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Zhou T, Chang F, Li X, Yang W, Huang X, Yan J, Wu Q, Wen F, Pei J, Ma Y, Xu B. Role of auxin and gibberellin under low light in enhancing saffron corm starch degradation during sprouting. Int J Biol Macromol 2024; 279:135234. [PMID: 39218189 DOI: 10.1016/j.ijbiomac.2024.135234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 08/27/2024] [Accepted: 08/29/2024] [Indexed: 09/04/2024]
Abstract
The mechanisms by which low light accelerates starch macromolecules degradation by auxin and gibberellin (GA) in geophytes during sprouting remain largely unknown. This study investigated these mechanisms in saffron, grown under low light (50 μmol m-2 s-1) and optimal light (200 μmol m-2 s-1) during the sprouting phase. Low light reduced starch concentration in corms by 34.0 % and increased significantly sucrose levels in corms, leaves, and leaf sheaths by 19.2 %, 9.8 %, and 134.5 %, respectively. This was associated with a 33.3 % increase in GA3 level and enhanced auxin signaling. Leaves synthesized IAA under low light, which was transported to the corms to promote GA synthesis, facilitating starch degradation through a 228.7 % increase in amylase activity. Exogenous applications of GA and IAA, as well as the use of their synthesis or transport inhibitors, confirmed the synergistic role of these phytohormones in starch metabolism. The unigenes associated with GA biosynthesis and auxin signaling were upregulated under low light, highlighting the IAA-GA module role in starch degradation. Moreover, increased respiration rate and invertase activity, crucial for ATP biosynthesis and the tricarboxylic acid cycle, were consistent with the upregulation of related unigenes, suggesting that auxin signaling accelerates starch degradation by promoting energy metabolism. Upregulated of auxin signaling (CsSAUR32) and starch metabolism (CsSnRK1) genes under low light suggests that auxin directly regulate starch degradation in saffron corms. This study elucidates that low light modulates auxin and GA interactions to accelerate starch degradation in saffron corms during sprouting, offering insights for optimizing agricultural practices under suboptimal light conditions.
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Affiliation(s)
- Tao Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Fei Chang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Xin Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Weijing Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Xulong Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Jie Yan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Qinghua Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Feiyan Wen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China
| | - Jin Pei
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China.
| | - Yuntong Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China.
| | - Binjie Xu
- Innovative institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan, China.
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Sun S, Wu P, Gao F, Yu X, Liu Y, Zheng C. Genome-wide identification and expression analysis of phytochrome-interacting factor genes during abiotic stress responses and secondary metabolism in the tea plant. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108988. [PMID: 39094480 DOI: 10.1016/j.plaphy.2024.108988] [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: 05/05/2024] [Revised: 07/07/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
Phytochrome-interacting factors (PIFs) are pivotal transcriptional regulators controlling photomorphogenesis, environmental responses, and development in plants. However, their specific roles in coordinating adaptation towards abiotic stress and metabolism remain underexplored in tea plants. Here, we identified seven PIF members from four distinct clades (PIF1, PIF3, PIF7, and PIF8). Promoter analysis implicated CsPIFs in integrating light, stress, hormone, and circadian signals. Most CsPIFs exhibited rapid increase in expression under shading, especially CsPIF7b/8a, which displayed significant changes in long-term shading condition. Under drought/salt stress, CsPIF3b emerged as a potential positive regulator. CsPIF3a was induced by low temperature and co-expressed with CsCBF1/3 and CsDREB2A cold response factors. Dual-luciferase assays confirmed that act as negative regulator of the CBF pathway. Expression profiling across 11 tea cultivars associated specific CsPIFs with chlorophyll biosynthesis and accumulation of anthocyanins, flavonols, and other metabolites. In summary, this study highlights the significance of CsPIFs as central coordinators in managing intricate transcriptional reactions to simultaneous abiotic stresses and metabolic adjustments in tea plants. This insight informs future strategies for enhancing this economically crucial crop through crop improvement initiatives.
