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Chen C, Yu W, Xu X, Wang Y, Wang B, Xu S, Lan Q, Wang Y. Research Advancements in Salt Tolerance of Cucurbitaceae: From Salt Response to Molecular Mechanisms. Int J Mol Sci 2024; 25:9051. [PMID: 39201741 PMCID: PMC11354715 DOI: 10.3390/ijms25169051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/02/2024] [Accepted: 08/19/2024] [Indexed: 09/03/2024] Open
Abstract
Soil salinization severely limits the quality and productivity of economic crops, threatening global food security. Recent advancements have improved our understanding of how plants perceive, signal, and respond to salt stress. The discovery of the Salt Overly Sensitive (SOS) pathway has been crucial in revealing the molecular mechanisms behind plant salinity tolerance. Additionally, extensive research into various plant hormones, transcription factors, and signaling molecules has greatly enhanced our knowledge of plants' salinity tolerance mechanisms. Cucurbitaceae plants, cherished for their economic value as fruits and vegetables, display sensitivity to salt stress. Despite garnering some attention, research on the salinity tolerance of these plants remains somewhat scattered and disorganized. Consequently, this article offers a review centered on three aspects: the salt response of Cucurbitaceae under stress; physiological and biochemical responses to salt stress; and the current research status of their molecular mechanisms in economically significant crops, like cucumbers, watermelons, melon, and loofahs. Additionally, some measures to improve the salt tolerance of Cucurbitaceae crops are summarized. It aims to provide insights for the in-depth exploration of Cucurbitaceae's salt response mechanisms, uncovering the roles of salt-resistant genes and fostering the cultivation of novel varieties through molecular biology in the future.
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Affiliation(s)
- Cuiyun Chen
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Wancong Yu
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China
| | - Xinrui Xu
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yiheng Wang
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China
| | - Bo Wang
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China
| | - Shiyong Xu
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China
| | - Qingkuo Lan
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China
| | - Yong Wang
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China; (C.C.); (W.Y.); (X.X.); (Y.W.); (B.W.); (S.X.)
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China
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Li J, Yang Y. How do plants maintain pH and ion homeostasis under saline-alkali stress? FRONTIERS IN PLANT SCIENCE 2023; 14:1217193. [PMID: 37915515 PMCID: PMC10616311 DOI: 10.3389/fpls.2023.1217193] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 09/25/2023] [Indexed: 11/03/2023]
Abstract
Salt and alkaline stresses often occur together, severely threatening plant growth and crop yields. Salt stress induces osmotic stress, ionic stress, and secondary stresses, such as oxidative stress. Plants under saline-alkali stress must develop suitable mechanisms for adapting to the combined stress. Sustained plant growth requires maintenance of ion and pH homeostasis. In this review, we focus on the mechanisms of ion and pH homeostasis in plant cells under saline-alkali stress, including regulation of ion sensing, ion uptake, ion exclusion, ion sequestration, and ion redistribution among organs by long-distance transport. We also discuss outstanding questions in this field.
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Affiliation(s)
- Jing Li
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Yongqing Yang
- College of Biological Sciences, China Agricultural University, Beijing, China
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3
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Xie Q, Zhou Y, Jiang X. Structure, Function, and Regulation of the Plasma Membrane Na +/H + Antiporter Salt Overly Sensitive 1 in Plants. FRONTIERS IN PLANT SCIENCE 2022; 13:866265. [PMID: 35432437 PMCID: PMC9009148 DOI: 10.3389/fpls.2022.866265] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/08/2022] [Indexed: 05/24/2023]
Abstract
Physiological studies have confirmed that export of Na+ to improve salt tolerance in plants is regulated by the combined activities of a complex transport system. In the Na+ transport system, the Na+/H+ antiporter salt overly sensitive 1 (SOS1) is the main protein that functions to excrete Na+ out of plant cells. In this paper, we review the structure and function of the Na+/H+ antiporter and the physiological process of Na+ transport in SOS signaling pathway, and discuss the regulation of SOS1 during phosphorylation activation by protein kinase and the balance mechanism of inhibiting SOS1 antiporter at molecular and protein levels. In addition, we carried out phylogenetic tree analysis of SOS1 proteins reported so far in plants, which implied the specificity of salt tolerance mechanism from model plants to higher crops under salt stress. Finally, the high complexity of the regulatory network of adaptation to salt tolerance, and the feasibility of coping strategies in the process of genetic improvement of salt tolerance quality of higher crops were reviewed.
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Affiliation(s)
- Qing Xie
- National Innovation Center for Technology of Saline-Alkaline Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
| | - Yang Zhou
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
| | - Xingyu Jiang
- National Innovation Center for Technology of Saline-Alkaline Tolerant Rice/College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Hainan Key Laboratory for Biotechnology of Salt Tolerant Crops/School of Horticulture, Hainan University, Haikou, China
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Roy S, Chakraborty AP, Chakraborty R. Understanding the potential of root microbiome influencing salt-tolerance in plants and mechanisms involved at the transcriptional and translational level. PHYSIOLOGIA PLANTARUM 2021; 173:1657-1681. [PMID: 34549441 DOI: 10.1111/ppl.13570] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/10/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Soil salinity severely affects plant growth and development and imparts inevitable losses to crop productivity. Increasing the concentration of salts in the vicinity of plant roots has severe consequences at the morphological, biochemical, and molecular levels. These include loss of chlorophyll, decrease in photosynthetic rate, reduction in cell division, ROS generation, inactivation of antioxidative enzymes, alterations in phytohormone biosynthesis and signaling, and so forth. The association of microorganisms, viz. plant growth-promoting rhizobacteria, endophytes, and mycorrhiza, with plant roots constituting the root microbiome can confer a greater degree of salinity tolerance in addition to their inherent ability to promote growth and induce defense mechanisms. The mechanisms involved in induced stress tolerance bestowed by these microorganisms involve the modulation of phytohormone biosynthesis and signaling pathways (including indole acetic acid, gibberellic acid, brassinosteroids, abscisic acid, and jasmonic acid), accumulation of osmoprotectants (proline, glycine betaine, and sugar alcohols), and regulation of ion transporters (SOS1, NHX, HKT1). Apart from this, salt-tolerant microorganisms are known to induce the expression of salt-responsive genes via the action of several transcription factors, as well as by posttranscriptional and posttranslational modifications. Moreover, the potential of these salt-tolerant microflora can be employed for sustainably improving crop performance in saline environments. Therefore, this review will briefly focus on the key responses of plants under salinity stress and elucidate the mechanisms employed by the salt-tolerant microorganisms in improving plant tolerance under saline environments.
