-hybrid libraries. The transcription level of PeNADP-ME increased upon salt exposure to NaCl (200 mM) in leaves and roots of P. euphratica. PeNADP-ME had a similar subcellular location with PePLDδ in the cytoplasm, and the interaction between PeNADP-ME and PePLDδ was further verified by GST pull-down and yeast two-hybrid. To clarify whether PeNADP-ME interacts with PePLDδ to enhance salt tolerance, PePLDδ and PeNADP-ME were overexpressed singly or doubly in Arabidopsis thaliana. Dual overexpression of PeNADP-ME and PePLDδ resulted in an even more pronounced improvement in salt tolerance compared with single transformants overexpressing PeNADP-ME or PePLDδ alone. Greater Na+ limitation and Na+ efflux in roots were observed in doubly overexpressed plants compared with singly overexpressed plants with PeNADP-ME or PePLDδ. Furthermore, NaCl stimulation of SOD, APX, and POD activity and transcription were more remarkable in the doubly overexpressed plants. It is noteworthy that the enzymic activity of NADP-ME and PLD, and total phosphatidic acid (PA) concentrations were significantly higher in the double-overexpressed plants than in the single transformants. We conclude that PeNADP-ME interacts with PePLDδ in Arabidopsis to promote PLD-derived PA signaling, conferring Na+ extrusion and ROS scavenging under salt stress.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Ziyan Zhao
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Zhe Liu
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Jun Yao
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, 510520, China
| | - Kexin Yin
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Caixia Yan
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Yanli Zhang
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Jian Liu
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Jing Li
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Nan Zhao
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Rui Zhao
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Xiaoyang Zhou
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Shaoliang Chen
- State Key Laboratory of Efficient Production of Forest Resources, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing, 100083, China.
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Quan X, Meng C, Xie C, Sun H, Xu B, Santos Bermudez R, He W. Genome-Wide and Transcriptome Analysis of Jacalin-Related Lectin Genes in Barley and the Functional Characterization of HvHorcH in Low-Nitrogen Tolerance in Arabidopsis. Int J Mol Sci 2023; 24:16641. [PMID: 38068963 PMCID: PMC10706597 DOI: 10.3390/ijms242316641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/15/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
The jacalin-related lectins (JRLs) are widely distributed in plants and are involved in plant development and multiple stress responses. However, the characteristics of the HvJRL gene family at the genome-wide level and the roles of JRLs in barley's response to low-nitrogen (LN) stress have been rarely reported. In this study, 32 HvJRL genes were identified and unevenly distributed at both ends of the seven chromosomes in barley. HvJRL proteins generally exhibited low sequence similarity but shared conserved jacalin domains by multiple sequence analysis. These proteins were classified into seven subfamilies based on phylogenetic analysis, with a similar gene structure and conserved motifs in the same subfamily. The HvJRL promoters contained a large number of diverse cis-elements associated with hormonal response and stress regulation. Based on the phylogenetic relationships and functionally known JRL homologs, it was predicted that some HvJRLs have the potential to serve functions in multiple stress responses but not nutrition deficiency stress. Subsequently, nine differentially expressed genes (DEGs) encoding eight HvJRL proteins were identified in two barley genotypes with different LN tolerance by transcriptome analysis. Furthermore, 35S:HvHorcH transgenic Arabidopsis seedlings did enhance LN tolerance, which indicated that HvHorcH may be an important regulator of LN stress response (LNSR). The HvJRL DEGs identified herein could provide new candidate genes for LN tolerance studies.