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Affiliation(s)
- Shuai Sun
- College of Horticulture and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China; Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Peichen Wu
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Fuquan Gao
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Xiaomin Yu
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Ying Liu
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
| | - Chao Zheng
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
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3
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Li L, Wonder J, Helming T, van Asselt G, Pantazopoulou CK, van de Kaa Y, Kohlen W, Pierik R, Kajala K. Evaluation of the roles of brassinosteroid, gibberellin and auxin for tomato internode elongation in response to low red:far-red light. PHYSIOLOGIA PLANTARUM 2024; 176:e14558. [PMID: 39360434 DOI: 10.1111/ppl.14558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 09/13/2024] [Accepted: 09/19/2024] [Indexed: 10/04/2024]
Abstract
In this study, we explore the interplay between the plant hormones gibberellins (GA), brassinosteroids (BR), and Indole-3-Acetic Acid (IAA) in their collective impact on plant shade avoidance elongation under varying light conditions. We focus particularly on low Red:Far-red (R:FR) light conditions achieved by supplementing the background light with FR. We characterized the tomato internode response to low R:FR and, with RNA-seq analysis, we were able to identify some of the potential regulatory hormonal pathways. Through a series of exogenous pharmacological modulations of GA, IAA, and BR, we demonstrate that GA and BR are sufficient but also necessary for inducing stem elongation under low R:FR light conditions. Intriguingly, while IAA alone shows limited effects, its combination with GA yields significant elongation, suggesting a nuanced hormonal balance. Furthermore, we unveil the complex interplay of these hormones under light with low R:FR, where the suppression of one hormone's effect can be compensated by the others. This study provides insights into the hormonal mechanisms governing plant adaptation to light, highlighting the intricate and adaptable nature of plant growth responses. Our findings have far-reaching implications for agricultural practices, offering potential strategies for optimizing plant growth and productivity in various lighting environments.
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Affiliation(s)
- Linge Li
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Jesse Wonder
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Ticho Helming
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Gijs van Asselt
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Chrysoula K Pantazopoulou
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Yorrit van de Kaa
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Wouter Kohlen
- Laboratory of Cell and Developmental Biology, Cluster Plant Developmental Biology, Wageningen University & Research, Wageningen, PB, The Netherlands
| | - Ronald Pierik
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
| | - Kaisa Kajala
- Experimental & Computational Plant Development, Institute of Environmental Biology, Utrecht University, Utrecht, The Netherlands
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Su T, Liu H, Wu Y, Wang J, He F, Li H, Li S, Wang L, Li L, Cao J, Lu Q, Zhao X, Xiang H, Lin C, Lu S, Liu B, Kong F, Fang C. Soybean hypocotyl elongation is regulated by a MYB33-SWEET11/21-GA2ox8c module involving long-distance sucrose transport. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 38861663 DOI: 10.1111/pbi.14409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/01/2024] [Accepted: 05/27/2024] [Indexed: 06/13/2024]
Abstract
The length of hypocotyl affects the height of soybean and lodging resistance, thus determining the final grain yield. However, research on soybean hypocotyl length is scarce, and the regulatory mechanisms are not fully understood. Here, we identified a module controlling the transport of sucrose, where sucrose acts as a messenger moved from cotyledon to hypocotyl, regulating hypocotyl elongation. This module comprises four key genes, namely MYB33, SWEET11, SWEET21 and GA2ox8c in soybean. In cotyledon, MYB33 is responsive to sucrose and promotes the expression of SWEET11 and SWEET21, thereby facilitating sucrose transport from the cotyledon to the hypocotyl. Subsequently, sucrose transported from the cotyledon up-regulates the expression of GA2ox8c in the hypocotyl, which ultimately affects the length of the hypocotyl. During the domestication and improvement of soybean, an allele of MYB33 with enhanced abilities to promote SWEET11 and SWEET21 has gradually become enriched in landraces and cultivated varieties, SWEET11 and SWEET21 exhibit high conservation and have undergone a strong purified selection and GA2ox8c is under a strong artificial selection. Our findings identify a new molecular pathway in controlling soybean hypocotyl elongation and provide new insights into the molecular mechanism of sugar transport in soybean.