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Affiliation(s)
- Swarnendu Roy
- Plant Biochemistry Laboratory, Department of Botany, University of North Bengal, Darjeeling, West Bengal, India
| | | | - Rakhi Chakraborty
- Department of Botany, Acharya Prafulla Chandra Roy Government College, Darjeeling, West Bengal, India
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Li Y, Cao K, Li N, Zhu G, Fang W, Chen C, Wang X, Guo J, Wang Q, Ding T, Wang J, Guan L, Wang J, Liu K, Guo W, Arús P, Huang S, Fei Z, Wang L. Genomic analyses provide insights into peach local adaptation and responses to climate change. Genome Res 2021; 31:592-606. [PMID: 33687945 PMCID: PMC8015852 DOI: 10.1101/gr.261032.120] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 01/25/2021] [Indexed: 01/30/2023]
Abstract
The environment has constantly shaped plant genomes, but the genetic bases underlying how plants adapt to environmental influences remain largely unknown. We constructed a high-density genomic variation map of 263 geographically representative peach landraces and wild relatives. A combination of whole-genome selection scans and genome-wide environmental association studies (GWEAS) was performed to reveal the genomic bases of peach adaptation to diverse climates. A total of 2092 selective sweeps that underlie local adaptation to both mild and extreme climates were identified, including 339 sweeps conferring genomic pattern of adaptation to high altitudes. Using genome-wide environmental association studies (GWEAS), a total of 2755 genomic loci strongly associated with 51 specific environmental variables were detected. The molecular mechanism underlying adaptive evolution of high drought, strong UVB, cold hardiness, sugar content, flesh color, and bloom date were revealed. Finally, based on 30 yr of observation, a candidate gene associated with bloom date advance, representing peach responses to global warming, was identified. Collectively, our study provides insights into molecular bases of how environments have shaped peach genomes by natural selection and adds candidate genes for future studies on evolutionary genetics, adaptation to climate changes, and breeding.
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Affiliation(s)
- Yong Li
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.,National Horticulture Germplasm Resources Center, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.,Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430000, China
| | - Ke Cao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.,National Horticulture Germplasm Resources Center, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Nan Li
- Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Gengrui Zhu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.,National Horticulture Germplasm Resources Center, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Weichao Fang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.,National Horticulture Germplasm Resources Center, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Changwen Chen
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Xinwei Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Jian Guo
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Qi Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Tiyu Ding
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Jiao Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Liping Guan
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Junxiu Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Kuozhan Liu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Wenwu Guo
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430000, China
| | - Pere Arús
- IRTA-Centre de Recerca en Agrigenòmica (CSIC-IRTA-UAB-UB), Barcelona 08193, Spain
| | - Sanwen Huang
- Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York 14853, USA.,U.S. Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Ithaca, New York 14853, USA
| | - Lirong Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.,National Horticulture Germplasm Resources Center, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
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Ma X, Li QH, Yu YN, Qiao YM, Haq SU, Gong ZH. The CBL-CIPK Pathway in Plant Response to Stress Signals. Int J Mol Sci 2020; 21:E5668. [PMID: 32784662 PMCID: PMC7461506 DOI: 10.3390/ijms21165668] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/02/2020] [Accepted: 08/06/2020] [Indexed: 12/19/2022] Open
Abstract
Plants need to cope with multitudes of stimuli throughout their lifecycles in their complex environments. Calcium acts as a ubiquitous secondary messenger in response to numerous stresses and developmental processes in plants. The major Ca2+ sensors, calcineurin B-like proteins (CBLs), interact with CBL-interacting protein kinases (CIPKs) to form a CBL-CIPK signaling network, which functions as a key component in the regulation of multiple stimuli or signals in plants. In this review, we describe the conserved structure of CBLs and CIPKs, characterize the features of classification and localization, draw conclusions about the currently known mechanisms, with a focus on novel findings in response to multiple stresses, and summarize the physiological functions of the CBL-CIPK network. Moreover, based on the gradually clarified mechanisms of the CBL-CIPK complex, we discuss the present limitations and potential prospects for future research. These aspects may provide a deeper understanding and functional characterization of the CBL-CIPK pathway and other signaling pathways under different stresses, which could promote crop yield improvement via biotechnological intervention.
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Affiliation(s)
- Xiao Ma
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (X.M.); (Q.-H.L.); (Y.-N.Y.); (Y.-M.Q.); (S.u.H.)
| | - Quan-Hui Li
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (X.M.); (Q.-H.L.); (Y.-N.Y.); (Y.-M.Q.); (S.u.H.)
- Academy of Agricultural and Forestry Sciences, Qinghai University, Xining 810016, China
| | - Ya-Nan Yu
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (X.M.); (Q.-H.L.); (Y.-N.Y.); (Y.-M.Q.); (S.u.H.)
| | - Yi-Ming Qiao
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (X.M.); (Q.-H.L.); (Y.-N.Y.); (Y.-M.Q.); (S.u.H.)
| | - Saeed ul Haq
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (X.M.); (Q.-H.L.); (Y.-N.Y.); (Y.-M.Q.); (S.u.H.)
| | - Zhen-Hui Gong
- College of Horticulture, Northwest A&F University, Yangling 712100, China; (X.M.); (Q.-H.L.); (Y.-N.Y.); (Y.-M.Q.); (S.u.H.)
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Zou HX, Zhao D, Wen H, Li N, Qian W, Yan X. Salt stress induced differential metabolic responses in the sprouting tubers of Jerusalem artichoke (Helianthus tuberosus L.). PLoS One 2020; 15:e0235415. [PMID: 32598354 PMCID: PMC7323981 DOI: 10.1371/journal.pone.0235415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/15/2020] [Indexed: 12/14/2022] Open
Abstract
To better understand the mechanism of inherent salt resistance in Jerusalem artichoke (Helianthus tuberosus L.), physiological and metabolic responses of tubers at the initiation stage of sprouting under different salt stress levels were evaluated in the present study. As a result, 28 metabolites were identified using proton nuclear magnetic resonance (1H-NMR) spectroscopy. Jerusalem artichoke tubers showed minor changes in metabolic response under moderate salt stress when they had not yet sprouted, where metabolism was downregulated at the start of sprouting and then upregulated significantly after plants became autotrophic. However, mild and severe salt stress levels caused different metabolic response patterns. In addition, the accumulation of fructose and sucrose was enhanced by moderate salt stress, while glucose was highly consumed. Aspartate and asparagine showed accelerated accumulation in sprouting Jerusalem artichoke tubers that became autotrophic, suggesting the enhancement of photosynthesis by moderate salt stress.