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Affiliation(s)
- Xiaoyan Quan
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | | | | | | | | | | | - Wenxing He
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
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Gao Q, Yin X, Wang F, Zhang C, Xiao F, Wang H, Hu S, Liu W, Zhou S, Chen L, Dai X, Liang M. Jacalin-related lectin 45 (OsJRL45) isolated from 'sea rice 86' enhances rice salt tolerance at the seedling and reproductive stages. BMC PLANT BIOLOGY 2023; 23:553. [PMID: 37940897 PMCID: PMC10634080 DOI: 10.1186/s12870-023-04533-z] [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: 09/28/2022] [Accepted: 10/17/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Rice (Oryza sativa L.) is one of the most widely cultivated grain crops in the world that meets the caloric needs of more than half the world's population. Salt stress seriously affects rice production and threatens food security. Therefore, mining salt tolerance genes in salt-tolerant germplasm and elucidating their molecular mechanisms in rice are necessary for the breeding of salt tolerant cultivars. RESULTS In this study, a salt stress-responsive jacalin-related lectin (JRL) family gene, OsJRL45, was identified in the salt-tolerant rice variety 'sea rice 86' (SR86). OsJRL45 showed high expression level in leaves, and the corresponding protein mainly localized to the endoplasmic reticulum. The knockout mutant and overexpression lines of OsJRL45 revealed that OsJRL45 positively regulates the salt tolerance of rice plants at all growth stages. Compared with the wild type (WT), the OsJRL45 overexpression lines showed greater salt tolerance at the reproductive stage, and significantly higher seed setting rate and 1,000-grain weight. Moreover, OsJRL45 expression significantly improved the salt-resistant ability and yield of a salt-sensitive indica cultivar, L6-23. Furthermore, OsJRL45 enhanced the antioxidant capacity of rice plants and facilitated the maintenance of Na+-K+ homeostasis under salt stress conditions. Five proteins associated with OsJRL45 were screened by transcriptome and interaction network analysis, of which one, the transmembrane transporter Os10g0210500 affects the salt tolerance of rice by regulating ion transport-, salt stress-, and hormone-responsive proteins. CONCLUSIONS The OsJRL45 gene isolated from SR86 positively regulated the salt tolerance of rice plants at all growth stages, and significantly increased the yield of salt-sensitive rice cultivar under NaCl treatment. OsJRL45 increased the activity of antioxidant enzyme of rice and regulated Na+/K+ dynamic equilibrium under salinity conditions. Our data suggest that OsJRL45 may improve the salt tolerance of rice by mediating the expression of ion transport-, salt stress response-, and hormone response-related genes.
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Affiliation(s)
- Qinmei Gao
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
- College of Chemistry and Chemical Engineering, Jishou University, Hunan, 416000, China
| | - Xiaolin Yin
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Feng Wang
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Congzhi Zhang
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Feicui Xiao
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Hongyan Wang
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Shuchang Hu
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Weihao Liu
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Shiqi Zhou
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Liangbi Chen
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Xiaojun Dai
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China.
| | - Manzhong Liang
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China.
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Gao Q, Yin X, Wang F, Hu S, Liu W, Chen L, Dai X, Liang M. OsJRL40, a Jacalin-Related Lectin Gene, Promotes Salt Stress Tolerance in Rice. Int J Mol Sci 2023; 24:ijms24087441. [PMID: 37108614 PMCID: PMC10138497 DOI: 10.3390/ijms24087441] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
High salinity is a major stress factor affecting the quality and productivity of rice (Oryza sativa L.). Although numerous salt tolerance-related genes have been identified in rice, their molecular mechanisms remain unknown. Here, we report that OsJRL40, a jacalin-related lectin gene, confers remarkable salt tolerance in rice. The loss of function of OsJRL40 increased sensitivity to salt stress in rice, whereas its overexpression enhanced salt tolerance at the seedling stage and during reproductive growth. β-glucuronidase (GUS) reporter assays indicated that OsJRL40 is expressed to higher levels in roots and internodes than in other tissues, and subcellular localization analysis revealed that the OsJRL40 protein localizes to the cytoplasm. Further molecular analyses showed that OsJRL40 enhances antioxidant enzyme activities and regulates Na+-K+ homeostasis under salt stress. RNA-seq analysis revealed that OsJRL40 regulates salt tolerance in rice by controlling the expression of genes encoding Na+/K+ transporters, salt-responsive transcription factors, and other salt response-related proteins. Overall, this study provides a scientific basis for an in-depth investigation of the salt tolerance mechanism in rice and could guide the breeding of salt-tolerant rice cultivars.