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Affiliation(s)
- Tong Su
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Huan Liu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Yichun Wu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Jianhao Wang
- Vegetables Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, China
| | - Fanglei He
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
- Institute of Improvement and Utilization of Characteristic Resource Plants, College of Agriculture and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Haiyang Li
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Shichen Li
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Lingshuang Wang
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Lanxin Li
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Jie Cao
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Qiulian Lu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Xiaohui Zhao
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Hongtao Xiang
- Heilongjiang Academy of Agricultural Sciences, Harbin, China
- Suihua Branch, Heilongjiang Academy of Agricultural Machinery Sciences, Suihua, China
| | - Chun Lin
- Institute of Improvement and Utilization of Characteristic Resource Plants, College of Agriculture and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Sijia Lu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Baohui Liu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Fanjiang Kong
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Chao Fang
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
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Qi X, Zhuang Z, Ji X, Bian J, Peng Y. The Mechanism of Exogenous Salicylic Acid and 6-Benzylaminopurine Regulating the Elongation of Maize Mesocotyl. Int J Mol Sci 2024; 25:6150. [PMID: 38892338 PMCID: PMC11172663 DOI: 10.3390/ijms25116150] [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: 04/08/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
The elongation of the mesocotyl plays an important role in the emergence of maize deep-sowing seeds. This study was designed to explore the function of exogenous salicylic acid (SA) and 6-benzylaminopurine (6-BA) in the growth of the maize mesocotyl and to examine its regulatory network. The results showed that the addition of 0.25 mmol/L exogenous SA promoted the elongation of maize mesocotyls under both 3 cm and 15 cm deep-sowing conditions. Conversely, the addition of 10 mg/L exogenous 6-BA inhibited the elongation of maize mesocotyls. Interestingly, the combined treatment of exogenous SA-6-BA also inhibited the elongation of maize mesocotyls. The longitudinal elongation of mesocotyl cells was the main reason affecting the elongation of maize mesocotyls. Transcriptome analysis showed that exogenous SA and 6-BA may interact in the hormone signaling regulatory network of mesocotyl elongation. The differential expression of genes related to auxin (IAA), jasmonic acid (JA), brassinosteroid (BR), cytokinin (CTK) and SA signaling pathways may be related to the regulation of exogenous SA and 6-BA on the growth of mesocotyls. In addition, five candidate genes that may regulate the length of mesocotyls were screened by Weighted Gene Co-Expression Network Analysis (WGCNA). These genes may be involved in the growth of maize mesocotyls through auxin-activated signaling pathways, transmembrane transport, methylation and redox processes. The results enhance our understanding of the plant hormone regulation of mesocotyl growth, which will help to further explore and identify the key genes affecting mesocotyl growth in plant hormone signaling regulatory networks.
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Affiliation(s)
- Xue Qi
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou 730070, China
| | - Zelong Zhuang
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiangzhuo Ji
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou 730070, China
| | - Jianwen Bian
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou 730070, China
| | - Yunling Peng
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou 730070, China
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Shor E, Vainstein A. Petunia PHYTOCHROME INTERACTING FACTOR 4/5 transcriptionally activates key regulators of floral scent. PLANT MOLECULAR BIOLOGY 2024; 114:66. [PMID: 38816626 PMCID: PMC11139750 DOI: 10.1007/s11103-024-01455-8] [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: 12/17/2023] [Accepted: 04/09/2024] [Indexed: 06/01/2024]
Abstract
Floral scent emission of petunia flowers is regulated by light conditions, circadian rhythms, ambient temperature and the phytohormones GA and ethylene, but the mechanisms underlying sensitivity to these factors remain obscure. PHYTOCHROME INTERACTING FACTORs (PIFs) have been well studied as components of the regulatory machinery for numerous physiological processes. Acting redundantly, they serve as transmitters of light, circadian, metabolic, thermal and hormonal signals. Here we identified and characterized the phylogenetics of petunia PIF family members (PhPIFs). PhPIF4/5 was revealed as a positive regulator of floral scent: TRV-based transient suppression of PhPIF4/5 in petunia petals reduced emission of volatiles, whereas transient overexpression increased scent emission. The mechanism of PhPIF4/5-mediated regulation of volatile production includes activation of the expression of genes encoding biosynthetic enzymes and a key positive regulator of the pathway, EMISSION OF BENZENOIDS II (EOBII). The PIF-binding motif on the EOBII promoter (G-box) was shown to be needed for this activation. As PhPIF4/5 homologues are sensors of dawn and expression of EOBII also peaks at dawn, the prior is proposed to be part of the diurnal control of the volatile biosynthetic machinery. PhPIF4/5 was also found to transcriptionally activate PhDELLAs; a similar positive effect of PIFs on DELLA expression was further confirmed in Arabidopsis seedlings. The PhPIF4/5-PhDELLAs feedback is proposed to fine-tune GA signaling for regulation of floral scent production.