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Affiliation(s)
- Hui-Xi Zou
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, People’s Republic of China
| | - Dongsheng Zhao
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, People’s Republic of China
| | - Haihong Wen
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, People’s Republic of China
| | - Nan Li
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, People’s Republic of China
| | - Weiguo Qian
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, People’s Republic of China
| | - Xiufeng Yan
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, People’s Republic of China
- * E-mail:
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Genome-wide identification and biochemical characterization of calcineurin B-like calcium sensor proteins in Chlamydomonas reinhardtii. Biochem J 2020; 477:1879-1892. [DOI: 10.1042/bcj20190960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/17/2020] [Accepted: 04/09/2020] [Indexed: 12/18/2022]
Abstract
Calcium (Ca2+) signaling is involved in the regulation of diverse biological functions through association with several proteins that enable them to respond to abiotic and biotic stresses. Though Ca2+-dependent signaling has been implicated in the regulation of several physiological processes in Chlamydomonas reinhardtii, Ca2+ sensor proteins are not characterized completely. C. reinhardtii has diverged from land plants lineage, but shares many common genes with animals, particularly those encoding proteins of the eukaryotic flagellum (or cilium) along with the basal body. Calcineurin, a Ca2+/calmodulin-dependent protein phosphatase, is an important effector of Ca2+ signaling in animals, while calcineurin B-like proteins (CBLs) play an important role in Ca2+ sensing and signaling in plants. The present study led to the identification of 13 novel CBL-like Ca2+ sensors in C. reinhardtii genome. One of the archetypical genes of the newly identified candidate, CrCBL-like1 was characterized. The ability of CrCBL-like1 protein to sense as well as bind Ca2+ were validated using two-step Ca2+-binding kinetics. The CrCBL-like1 protein localized around the plasma membrane, basal bodies and in flagella, and interacted with voltage-gated Ca2+ channel protein present abundantly in the flagella, indicating its involvement in the regulation of the Ca2+ concentration for flagellar movement. The CrCBL-like1 transcript and protein expression were also found to respond to abiotic stresses, suggesting its involvement in diverse physiological processes. Thus, the present study identifies novel Ca2+ sensors and sheds light on key players involved in Ca2+signaling in C. reinhardtii, which could further be extrapolated to understand the evolution of Ca2+ mediated signaling in other eukaryotes.
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Monihan SM, Magness CA, Ryu CH, McMahon MM, Beilstein MA, Schumaker KS. Duplication and functional divergence of a calcium sensor in the Brassicaceae. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:2782-2795. [PMID: 31989164 PMCID: PMC7210777 DOI: 10.1093/jxb/eraa031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/27/2020] [Indexed: 05/09/2023]
Abstract
The presence of varied numbers of CALCINEURIN B-LIKE10 (CBL10) calcium sensor genes in species across the Brassicaceae and the demonstrated role of CBL10 in salt tolerance in Arabidopsis thaliana and Eutrema salsugineum provided a unique opportunity to determine if CBL10 function is modified in different species and linked to salt tolerance. Salinity effects on species growth and cross-species complementation were used to determine the extent of conservation and divergence of CBL10 function in four species representing major lineages within the core Brassicaceae (A. thaliana, E. salsugineum, Schrenkiella parvula, and Sisymbrium irio) as well as the first diverging lineage (Aethionema arabicum). Evolutionary and functional analyses indicate that CBL10 duplicated within expanded lineage II of the Brassicaceae and that, while portions of CBL10 function are conserved across the family, there are species-specific variations in CBL10 function. Paralogous CBL10 genes within a species diverged in expression and function probably contributing to the maintenance of the duplicated gene pairs. Orthologous CBL10 genes diverged in function in a species-specific manner, suggesting that functions arose post-speciation. Multiple CBL10 genes and their functional divergence may have expanded calcium-mediated signaling responses and contributed to the ability of certain members of the Brassicaceae to maintain growth in salt-affected soils.
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Affiliation(s)
- Shea M Monihan
- School of Plant Sciences, University of Arizona, Tucson, AZ, USA
| | | | - Choong-Hwan Ryu
- School of Plant Sciences, University of Arizona, Tucson, AZ, USA
| | | | - Mark A Beilstein
- School of Plant Sciences, University of Arizona, Tucson, AZ, USA
| | - Karen S Schumaker
- School of Plant Sciences, University of Arizona, Tucson, AZ, USA
- Correspondence:
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Plasencia FA, Estrada Y, Flores FB, Ortíz-Atienza A, Lozano R, Egea I. The Ca 2+ Sensor Calcineurin B-Like Protein 10 in Plants: Emerging New Crucial Roles for Plant Abiotic Stress Tolerance. FRONTIERS IN PLANT SCIENCE 2020; 11:599944. [PMID: 33519853 PMCID: PMC7843506 DOI: 10.3389/fpls.2020.599944] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 12/09/2020] [Indexed: 05/14/2023]
Abstract
Ca2+ is a second messenger that mediates plant responses to abiotic stress; Ca2+ signals need to be decoded by Ca2+ sensors that translate the signal into physiological, metabolic, and molecular responses. Recent research regarding the Ca2+ sensor CALCINEURIN B-LIKE PROTEIN 10 (CBL10) has resulted in important advances in understanding the function of this signaling component during abiotic stress tolerance. Under saline conditions, CBL10 function was initially understood to be linked to regulation of Na+ homeostasis, protecting plant shoots from salt stress. During this process, CBL10 interacts with the CBL-interacting protein kinase 24 (CIPK24, SOS2), this interaction being localized at both the plasma and vacuolar (tonoplast) membranes. Interestingly, recent studies have exposed that CBL10 is a regulator not only of Na+ homeostasis but also of Ca2+ under salt stress, regulating Ca2+ fluxes in vacuoles, and also at the plasma membrane. This review summarizes new research regarding functions of CBL10 in plant stress tolerance, predominantly salt stress, as this is the most commonly studied abiotic stress associated with the function of this regulator. Special focus has been placed on some aspects that are still unclear. We also pay particular attention on the proven versatility of CBL10 to activate (in a CIPK-dependent manner) or repress (by direct interaction) downstream targets, in different subcellular locations. These in turn appear to be the link through which CBL10 could be a key master regulator of stress signaling in plants and also a crucial participant in fruit development and quality, as disruption of CBL10 results in inadequate Ca2+ partitioning in plants and fruit. New emerging roles associated with other abiotic stresses in addition to salt stress, such as drought, flooding, and K+ deficiency, are also addressed in this review. Finally, we provide an outline of recent advances in identification of potential targets of CBL10, as CBL10/CIPKs complexes and as CBL10 direct interactions. The aim is to showcase new research regarding this master regulator of abiotic stress tolerance that may be essential to the maintenance of crop productivity under abiotic stress. This is particularly pertinent when considering the scenario of a projected increase in extreme environmental conditions due to climate change.