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Affiliation(s)
- Qinmei Gao
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Xiaolin Yin
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Feng Wang
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Shuchang Hu
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Weihao Liu
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Liangbi Chen
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Xiaojun Dai
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
| | - Manzhong Liang
- Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, Hunan Normal University, Changsha 410081, China
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Chen M, She Z, Aslam M, Liu T, Wang Z, Qi J, Niu X. Genomic insights of the WRKY genes in kenaf ( Hibiscus cannabinus L.) reveal that HcWRKY44 improves the plant's tolerance to the salinity stress. FRONTIERS IN PLANT SCIENCE 2022; 13:984233. [PMID: 36061791 PMCID: PMC9433988 DOI: 10.3389/fpls.2022.984233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
The WRKY transcription factors (TFs) are among the most diverse TF families of plants. They are implicated in various processes related to plant growth and stress response. Kenaf (Hibiscus cannabinus L.), an important fiber crop, has many applications, including the phytoremediation of saline-alkaline soil. However, the roles of WRKY TFs in kenaf are rarely studied. In the present study, 46 kenaf WRKY genes were genome-widely identified and characterized by gene structure, phylogeny and expression pattern analysis. Furthermore, the HcWRKY44 gene was functionally characterized in Arabidopsis under salinity and drought stresses. HcWRKY44 is a nuclear-localized protein that is positively induced by salinity and drought, with roots showing maximum accumulation of its transcripts. Under NaCl and abscisic acid (ABA) stress conditions, plants overexpressing HcWRKY44 had higher germination rates, better root growth and increased survival than control plants; however, it did not improve the ability to withstand drought stress. Moreover, ABA signaling genes (ABI1, ABI2, and ABI5), ABA-responsive genes (ABF4, RD29B, COR15A, COR47, and RD22), stress-related genes (STZ, P5CS, and KIN1), and ionic homeostasis-related genes (SOS1, AHA1, AHA2, and HKT1) were positively induced in HcWRKY44 transgenic plants under NaCl treatment. These results suggest that HcWRKY44 improved plant's tolerance to salt stress but not osmotic stress through an ABA-mediated pathway. In summary, this study provides provided comprehensive information about HcWRKY genes and revealed that HcWRKY44 is involved in salinity tolerance and ABA signaling.
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Affiliation(s)
- Meixia Chen
- Industry and University Research Cooperation Demonstration Base in Fujian Province, College of Life Sciences, Ningde Normal University, Ningde, China
| | - Zeyuan She
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning, China
| | - Mohammad Aslam
- College of Life Science, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ting Liu
- Industry and University Research Cooperation Demonstration Base in Fujian Province, College of Life Sciences, Ningde Normal University, Ningde, China
- College of Life Science, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zerong Wang
- Industry and University Research Cooperation Demonstration Base in Fujian Province, College of Life Sciences, Ningde Normal University, Ningde, China
- College of Life Science, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jianmin Qi
- College of Life Science, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xiaoping Niu
- College of Life Science, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, China
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Yue JY, Wang YJ, Jiao JL, Wang WW, Wang HZ. The Metacaspase TaMCA-Id Negatively Regulates Salt-Induced Programmed Cell Death and Functionally Links With Autophagy in Wheat. FRONTIERS IN PLANT SCIENCE 2022; 13:904933. [PMID: 35812918 PMCID: PMC9260269 DOI: 10.3389/fpls.2022.904933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Metacaspases (MCAs), a family of caspase-like proteins, are important regulators of programmed cell death (PCD) in plant defense response. Autophagy is an important regulator of PCD. This study explored the underlying mechanism of the interaction among PCD, MCAs, and autophagy and their impact on wheat response to salt stress. In this study, the wheat salt-responsive gene TaMCA-Id was identified. The open reading frame (ORF) of TaMCA-Id was 1,071 bp, coding 356 amino acids. The predicted molecular weight and isoelectric point were 38,337.03 Da and 8.45, respectively. TaMCA-Id had classic characteristics of type I MCAs domains, a typical N-terminal pro-domain rich in proline. TaMCA-Id was mainly localized in the chloroplast and exhibited nucleocytoplasmictrafficking under NaCl treatment. Increased expression of TaMCA-Id in wheat seedling roots and leaves was triggered by 150 mM NaCl treatment. Silencing of TaMCA-Id enhanced sensitivity of wheat seedlings to NaCl stress. Under NaCl stress, TaMCA-Id-silenced seedlings exhibited a reduction in activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), higher accumulation of H2O2 and O 2 . - , more serious injury to photosystem II (PSII), increase in PCD level, and autophagy activity in leaves of wheat seedlings. These results indicated that TaMCA-Id functioned in PCD through interacting with autophagy under NaCl stress, which could be used to improve the salt tolerance of crop plants.