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Affiliation(s)
- Ekaterina Shor
- Institute of Plant Sciences, ARO, Volcani Institute, Rishon Lezion, Israel
| | - Alexander Vainstein
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University, Rehovot, Israel.
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Wei H, Luo M, Deng J, Xiao Y, Yan H, Liu H, Li Y, Song Q, Xiao X, Shen J, Kong H, Sun F, Luo K. SPL16 and SPL23 mediate photoperiodic control of seasonal growth in Populus trees. THE NEW PHYTOLOGIST 2024; 241:1646-1661. [PMID: 38115785 DOI: 10.1111/nph.19485] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 11/12/2023] [Indexed: 12/21/2023]
Abstract
Perennial trees in boreal and temperate regions undergo growth cessation and bud set under short photoperiods, which are regulated by phytochrome B (phyB) photoreceptors and PHYTOCHROME INTERACTING FACTOR 8 (PIF8) proteins. However, the direct signaling components downstream of the phyB-PIF8 module remain unclear. We found that short photoperiods suppressed the expression of miR156, while upregulated the expression of miR156-targeted SQUAMOSA-PROMOTER BINDING PROTEIN-LIKE 16 (SPL16) and SPL23 in leaves and shoot apices of Populus trees. Accordingly, either overexpression of MIR156a/c or mutagenesis of SPL16/23 resulted in the attenuation of growth cessation and bud set under short days (SD), whereas overexpression of SPL16 and SPL23 conferred early growth cessation. We further showed that SPL16 and SPL23 directly suppressed FLOWERING LOCUS T2 (FT2) expression while promoted BRANCHED1 (BRC1.1 and BRC1.2) expression. Moreover, we revealed that PIF8.1/8.2, positive regulators of growth cessation, directly bound to promoters of MIR156a and MIR156c and inhibited their expression to modulate downstream pathways. Our results reveal a connection between the phyB-PIF8 module-mediated photoperiod perception and the miR156-SPL16/23-FT2/BRC1 regulatory cascades in SD-induced growth cessation. Our study provides insights into the rewiring of a conserved miR156-SPL module in the regulation of seasonal growth in Populus trees.