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Affiliation(s)
- Felix A. Plasencia
- Department of Stress Biology and Plant Pathology, Centro de Edafologia y Biologia Aplicada del Segura (CEBAS), Consejo Superior de Investigaciones Científicas (CSIC), Campus Universitario Espinardo, Murcia, Spain
| | - Yanira Estrada
- Department of Stress Biology and Plant Pathology, Centro de Edafologia y Biologia Aplicada del Segura (CEBAS), Consejo Superior de Investigaciones Científicas (CSIC), Campus Universitario Espinardo, Murcia, Spain
| | - Francisco B. Flores
- Department of Stress Biology and Plant Pathology, Centro de Edafologia y Biologia Aplicada del Segura (CEBAS), Consejo Superior de Investigaciones Científicas (CSIC), Campus Universitario Espinardo, Murcia, Spain
| | - Ana Ortíz-Atienza
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Almería, Spain
| | - Rafael Lozano
- Centro de Investigación en Biotecnología Agroalimentaria (BITAL), Universidad de Almería, Almería, Spain
| | - Isabel Egea
- Department of Stress Biology and Plant Pathology, Centro de Edafologia y Biologia Aplicada del Segura (CEBAS), Consejo Superior de Investigaciones Científicas (CSIC), Campus Universitario Espinardo, Murcia, Spain
- *Correspondence: Isabel Egea,
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Ma X, Gai WX, Qiao YM, Ali M, Wei AM, Luo DX, Li QH, Gong ZH. Identification of CBL and CIPK gene families and functional characterization of CaCIPK1 under Phytophthora capsici in pepper (Capsicum annuum L.). BMC Genomics 2019; 20:775. [PMID: 31653202 PMCID: PMC6814991 DOI: 10.1186/s12864-019-6125-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 09/20/2019] [Indexed: 12/31/2022] Open
Abstract
Background Calcineurin B-like proteins (CBLs) are major Ca2+ sensors that interact with CBL-interacting protein kinases (CIPKs) to regulate growth and development in plants. The CBL-CIPK network is involved in stress response, yet little is understood on how CBL-CIPK function in pepper (Capsicum annuum L.), a staple vegetable crop that is threatened by biotic and abiotic stressors. Results In the present study, nine CaCBL and 26 CaCIPK genes were identified in pepper and the genes were named based on their chromosomal order. Phylogenetic and structural analysis revealed that CaCBL and CaCIPK genes clustered in four and five groups, respectively. Quantitative real-time PCR (qRT-PCR) assays showed that CaCBL and CaCIPK genes were constitutively expressed in different tissues, and their expression patterns were altered when the plant was exposed to Phytophthora capsici, salt and osmotic stress. CaCIPK1 expression changed in response to stress, including exposure to P. capsici, NaCl, mannitol, salicylic acid (SA), methyl jasmonate (MeJA), abscisic acid (ABA), ethylene (ETH), cold and heat stress. Knocking down CaCIPK1 expression increased the susceptibility of pepper to P. capsici, reduced root activity, and altered the expression of defense related genes. Transient overexpression of CaCIPK1 enhanced H2O2 accumulation, cell death, and expression of genes involved in defense. Conclusions Nine CaCBL and 26 CaCIPK genes were identified in the pepper genome, and the expression of most CaCBL and CaCIPK genes were altered when the plant was exposed to stress. In particular, we found that CaCIPK1 is mediates the pepper plant’s defense against P. capsici. These results provide the groundwork for further functional characterization of CaCBL and CaCIPK genes in pepper.
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Affiliation(s)
- Xiao Ma
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Wen-Xian Gai
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Yi-Ming Qiao
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Muhammad Ali
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Ai-Min Wei
- Tianjin Vegetable Research Center, Tianjin, 300192, People's Republic of China
| | - De-Xu Luo
- Xuhuai Region Huaiyin Institute of Agricultural Sciences, Huaian, Jiangsu, 223001, People's Republic of China
| | - Quan-Hui Li
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.,Qinghai Academy of Agricultural and Forestry Sciences, Xining, Qinghai, 810016, People's Republic of China
| | - Zhen-Hui Gong
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China. .,State Key Laboratory of Vegetable Germplasm Innovation, Tianjin, 300384, People's Republic of China.
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12
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Yang Y, Zhang C, Tang RJ, Xu HX, Lan WZ, Zhao F, Luan S. Calcineurin B-Like Proteins CBL4 and CBL10 Mediate Two Independent Salt Tolerance Pathways in Arabidopsis. Int J Mol Sci 2019; 20:ijms20102421. [PMID: 31100786 PMCID: PMC6566158 DOI: 10.3390/ijms20102421] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/10/2019] [Accepted: 05/12/2019] [Indexed: 12/20/2022] Open
Abstract
In Arabidopsis, the salt overly sensitive (SOS) pathway, consisting of calcineurin B-like protein 4 (CBL4/SOS3), CBL-interacting protein kinase 24 (CIPK24/SOS2) and SOS1, has been well defined as a crucial mechanism to control cellular ion homoeostasis by extruding Na+ to the extracellular space, thus conferring salt tolerance in plants. CBL10 also plays a critical role in salt tolerance possibly by the activation of Na+ compartmentation into the vacuole. However, the functional relationship of the SOS and CBL10-regulated processes remains unclear. Here, we analyzed the genetic interaction between CBL4 and CBL10 and found that the cbl4 cbl10 double mutant was dramatically more sensitive to salt as compared to the cbl4 and cbl10 single mutants, suggesting that CBL4 and CBL10 each directs a different salt-tolerance pathway. Furthermore, the cbl4 cbl10 and cipk24 cbl10 double mutants were more sensitive than the cipk24 single mutant, suggesting that CBL10 directs a process involving CIPK24 and other partners different from the SOS pathway. Although the cbl4 cbl10, cipk24 cbl10, and sos1 cbl10 double mutants showed comparable salt-sensitive phenotype to sos1 at the whole plant level, they all accumulated much lower Na+ as compared to sos1 under high salt conditions, suggesting that CBL10 regulates additional unknown transport processes that play distinct roles from the SOS1 in Na+ homeostasis.
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Affiliation(s)
- Yang Yang
- Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing 210093, China.
| | - Chi Zhang
- Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing 210093, China.
| | - Ren-Jie Tang
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA.
| | - Hai-Xia Xu
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA.
- College of Agronomy, Henan Agricultural University, Collaborative Innovation Center of Henan Grain Crops, Zhengzhou 450002, China; .
| | - Wen-Zhi Lan
- Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing 210093, China.
| | - Fugeng Zhao
- Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, College of Life Sciences, Nanjing University, Nanjing 210093, China.
| | - Sheng Luan
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA.
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13
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Monihan SM, Ryu CH, Magness CA, Schumaker KS. Linking Duplication of a Calcium Sensor to Salt Tolerance in Eutrema salsugineum. PLANT PHYSIOLOGY 2019; 179:1176-1192. [PMID: 30606887 PMCID: PMC6393783 DOI: 10.1104/pp.18.01400] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/16/2018] [Indexed: 05/24/2023]
Abstract
The SALT-OVERLY-SENSITIVE (SOS) pathway in Arabidopsis (Arabidopsis thaliana) functions to prevent the toxic accumulation of sodium in the cytosol when plants are grown in salt-affected soils. In this pathway, the CALCINEURIN B-LIKE10 (AtCBL10) calcium sensor interacts with the AtSOS2 kinase to activate the AtSOS1 plasma membrane sodium/proton exchanger. CBL10 has been duplicated in Eutrema (Eutrema salsugineum), a salt-tolerant relative of Arabidopsis. Because Eutrema maintains growth in salt-affected soils that kill most crop plants, the duplication of CBL10 provides a unique opportunity to functionally test the outcome of gene duplication and its link to plant salt tolerance. In Eutrema, individual down-regulation of the duplicated CBL10 genes (EsCBL10a and EsCBL10b) decreased growth in the presence of salt and, in combination, led to an even greater decrease, suggesting that both genes function in response to salt and have distinct functions. Cross-species complementation assays demonstrated that EsCBL10b has an enhanced ability to activate the SOS pathway while EsCBL10a has a function not performed by AtCBL10 or EsCBL10b Chimeric EsCBL10a/EsCBL10b proteins revealed that the specific functions of the EsCBL10 proteins resulted from changes in the amino terminus. The duplication of CBL10 increased calcium-mediated signaling capacity in Eutrema and conferred increased salt tolerance to salt-sensitive Arabidopsis.