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Zhang Y, Yao J, Yin K, Liu Z, Zhang Y, Deng C, Liu J, Zhang Y, Hou S, Zhang H, Yu D, Zhao N, Zhao R, Chen S. Populus euphratica Phospholipase Dδ Increases Salt Tolerance by Regulating K +/Na + and ROS Homeostasis in Arabidopsis. Int J Mol Sci 2022; 23:ijms23094911. [PMID: 35563299 PMCID: PMC9105705 DOI: 10.3390/ijms23094911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022] Open
Abstract
Phospholipase Dα (PLDα), which produces signaling molecules phosphatidic acid (PA), has been shown to play a critical role in plants adapting to salt environments. However, it is unclear whether phospholipase Dδ (PLDδ) can mediate the salt response in higher plants. PePLDδ was isolated from salt-resistant Populus euphratica and transferred to Arabidopsis thaliana to testify the salt tolerance of transgenic plants. The NaCl treatment (130 mM) reduced the root growth and whole-plant fresh weight of wild-type (WT) A. thaliana, vector controls (VC) and PePLDδ-overexpressed lines, although a less pronounced effect was observed in transgenic plants. Under salt treatment, PePLDδ-transgenic Arabidopsis exhibited lower electrolyte leakage, malondialdehyde content and H2O2 levels than WT and VC, resulting from the activated antioxidant enzymes and upregulated transcripts of genes encoding superoxide dismutase, ascorbic acid peroxidase and peroxidase. In addition, PePLDδ-overexpressed plants increased the transcription of genes encoding the plasma membrane Na+/H+ antiporter (AtSOS1) and H+-ATPase (AtAHA2), which enabled transgenic plants to proceed with Na+ extrusion and reduce K+ loss under salinity. The capacity to regulate reactive oxygen species (ROS) and K+/Na+ homeostasis was associated with the abundance of specific PA species in plants overexpressing PePLDδ. PePLDδ-transgenic plants retained a typically higher abundance of PA species, 34:2 (16:0–18:2), 34:3 (16:0–18:3), 36:4 (18:2–18:2), 36:5 (18:2–18:3) and 36:6 (18:3–18:3), under control and saline conditions. It is noteworthy that PA species 34:2 (16:0–18:2), 34:3 (16:0–18:3), 36:4 (18:2–18:2) and 36:5 (18:2–18:3) markedly increased in response to NaCl in transgenic plants. In conclusion, we suppose that PePLDδ-derived PA enhanced the salinity tolerance by regulating ROS and K+/Na+ homeostasis in Arabidopsis.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Jun Yao
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, China;
| | - Kexin Yin
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Zhe Liu
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Yanli Zhang
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Chen Deng
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Jian Liu
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Yinan Zhang
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
- Forestry Institute of New Technology, Chinese Academy of Forestry, Beijing 100091, China
| | - Siyuan Hou
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Huilong Zhang
- Research Center of Saline and Alkali Land of National Forestry and Grassland Administration, Chinese Academy of Forestry, Beijing 100091, China;
| | - Dade Yu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Science, Beijing 100700, China;
| | - Nan Zhao
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Rui Zhao
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
| | - Shaoliang Chen
- Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (K.Y.); (Z.L.); (Y.Z.); (C.D.); (J.L.); (Y.Z.); (S.H.); (N.Z.); (R.Z.)