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Affiliation(s)
- Hongbin Wei
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Mengting Luo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Jiao Deng
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Yue Xiao
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Huiting Yan
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Huajie Liu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Yi Li
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Qin Song
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xingyue Xiao
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Junlong Shen
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Hanying Kong
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Fan Sun
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Keming Luo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China
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Cheng M, Yuan H, Wang R, Wang W, Zhang L, Fan F, Li S. Identification and characterization of BES1 genes involved in grain size development of Oryza sativa L. Int J Biol Macromol 2023; 253:127327. [PMID: 37820910 DOI: 10.1016/j.ijbiomac.2023.127327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/14/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
BES1 (BRI1-EMS-SUPPRESSOR1) defines a unique class of plant-specific transcription factors that plays an essential role in response to Brassinosteroids (BRs) signal induction pathways. In our study, we conducted genome-wide scanning and comprehensive characterization of the BES1 gene family in rice and other eukaryotes, leading to valuable findings. Molecular docking experiments showed that all OsBES1 genes in rice could directly bind to BR small molecules. Among the identified genes, OsBES1-4 exhibited a remarkable response as it consistently showed induction upon exposure to various phytohormones after treatment. Further functional verification of OsBES1-4 revealed its impact on grain size. Overexpression of OsBES1-4 resulted in increased grain size, as confirmed by cytological observations showing an increase in cell length and cell number. Moreover, we identified that OsBES1-4 plays a role in rice grain size development by binding to the BR response element in the promoter region of the OsBZR1 gene. Evolutionary analysis indicated differentiation of OsBES1-4 between indica and japonica rice varieties, suggesting natural selection during the domestication process of cultivated rice. Therefore, we conclude that OsBES1-4 plays a crucial role in regulating rice grain size and has the potential to be an important target in rice breeding programs, and haplotype analysis found that all OsBES1 genes were associated with grain size development, either thousand-grain weight, grain length, or grain width. Overall, these findings suggest that the BES1 genes are involved in the regulation of grain size development in rice, and the utilization of SNPs in the OsBES1-4 gene promoter could be a favorable option for distinguishing indica and japonica.
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Affiliation(s)
- Mingxing Cheng
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; Hongshan Laboratory of Hubei Province, China
| | - Huanran Yuan
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; Hongshan Laboratory of Hubei Province, China
| | - Ruihua Wang
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China
| | - Wei Wang
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China
| | - Licheng Zhang
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China
| | - Fengfeng Fan
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; Hongshan Laboratory of Hubei Province, China
| | - Shaoqing Li
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; Hongshan Laboratory of Hubei Province, China.
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9
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Xiong H, Lu D, Li Z, Wu J, Ning X, Lin W, Bai Z, Zheng C, Sun Y, Chi W, Zhang L, Xu X. The DELLA-ABI4-HY5 module integrates light and gibberellin signals to regulate hypocotyl elongation. PLANT COMMUNICATIONS 2023; 4:100597. [PMID: 37002603 PMCID: PMC10504559 DOI: 10.1016/j.xplc.2023.100597] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/21/2023] [Accepted: 03/28/2023] [Indexed: 05/29/2023]
Abstract
Plant growth is coordinately controlled by various environmental and hormonal signals, of which light and gibberellin (GA) signals are two critical factors with opposite effects on hypocotyl elongation. Although interactions between the light and GA signaling pathways have been studied extensively, the detailed regulatory mechanism of their direct crosstalk in hypocotyl elongation remains to be fully clarified. Previously, we reported that ABA INSENSITIVE 4 (ABI4) controls hypocotyl elongation through its regulation of cell-elongation-related genes, but whether it is also involved in GA signaling to promote hypocotyl elongation is unknown. In this study, we show that promotion of hypocotyl elongation by GA is dependent on ABI4 activation. DELLAs interact directly with ABI4 and inhibit its DNA-binding activity. In turn, ABI4 combined with ELONGATED HYPOCOTYL 5 (HY5), a key positive factor in light signaling, feedback regulates the expression of the GA2ox GA catabolism genes and thus modulates GA levels. Taken together, our results suggest that the DELLA-ABI4-HY5 module may serve as a molecular link that integrates GA and light signals to control hypocotyl elongation.
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Affiliation(s)
- Haibo Xiong
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China; Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing 100093, China
| | - Dandan Lu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China
| | - Zhiyuan Li
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China; Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing 100093, China
| | - Jianghao Wu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China
| | - Xin Ning
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China; Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing 100093, China
| | - Weijun Lin
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China; Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing 100093, China
| | - Zechen Bai
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Canhui Zheng
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China
| | - Yang Sun
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China
| | - Wei Chi
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing 100093, China
| | - Lixin Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China
| | - Xiumei Xu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Jinming Avenue, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China.