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Affiliation(s)
- Shea M Monihan
- School of Plant Sciences, University of Arizona, Tucson, Arizona 85721
| | - Choong-Hwan Ryu
- School of Plant Sciences, University of Arizona, Tucson, Arizona 85721
| | | | - Karen S Schumaker
- School of Plant Sciences, University of Arizona, Tucson, Arizona 85721
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14
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Zheng M, Liu X, Lin J, Liu X, Wang Z, Xin M, Yao Y, Peng H, Zhou DX, Ni Z, Sun Q, Hu Z. Histone acetyltransferase GCN5 contributes to cell wall integrity and salt stress tolerance by altering the expression of cellulose synthesis genes. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 97:587-602. [PMID: 30394596 DOI: 10.1111/tpj.14144] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/18/2018] [Accepted: 10/23/2018] [Indexed: 05/22/2023]
Abstract
Excess soluble salts in soil are harmful to the growth and development of most plants. Evidence is emerging that the plant cell wall is involved in sensing and responding to salt stress, but the underlying mechanisms are not well understood. We reveal that the histone acetyltransferase General control non-repressed protein 5 (GCN5) is required for the maintenance of cell wall integrity and salt stress tolerance. The levels of GCN5 mRNA are increased in response to salt stress. The gcn5 mutants exhibited severe growth inhibition and defects in cell wall integrity under salt stress conditions. Combining RNA sequencing and chromatin immunoprecipitation assays, we identified the chitinase-like gene CTL1, polygalacturonase involved in expansion-3 (PGX3) and MYB domain protein-54 (MYB54) as direct targets of GCN5. Acetylation of H3K9 and H3K14 mediated by GCN5 is associated with activation of CTL1, PGX3 and MYB54 under salt stress. Moreover, constitutive expression of CTL1 in the gcn5 mutant restores salt tolerance and cell wall integrity. In addition, the expression of the wheat TaGCN5 gene in Arabidopsis gcn5 mutant plants complemented the salt tolerance and cell wall integrity phenotypes, suggesting that GCN5-mediated salt tolerance is conserved between Arabidopsis and wheat. Taken together, our data indicate that GCN5 plays a key role in the preservation of salt tolerance via versatile regulation in plants.
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Affiliation(s)
- Mei Zheng
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Xingbei Liu
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Jingchen Lin
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Xinye Liu
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Zhouying Wang
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Mingming Xin
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Dao-Xiu Zhou
- Institute of Plant Science Paris-Saclay, Université Paris Sud, 91405, Orsay, France
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
| | - Zhaorong Hu
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, China Agricultural University, Beijing, 100193, China
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15
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Gao Y, Zhang G. A calcium sensor calcineurin B-like 9 negatively regulates cold tolerance via calcium signaling in Arabidopsis thaliana. PLANT SIGNALING & BEHAVIOR 2019; 14:e1573099. [PMID: 30696338 PMCID: PMC6422375 DOI: 10.1080/15592324.2019.1573099] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Calcineurin B-like protein 9 (CBL9) plays important roles in response to ABA, K+ deprivation in plants. However, whether CBL9 modulates plant adaptation to low-temperature stress is elusive. In this study, we demonstrated that the cbl9 mutants increased freezing tolerance under both cold-acclimating and nonacclimating conditions in Arabidopsis. Cold-induced changes of cytosolic free calcium concentration ([Ca2+]cyt) were then monitored by aequorin-expressed Arabidopsis plants. The results showed that the cold-triggered increases in [Ca2+]cyt levels in cbl9 mutants were clearly higher than those in wild type (WT) plants, while cold-affected changes in free calcium concentration within cytosolic microdomains adjacent to the vacuolar membrane ([Ca2+]md) in cbl9 mutants were similar to those in WT plants. In addition, treatments of seedlings with Ca2+ chelator ethylene glycol-bis(2-aminoethylether)-N,N,N',N'-tetraacetic acid (EGTA) and Ca2+ channel blocker lanthanum chloride markedly inhibit changes of [Ca2+]cyt in cbl9 mutants, while the inhibition of calcium release by lithium chloride from intracellular pools demonstrated consistent suppression of [Ca2+]cyt in cbl9 mutants and WT plants. Together, these results indicate that CBL9 negatively modulates cold tolerance through decreasing [Ca2+]cyt in Arabidopsis.
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Affiliation(s)
- Yuanlin Gao
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, Institute of Nursing and Health, Henan University, Kaifeng, China
| | - Guozeng Zhang
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, Institute of Nursing and Health, Henan University, Kaifeng, China
- CONTACT Guozeng Zhang State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, Institute of Nursing and Health, Henan University, Kaifeng, China
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16
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Ye NH, Wang FZ, Shi L, Chen MX, Cao YY, Zhu FY, Wu YZ, Xie LJ, Liu TY, Su ZZ, Xiao S, Zhang H, Yang J, Gu HY, Hou XX, Hu QJ, Yi HJ, Zhu CX, Zhang J, Liu YG. Natural variation in the promoter of rice calcineurin B-like protein10 (OsCBL10) affects flooding tolerance during seed germination among rice subspecies. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 94:612-625. [PMID: 29495079 DOI: 10.1111/tpj.13881] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 05/23/2023]
Abstract
Rice (Oryza sativa L.) has two ecotypes, upland and lowland rice, that have been observed to show different tolerance levels under flooding stress. In this study, two rice cultivars, upland (Up221, flooding-intolerant) and lowland (Low88, flooding-tolerant), were initially used to study their molecular mechanisms in response to flooding germination. We observed that variations in the OsCBL10 promoter sequences in these two cultivars might contribute to this divergence in flooding tolerance. Further analysis using another eight rice cultivars revealed that the OsCBL10 promoter could be classified as either a flooding-tolerant type (T-type) or a flooding-intolerant type (I-type). The OsCBL10 T-type promoter only existed in japonica lowland cultivars, whereas the OsCBL10 I-type promoter existed in japonica upland, indica upland and indica lowland cultivars. Flooding-tolerant rice cultivars containing the OsCBL10 T-type promoter have shown lower Ca2+ flow and higher α-amylase activities in comparison to those in flooding-intolerant cultivars. Furthermore, the OsCBL10 overexpression lines were sensitive to both flooding and hypoxic treatments during rice germination with enhanced Ca2+ flow in comparison to wild-type. Subsequent findings also indicate that OsCBL10 may affect OsCIPK15 protein abundance and its downstream pathways. In summary, our results suggest that the adaptation to flooding stress during rice germination is associated with two different OsCBL10 promoters, which in turn affect OsCBL10 expression in different cultivars and negatively affect OsCIPK15 protein accumulation and its downstream cascade.