- Correspondence: ; Tel.: +86-10-6233-8129
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9
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Liang XD, Shalapy M, Zhao SF, Liu JH, Wang JY. A stress-responsive transcription factor PeNAC1 regulating beta-D-glucan biosynthetic genes enhances salt tolerance in oat. PLANTA 2021; 254:130. [PMID: 34817644 DOI: 10.1007/s00425-021-03770-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
A Populus euphratica NAC gene regulates (1,3; 1,4)-β-D-glucan content in oat developing seed and improves the spikelet number and grain number per spike in transgenic oat under salinity conditions Salinity is the major factor affecting the production and quality of oat, and improving oat salt tolerance to increase yield and quality is vital. (1,3;1,4)-β-D-glucan in Gramineae is the key component in response to various environmental signals, and it is the most important functional ingredient in oat grain. The NAC transcription factors are important candidate genes used in genetic engineering to improve plant abiotic stress tolerance. In this study, we introduced Populus euphratica PeNAC1, controlled by its own promoter, into hexaploid cultivated oat and produced six transgenic lines. Compared to the non-transgenic control, the expression of PeNAC1 significantly improved the seed germination rate, seedling survival rate, and leaf chlorophyll content in the transgenic plants under salt stress. These physiological changes increased the spikelet number and grain number per spike in the transgenic oat under salinity conditions and reduced the yield loss per plant. The results indicated that the heterologous expression of PeNAC1 plays an effective role in improving the salt tolerance in transgenic oat. In addition, overexpressing PeNAC1 significantly increased the (1,3;1,4)-β-D-glucan content as well as the expression level of the (1,3;1,4)-β-D-glucan biosynthetic genes AsCslF3, AsCslF6, and AsCslF9 in the transgenic lines under salt stress, which suggested that PeNAC1 regulates the synthesis of (1,3;1,4)-β-D-glucan. Our research should assist in the discovery of the diverse action modes of NAC proteins, while PeNAC1 will be useful for improving the salt tolerance and quality of oat through molecular breeding.
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Affiliation(s)
- Xiao-Dong Liang
- XinJiang Academy of Agricultural Sciences Grain Crops Institute, No. 403 Nanchang Road, Urumqi, 830091, China
- Biotechnology Research Institute of Chinese Academy of Agricultural Sciences, No. 12 Zhong Guan Cun South Street, Beijing, 100081, China
| | - Mohamed Shalapy
- XinJiang Academy of Agricultural Sciences Grain Crops Institute, No. 403 Nanchang Road, Urumqi, 830091, China
| | - Shi-Feng Zhao
- Zhangjiakou Academy of Agricultural Sciences, Zhangjiakou, 075000, China
| | - Jing-Hui Liu
- Inner Mongolia Agriculture University, No. 275 Xue Yuan East Street, Hohhot, 010019, China.
| | - Jun-Ying Wang
- XinJiang Academy of Agricultural Sciences Grain Crops Institute, No. 403 Nanchang Road, Urumqi, 830091, China.