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10
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Liu M, Zhao Y, Fan P, Kong J, Wang Y, Xu X, Xu M, Wang L, Li S, Liang Z, Duan W, Dai Z. Grapevine plantlets respond to different monochromatic lights by tuning photosynthesis and carbon allocation. HORTICULTURE RESEARCH 2023; 10:uhad160. [PMID: 37719274 PMCID: PMC10500148 DOI: 10.1093/hr/uhad160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/27/2023] [Indexed: 09/19/2023]
Abstract
The quality of planting materials is the foundation for productivity, longevity, and berry quality of perennial grapevines with a long lifespan. Manipulating the nursery light spectrum may speed up the production of healthy and high-quality planting vines but the underlying mechanisms remain elusive. Herein, the effects of different monochromatic lights (green, blue, and red) on grapevine growth, leaf photosynthesis, whole-plant carbon allocation, and transcriptome reprograming were investigated with white light as control. Results showed that blue and red lights were favorable for plantlet growth in comparison with white light. Blue light repressed excessive growth, significantly increased the maximum net photosynthetic rate (Pn) of leaves by 39.58% and leaf specific weight by 38.29%. Red light increased the dry weight of the stem by 53.60%, the starch content of the leaf by 53.63%, and the sucrose content of the stem by 230%. Green light reduced all photosynthetic indexes of the grape plantlet. Photosynthetic photon flux density (PPFD)/Ci-Pn curves indicated that blue light affected photosynthetic rate depending on the light intensity and CO2 concentration. RNA-seq analysis of different organs (leaf, stem, and root) revealed a systematic transcriptome remodeling and VvCOP1 (CONSTITUTIVELY PHOTOMORPHOGENIC 1), VvHY5 (ELONGATED HYPOCOTYL5), VvHYH (HY5 HOMOLOG), VvELIP (early light-induced protein) and VvPIF3 (PHYTOCHROME INTERACTING FACTOR 3) may play important roles in this shoot-to-root signaling. Furthermore, the correlation network between differential expression genes and physiological traits indicated that VvpsbS (photosystem II subunit S), Vvpsb28 (photosystem II subunit 28), VvHYH, VvSUS4 (sucrose synthase 4), and VvALDA (fructose-bisphosphate aldolase) were pertinent candidate genes in responses to different light qualities. Our results provide a foundation for optimizing the light recipe of grape plantlets and strengthen the understanding of light signaling and carbon metabolism under different monochromatic lights.
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Affiliation(s)
- Menglong Liu
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Zhao
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peige Fan
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junhua Kong
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Yongjian Wang
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Xiaobo Xu
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meilong Xu
- Ningxia Horticulture Research Institute, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China
| | - Lijun Wang
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaohua Li
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenchang Liang
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Duan
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Zhanwu Dai
- State Key Laboratory of Plant Diversity and Specialty Crops, Beijing Key Laboratory of Grape Sciences and Enology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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11
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Qiu X, Sun G, Liu F, Hu W. Functions of Plant Phytochrome Signaling Pathways in Adaptation to Diverse Stresses. Int J Mol Sci 2023; 24:13201. [PMID: 37686008 PMCID: PMC10487518 DOI: 10.3390/ijms241713201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Phytochromes are receptors for red light (R)/far-red light (FR), which are not only involved in regulating the growth and development of plants but also in mediated resistance to various stresses. Studies have revealed that phytochrome signaling pathways play a crucial role in enabling plants to cope with abiotic stresses such as high/low temperatures, drought, high-intensity light, and salinity. Phytochromes and their components in light signaling pathways can also respond to biotic stresses caused by insect pests and microbial pathogens, thereby inducing plant resistance against them. Given that, this paper reviews recent advances in understanding the mechanisms of action of phytochromes in plant resistance to adversity and discusses the importance of modulating the genes involved in phytochrome signaling pathways to coordinate plant growth, development, and stress responses.
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Affiliation(s)
- Xue Qiu
- Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Jiujiang 332000, China; (X.Q.); (G.S.)
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Guanghua Sun
- Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Jiujiang 332000, China; (X.Q.); (G.S.)
| | - Fen Liu
- Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Jiujiang 332000, China; (X.Q.); (G.S.)
| | - Weiming Hu
- Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Jiujiang 332000, China; (X.Q.); (G.S.)