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Affiliation(s)
- Neng-Hui Ye
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, Changsha, 410128, China
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Taian, Shandong, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Feng-Zhu Wang
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Lu Shi
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Mo-Xian Chen
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Yun-Ying Cao
- College of Life Sciences, Nantong University, Nantong, Jiangsu, China
| | - Fu-Yuan Zhu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, China
| | - Yi-Zhen Wu
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Li-Juan Xie
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Tie-Yuan Liu
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Ze-Zhuo Su
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shi Xiao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hao Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Jianchang Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, China
| | - Hai-Yong Gu
- The Rice Research Institute of Guangdong Academy of Agricultural Sciences (GDRRI), Guangzhou, China
| | - Xuan-Xuan Hou
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Taian, Shandong, China
| | - Qi-Juan Hu
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Hui-Juan Yi
- College of Life Sciences, Nantong University, Nantong, Jiangsu, China
| | - Chang-Xiang Zhu
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Taian, Shandong, China
| | - Jianhua Zhang
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
- Department of Biology, Hong Kong Baptist University, and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Ying-Gao Liu
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Taian, Shandong, China
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17
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Egea I, Pineda B, Ortíz-Atienza A, Plasencia FA, Drevensek S, García-Sogo B, Yuste-Lisbona FJ, Barrero-Gil J, Atarés A, Flores FB, Barneche F, Angosto T, Capel C, Salinas J, Vriezen W, Esch E, Bowler C, Bolarín MC, Moreno V, Lozano R. The SlCBL10 Calcineurin B-Like Protein Ensures Plant Growth under Salt Stress by Regulating Na + and Ca 2+ Homeostasis. PLANT PHYSIOLOGY 2018; 176:1676-1693. [PMID: 29229696 PMCID: PMC5813568 DOI: 10.1104/pp.17.01605] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 12/07/2017] [Indexed: 05/19/2023]
Abstract
Characterization of a new tomato (Solanum lycopersicum) T-DNA mutant allowed for the isolation of the CALCINEURIN B-LIKE PROTEIN 10 (SlCBL10) gene whose lack of function was responsible for the severe alterations observed in the shoot apex and reproductive organs under salinity conditions. Physiological studies proved that SlCBL10 gene is required to maintain a proper low Na+/Ca2+ ratio in growing tissues allowing tomato growth under salt stress. Expression analysis of the main responsible genes for Na+ compartmentalization (i.e. Na+/H+ EXCHANGERs, SALT OVERLY SENSITIVE, HIGH-AFFINITY K+ TRANSPORTER 1;2, H+-pyrophosphatase AVP1 [SlAVP1] and V-ATPase [SlVHA-A1]) supported a reduced capacity to accumulate Na+ in Slcbl10 mutant leaves, which resulted in a lower uploading of Na+ from xylem, allowing the toxic ion to reach apex and flowers. Likewise, the tomato CATION EXCHANGER 1 and TWO-PORE CHANNEL 1 (SlTPC1), key genes for Ca2+ fluxes to the vacuole, showed abnormal expression in Slcbl10 plants indicating an impaired Ca2+ release from vacuole. Additionally, complementation assay revealed that SlCBL10 is a true ortholog of the Arabidopsis (Arabidopsis thaliana) CBL10 gene, supporting that the essential function of CBL10 is conserved in Arabidopsis and tomato. Together, the findings obtained in this study provide new insights into the function of SlCBL10 in salt stress tolerance. Thus, it is proposed that SlCBL10 mediates salt tolerance by regulating Na+ and Ca2+ fluxes in the vacuole, cooperating with the vacuolar cation channel SlTPC1 and the two vacuolar H+-pumps, SlAVP1 and SlVHA-A1, which in turn are revealed as potential targets of SlCBL10.
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Affiliation(s)
- Isabel Egea
- Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, 30100 Espinardo, Murcia, Spain
| | - Benito Pineda
- Instituto de Biología Molecular y Celular de Plantas (UPV-CSIC), Universidad Politécnica de Valencia. s/n. 46022 Valencia, Spain
| | - Ana Ortíz-Atienza
- Centro de Investigación en Biotecnología Agroalimentaria, Universidad de Almería, 04120 Almería, Spain
| | - Félix A Plasencia
- Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, 30100 Espinardo, Murcia, Spain
| | - Stéphanie Drevensek
- Institut de Biologie de l'École Normale Supérieure, Paris Sciences et Lettres Research University, CNRS UMR 8197, INSERM U1024. F-75005 Paris, France
| | - Begoña García-Sogo
- Instituto de Biología Molecular y Celular de Plantas (UPV-CSIC), Universidad Politécnica de Valencia. s/n. 46022 Valencia, Spain
| | - Fernando J Yuste-Lisbona
- Centro de Investigación en Biotecnología Agroalimentaria, Universidad de Almería, 04120 Almería, Spain
| | - Javier Barrero-Gil
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Alejandro Atarés
- Instituto de Biología Molecular y Celular de Plantas (UPV-CSIC), Universidad Politécnica de Valencia. s/n. 46022 Valencia, Spain
| | - Francisco B Flores
- Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, 30100 Espinardo, Murcia, Spain
| | - Fredy Barneche
- Institut de Biologie de l'École Normale Supérieure, Paris Sciences et Lettres Research University, CNRS UMR 8197, INSERM U1024. F-75005 Paris, France
| | - Trinidad Angosto
- Centro de Investigación en Biotecnología Agroalimentaria, Universidad de Almería, 04120 Almería, Spain
| | - Carmen Capel
- Centro de Investigación en Biotecnología Agroalimentaria, Universidad de Almería, 04120 Almería, Spain
| | - Julio Salinas
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Wim Vriezen
- Bayer Vegetable Seeds, 6083 AB Nunhem, The Netherlands
| | | | - Chris Bowler
- Institut de Biologie de l'École Normale Supérieure, Paris Sciences et Lettres Research University, CNRS UMR 8197, INSERM U1024. F-75005 Paris, France
| | - Maria C Bolarín
- Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas, 30100 Espinardo, Murcia, Spain
| | - Vicente Moreno
- Instituto de Biología Molecular y Celular de Plantas (UPV-CSIC), Universidad Politécnica de Valencia. s/n. 46022 Valencia, Spain
| | - Rafael Lozano
- Centro de Investigación en Biotecnología Agroalimentaria, Universidad de Almería, 04120 Almería, Spain
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18
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Revisiting paradigms of Ca2+ signaling protein kinase regulation in plants. Biochem J 2018; 475:207-223. [DOI: 10.1042/bcj20170022] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/07/2017] [Accepted: 12/08/2017] [Indexed: 12/15/2022]
Abstract
Calcium (Ca2+) serves as a universal second messenger in eukaryotic signal transduction. Understanding the Ca2+ activation kinetics of Ca2+ sensors is critical to understanding the cellular signaling mechanisms involved. In this review, we discuss the regulatory properties of two sensor classes: the Ca2+-dependent protein kinases (CPKs/CDPKs) and the calcineurin B-like (CBL) proteins that control the activity of CBL-interacting protein kinases (CIPKs) and identify emerging topics and some foundational points that are not well established experimentally. Most plant CPKs are activated by physiologically relevant Ca2+ concentrations except for those with degenerate EF hands, and new results suggest that the Ca2+-dependence of kinase activation may be modulated by both protein–protein interactions and CPK autophosphorylation. Early results indicated that activation of plant CPKs by Ca2+ occurred by relief of autoinhibition. However, recent studies of protist CDPKs suggest that intramolecular interactions between CDPK domains contribute allosteric control to CDPK activation. Further studies are required to elucidate the mechanisms regulating plant CPKs. With CBL–CIPKs, the two major activation mechanisms are thought to be (i) binding of Ca2+-bound CBL to the CIPK and (ii) phosphorylation of residues in the CIPK activation loop. However, the relative importance of these two mechanisms in regulating CIPK activity is unclear. Furthermore, information detailing activation by physiologically relevant [Ca2+] is lacking, such that the paradigm of CBLs as Ca2+ sensors still requires critical, experimental validation. Developing models of CPK and CIPK regulation is essential to understand how these kinases mediate Ca2+ signaling and to the design of experiments to test function in vivo.