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10
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Zhang Y, Sun Y, Liu X, Deng J, Yao J, Zhang Y, Deng S, Zhang H, Zhao N, Li J, Zhou X, Zhao R, Chen S. Populus euphratica Apyrases Increase Drought Tolerance by Modulating Stomatal Aperture in Arabidopsis. Int J Mol Sci 2021; 22:ijms22189892. [PMID: 34576057 PMCID: PMC8468604 DOI: 10.3390/ijms22189892] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 11/16/2022] Open
Abstract
Stomatal regulation is crucial to reduce water consumption under drought conditions. Extracellular ATP (eATP) serves as a signaling agent in stomatal regulation; however, it is less known whether the eATP mediation of stomatal aperture is linked to apyrases (APYs), the principal enzymes that control the concentration of eATP. To clarify the role of APYs in stomatal control, PeAPY1 and PeAPY2 were isolated from Populus euphratica and transferred into Arabidopsis. Compared with the wild-type Arabidopsis and loss-of-function mutants (Atapy1 and Atapy2), PeAPY1- and PeAPY2-transgenic plants decreased stomatal aperture under mannitol treatment (200 mM, 2 h) and reduced water loss during air exposure (90 min). The role of apyrase in stomatal regulation resulted from its control in eATP-regulated stomatal movements and increased stomatal sensitivity to ABA. The bi-phasic dose-responses to applied nucleotides, i.e., the low ATP (0.3-1.0 mM)-promoted opening and high ATP (>2.0 mM)-promoted closure, were both restricted by P. euphratica apyrases. It is noteworthy that eATP at a low concentration (0.3 mM) counteracted ABA action in the regulation of stomatal aperture, while overexpression of PeAPY1 or PeAPY2 effectively diminished eATP promotion in opening, and consequently enhanced ABA action in closure. We postulate a speculative model of apyrase signaling in eATP- and ABA-regulated stomatal movements under drought.
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Affiliation(s)
- Yanli Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Yuanling Sun
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Xiaojing Liu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Jiayin Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Jun Yao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Yinan Zhang
- Forestry Institute of New Technology, Chinese Academy of Forestry, Beijing 100091, China;
| | - Shurong Deng
- State Key Laboratory of Tree Genetics and Breeding, The Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;
| | - Huilong Zhang
- Research Center of Saline and Alkali Land of National Forestry and Grassland Administration, Chinese Academy of Forestry, Beijing 100091, China;
| | - Nan Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Jinke Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Xiaoyang Zhou
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Rui Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
| | - Shaoliang Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (Y.Z.); (Y.S.); (X.L.); (J.D.); (J.Y.); (N.Z.); (J.L.); (X.Z.); (R.Z.)
- Correspondence: ; Tel.: +86-10-6233-8129
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11
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Transcriptome analysis of upland cotton revealed novel pathways to scavenge reactive oxygen species (ROS) responding to Na 2SO 4 tolerance. Sci Rep 2021; 11:8670. [PMID: 33883626 PMCID: PMC8060397 DOI: 10.1038/s41598-021-87999-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 03/23/2021] [Indexed: 02/02/2023] Open
Abstract
Salinity is an extensive and adverse environmental stress to crop plants across the globe, and a major abiotic constraint responsible for limited crop production threatening the crop security. Soil salinization is a widespread problem across the globe, threatening the crop production and food security. Salinity impairs plant growth and development via reduction in osmotic potential, cytotoxicity due to excessive uptake of ions such as sodium (Na+) and chloride (Cl-), and nutritional imbalance. Cotton, being the most cultivated crop on saline-alkaline soils, it is of great importance to elucidate the mechanisms involved in Na2SO4 tolerance which is still lacking in upland cotton. Zhong 9835, a Na2SO4 resistant cultivar was screened for transcriptomic studies through various levels of Na2SO4 treatments, which results into identification of 3329 differentially expressed genes (DEGs) in roots, stems and leave at 300 mM Na2SO4 stress till 12 h in compared to control. According to gene functional annotation analysis, genes involved in reactive oxygen species (ROS) scavenging system including osmotic stress and ion toxicity were significantly up-regulated, especially GST (glutathione transferase). In addition, analysis for sulfur metabolism, results in to identification of two rate limiting enzymes [APR (Gh_D05G1637) and OASTL (Gh_A13G0863)] during synthesis of GSH from SO42-. Furthermore, we also observed a crosstalk of the hormones and TFs (transcription factors) enriched in hormone signal transduction pathway. Genes related to IAA exceeds the rest of hormones followed by ubiquitin related genes which are greater than TFs. The analysis of the expression profiles of diverse tissues under Na2SO4 stress and identification of relevant key hub genes in a network crosstalk will provide a strong foundation and valuable clues for genetic improvements of cotton in response to various salt stresses.
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