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Yang Y, Guo Y. Elucidating the molecular mechanisms mediating plant salt-stress responses. THE NEW PHYTOLOGIST 2018; 217:523-539. [PMID: 29205383 DOI: 10.1111/nph.14920] [Citation(s) in RCA: 638] [Impact Index Per Article: 106.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/11/2017] [Indexed: 05/18/2023]
Abstract
Contents Summary 523 I. Introduction 523 II. Sensing salt stress 524 III. Ion homeostasis regulation 524 IV. Metabolite and cell activity responses to salt stress 527 V. Conclusions and perspectives 532 Acknowledgements 533 References 533 SUMMARY: Excess soluble salts in soil (saline soils) are harmful to most plants. Salt imposes osmotic, ionic, and secondary stresses on plants. Over the past two decades, many determinants of salt tolerance and their regulatory mechanisms have been identified and characterized using molecular genetics and genomics approaches. This review describes recent progress in deciphering the mechanisms controlling ion homeostasis, cell activity responses, and epigenetic regulation in plants under salt stress. Finally, we highlight research areas that require further research to reveal new determinants of salt tolerance in plants.
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Affiliation(s)
- Yongqing Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
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Yang Q, Wang S, Wu C, Zhang Q, Zhang Y, Chen Q, Li Y, Hao L, Gu Z, Li W, Li T. Malus domestica ADF1 severs actin filaments in growing pollen tubes. FUNCTIONAL PLANT BIOLOGY : FPB 2017; 44:455-463. [PMID: 32480578 DOI: 10.1071/fp16360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 12/16/2016] [Indexed: 06/11/2023]
Abstract
A dynamic actin cytoskeleton is essential for pollen tube growth and germination. However, the molecular mechanism that determines the organisation of the actin cytoskeleton in pollen remains poorly understood. ADF modulates the structure and dynamics of actin filaments and influences the higher-order organisation of the actin cytoskeleton in eukaryotic cells. Members of the ADF family have been shown to have important functions in pollen tube growth. However, the role of this gene family remains largely unknown in apple (Malus domestica Borkh.). In this study, we identified seven ADFs in the apple genome. Phylogenetic analysis showed that MdADF1 clusters with Arabidopsis thaliana (L.) Heynh. AtADF7, ADF8, ADF10 and AtADF11. We performed sequence alignments and analysed the domain structures of the seven MdADF proteins and identified the chromosome locations of the encoding genes. We cloned the gene encoding MdADF1 from 'Ralls Janet' apple and found that it was strongly expressed in pollen. Biochemical assays revealed that MdADF1 directly bound to and severed F-actin under low Ca2+ conditions. We demonstrated that knockdown of MdADF1 inhibited pollen tube growth and reduced the pollen germination rate, but rendered the pollen insensitive to treatment with Latrunculin B, an actin depolymerising agent. Taken together, our results provide insight into the function of MdADF1 and serve as a reference for studies of ADF in other plants.
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Affiliation(s)
- Qing Yang
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - ShengNan Wang
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - ChuanBao Wu
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - QiuLei Zhang
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Yi Zhang
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - QiuJu Chen
- Institute of Pomology of Chinese Academy of Agricultural Sciences
| | - Yang Li
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Li Hao
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Zhaoyu Gu
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Wei Li
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Tianzhong Li
- Laboratory of Fruit Cell and Molecular Breeding, China Agricultural University, Beijing 100193, China
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Xi Y, Liu J, Dong C, Cheng ZM(M. The CBL and CIPK Gene Family in Grapevine ( Vitis vinifera): Genome-Wide Analysis and Expression Profiles in Response to Various Abiotic Stresses. FRONTIERS IN PLANT SCIENCE 2017; 8:978. [PMID: 28649259 PMCID: PMC5465270 DOI: 10.3389/fpls.2017.00978] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/23/2017] [Indexed: 05/20/2023]
Abstract
Calcium plays a central role in regulating signal transduction pathways. Calcineurin B-like proteins (CBLs), which harbor a crucial region consisting of EF hands that capture Ca2+, interact in a specific manner with CBL-interacting protein kinases (CIPKs). This two gene families or their interacting-complex widely respond to various environment stimuli and development processes. The genome-wide annotation and specific expression patterns of CBLs and CIPKs, however, in grapevine remain unclear. In the present study, eight CBL and 20 CIPK genes were identified in grapevine genome, and divided into four and five subfamilies, respectively, based on phylogenetic analysis, and validated by gene structure and the distribution of conserved protein motifs. Four (50%) out of eight VvCBLs and eight (40%) out of 20 VvCIPKs were found to be derived from tandem duplication, and five (25%) out of 20 VvCIPKs were derived from segmental duplication, indicating that the expansion of grapevine CBL and CIPK gene families were mainly contributed by gene duplication, and all duplication events between VvCIPK genes only detected in intron poor clade. Estimating of synonymous and non-synonymous substitution rates of both gene families suggested that VvCBL genes seems more conserved than VvCIPK genes, and were derived by positive selection pressure, whereas VvCIPK genes were mainly derived by purifying selection pressure. Expressional analyses of VvCBL and VvCIPK genes based on microarray and qRT-PCR data performed diverse expression patterns of VvCBLs and VvCIPKs in response to both various abiotic stimuli and at different development stages. Furthermore, the co-expression analysis of grapevine CBLs and CIPKs suggested that CBL-CIPK complex seems to be more responsive to abiotic stimuli than during different development stages. VvCBLs may play an important and special role in regulating low temperature stress. The protein interaction analysis suggested divergent mechanisms might exist between Arabidopsis and grapevine. Our results will facilitate the future functional characterization of individual VvCBLs and VvCIPKs.
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Affiliation(s)
- Yue Xi
- Fruit Crop Systems Biology Laboratory, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Jinyi Liu
- Fruit Crop Systems Biology Laboratory, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Chao Dong
- Fruit Crop Systems Biology Laboratory, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
| | - Zong-Ming (Max) Cheng
- Fruit Crop Systems Biology Laboratory, College of Horticulture, Nanjing Agricultural UniversityNanjing, China
- Department of Plant Sciences, University of TennesseeKnoxville, TN, United States
- *Correspondence: Zong-Ming (Max) Cheng ;
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Li DD, Xue JS, Zhu J, Yang ZN. Gene Regulatory Network for Tapetum Development in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2017; 8:1559. [PMID: 28955355 PMCID: PMC5601042 DOI: 10.3389/fpls.2017.01559] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/28/2017] [Indexed: 05/19/2023]
Abstract
In flowering plants, male gametophyte development occurs in the anther. Tapetum, the innermost of the four anther somatic layers, surrounds the developing reproductive cells to provide materials for pollen development. A genetic pathway of DYT1-TDF1-AMS-MS188 in regulating tapetum development has been proven. Here we used laser microdissection and pressure catapulting to capture and analyze the transcriptome data for the Arabidopsis tapetum at two stages. With a comprehensive analysis by the microarray data of dyt1, tdf1, ams, and ms188 mutants, we identified possible downstream genes for each transcription factor. These transcription factors regulate many biological processes in addition to activating the expression of the other transcription factor. Briefly, DYT1 may also regulate early tapetum development via E3 ubiquitin ligases and many other transcription factors. TDF1 is likely involved in redox and cell degradation. AMS probably regulates lipid transfer proteins, which are involved in pollen wall formation, and other E3 ubiquitin ligases, functioning in degradating proteins produced in previous processes. MS188 is responsible for most cell wall-related genes, functioning both in tapetum cell wall degradation and pollen wall formation. These results propose a more complex gene regulatory network for tapetum development and function.
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Xu L, Zhang D, Xu Z, Huang Y, He X, Wang J, Gu M, Li J, Shao H. Comparative expression analysis of Calcineurin B-like family gene CBL10A between salt-tolerant and salt-sensitive cultivars in B. oleracea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 571:1-10. [PMID: 27449606 DOI: 10.1016/j.scitotenv.2016.07.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/14/2016] [Accepted: 07/18/2016] [Indexed: 06/06/2023]
Abstract
Calcineurin B-like proteins (CBLs) are plant calcium sensors that play a critical role in the regulation of plant growth and response to stress. Many CBLs have been identified in the calcium signaling pathway in both Arabidopsis and rice. However, information about BoCBLs genes from Brassica oleracea has not been reported. In the present study, we identified 13 candidate CBL genes in the B. oleracea genome based on the conserved domain of the Calcineurin B-like family, and we carried out a phylogenetic analysis of CBLs among Arabidopsis, rice, maize, cabbage and B. oleracea. For B. oleracea, the distribution of the predicted BoCBL genes was uneven among the five chromosomes. Sequence analysis showed that the nucleotide sequences and corresponding protein structure of BoCBLs were highly conserved, i.e., all of the putative BoCBLs contained 6-8 introns, and most of the exons of those genes contained the same number of nucleotides and had high sequence identities. All BoCBLs consisted of four EF-Hand functional domains, and the distance between the EF-hand motifs was conserved. Evolutionary analysis revealed that the CBLs were classified into two subgroups. Additionally, the CBL10A gene was cloned from salt-tolerant (CB6) and salt-sensitive (CB3) cultivars using RT-PCR. The results indicated that the cloned gene had a substantial difference in length (741bp in CB3 and 829bp in CB6) between these two cultivars. The deduced CBL10A protein in CB6 had four EF-hand structural domains, which have an irreplaceable role in calcium-binding and have calcineurin A subunit binding sites, while the BoCBL10A protein in CB3 had only two EF-hand structural domains and lacked calcineurin A subunit binding sites. The expression level of the BoCBL10A gene between salt tolerance (CB6)and sensitive varieties(CB3) under salt stress was significantly different (P<0.01 and P<0.05). The expression of BoCBL10A gene was relatively higher in salt-tolerant (CB6) cultivar under salt stress, with a longer period of up-regulation expression and a shorter time responding to salt, compared with the salt-sensitive (CB3) cultivar. We speculate that these differences in the coding region of BoCBL10A may lead to the different salt responses between these two cultivars.
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Affiliation(s)
- Ling Xu
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Dayong Zhang
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Zhaolong Xu
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yihong Huang
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiaolan He
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jinyan Wang
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Minfeng Gu
- Xinyang Agricultural Experimental Station, Jiangsu Academy of Agricultural Sciences, Yancheng 224000, China.
| | - Jianbin Li
- Vegetable Research Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Hongbo Shao
- Provincial Key Laboratory of Agrobiology, Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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Zhou Y, Cheng Y, Yang Y, Li X, Supriyo B, Sun X, Yang Y. Overexpression of SpCBL6, a calcineurin B-like protein of Stipa purpurea, enhanced cold tolerance and reduced drought tolerance in transgenic Arabidopsis. Mol Biol Rep 2016; 43:957-66. [PMID: 27393148 DOI: 10.1007/s11033-016-4036-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 06/30/2016] [Indexed: 12/11/2022]
Abstract
The purpose of the present study was to characterize SpCBL6 (GenBank accession number: KT780442) from Stipa purpurea and elucidate the function of this protein in abiotic stress. The full-length cDNA of SpCBL6 was isolated from S. purpurea by rapid amplification of cDNA ends methods. Laser confocal microscopy was used to analyze the subcellular localization of SpCBL6. The constructs of 35S:GFP-SpCBL6 was used to transform wild-type (WT) Arabidopsis plants (ecotype Columbia-0) with the floral dip method. Quantitative reverse-transcription PCR (qRT-PCR), water potential, photosynthetic efficiency (F v/F m), and ion leakage was performed to investigate the role of SpCBL6 in abiotic stress. The open reading frame of SpCBL6 contains 681 bp nucleotides and encodes a 227-amino acid polypeptide. Phylogenetic analysis indicated that SpCBL6 showed the highest similarity with rice OsCBL6. SpCBL6 transcripts were induced by freezing and drought treatments. Subcellular localization analysis showed that SpCBL6 was located in membrane of protoplast. Overexpression of SpCBL6 in Arabidopsis thaliana demonstrated that the transgenic plants were more tolerant to cold treatment, but less tolerant to drought, compared with the plants. qRT-PCR analysis showed that the drought stress marker genes were inhibited in transgenic plants, whereas the cold stress marker genes were enhanced. Further analysis showed that SpCBL6-overexpressing plants showed enhanced water potential, photosynthetic efficiency (F v/F m), and reduced ion leakage compared with the wild-type after cold treatment. Collectively, these results indicate that SpCBL6, a new member of the CBL gene family isolated from S. purpurea, enhances cold tolerance and reduces drought tolerance in plants.
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Affiliation(s)
- Yanli Zhou
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Plant Germplasm and Genomics Center, The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Cheng
- College of Horticulture and Landscape, Yunnan Agricultural Universsity, Kunming, 650201, China
| | - Yunqiang Yang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Plant Germplasm and Genomics Center, The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xiong Li
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Plant Germplasm and Genomics Center, The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Basak Supriyo
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Plant Germplasm and Genomics Center, The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xudong Sun
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
- Plant Germplasm and Genomics Center, The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Yongping Yang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
- Plant Germplasm and Genomics Center, The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
- University of the Chinese Academy of Sciences, Beijing, 100049, China.
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
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