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12
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Panigrahy M. Editorial: Light, clock, flowering, and hormone pathways in attaining abiotic stress tolerance. FRONTIERS IN PLANT SCIENCE 2023; 14:1215517. [PMID: 37426977 PMCID: PMC10325636 DOI: 10.3389/fpls.2023.1215517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/14/2023] [Indexed: 07/11/2023]
Affiliation(s)
- Madhusmita Panigrahy
- School of Biological Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha, India
- Training School Complex, Homi Bhabha National Institute (HBNI), Mumbai, India
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13
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Liu Z, Mao L, Yang B, Cui Q, Dai Y, Li X, Chen Y, Dai X, Zou X, Ou L, Yang S. A multi-omics approach identifies bHLH71-like as a positive regulator of yellowing leaf pepper mutants exposed to high-intensity light. HORTICULTURE RESEARCH 2023; 10:uhad098. [PMID: 37426880 PMCID: PMC10323627 DOI: 10.1093/hr/uhad098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/04/2023] [Indexed: 07/11/2023]
Abstract
Light quality and intensity can have a significant impact on plant health and crop productivity. Chlorophylls and carotenoids are classes of plant pigments that are responsible for harvesting light energy and protecting plants from the damaging effects of intense light. Our understanding of the role played by plant pigments in light sensitivity has been aided by light-sensitive mutants that change colors upon exposure to light of variable intensity. In this study, we conducted transcriptomic, metabolomic, and hormone analyses on a novel yellowing mutant of pepper (yl1) to shed light on the molecular mechanism that regulates the transition from green to yellow leaves in this mutant upon exposure to high-intensity light. Our results revealed greater accumulation of the carotenoid precursor phytoene and the carotenoids phytofluene, antheraxanthin, and zeaxanthin in yl1 compared with wild-type plants under high light intensity. A transcriptomic analysis confirmed that enzymes involved in zeaxanthin and antheraxanthin biosynthesis were upregulated in yl1 upon exposure to high-intensity light. We also identified a single basic helix-loop-helix (bHLH) transcription factor, bHLH71-like, that was differentially expressed and positively correlated with light intensity in yl1. Silencing of bHLH71-like in pepper plants suppressed the yellowing phenotype and led to reduced accumulation of zeaxanthin and antheraxanthin. We propose that the yellow phenotype of yl1 induced by high light intensity could be caused by an increase in yellow carotenoid pigments, concurrent with a decrease in chlorophyll accumulation. Our results also suggest that bHLH71-like functions as a positive regulator of carotenoid biosynthesis in pepper.
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Affiliation(s)
- Zhoubin Liu
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Lianzhen Mao
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Bozhi Yang
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Qingzhi Cui
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Yunhua Dai
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Xueqiao Li
- Institute of Vegetables, Hainan Academy of Agricultural Sciences, Haikou 570100, China
| | - Yisong Chen
- Institute of Vegetables, Hainan Academy of Agricultural Sciences, Haikou 570100, China
| | - Xiongze Dai
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Xuexiao Zou
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Lijun Ou
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
| | - Sha Yang
- Engineering Research Center of Education, Ministry for Germplasm Innovation and Breeding New Varieties of Horticultural Crops, Key Laboratory for Vegetable Biology of Hunan Province, College of Horticulture, Hunan Agricultural University, Changsha 410125, China
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14
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Jiang HW, Peng KC, Hsu TY, Chiou YC, Hsieh HL. Arabidopsis FIN219/JAR1 interacts with phytochrome a under far-red light and jasmonates in regulating hypocotyl elongation via a functional demand manner. PLoS Genet 2023; 19:e1010779. [PMID: 37216398 DOI: 10.1371/journal.pgen.1010779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 05/09/2023] [Indexed: 05/24/2023] Open
Abstract
Integration of light and phytohormones is essential for plant growth and development. FAR-RED INSENSITIVE 219 (FIN219)/JASMONATE RESISTANT 1 (JAR1) participates in phytochrome A (phyA)-mediated far-red (FR) light signaling in Arabidopsis and is a jasmonate (JA)-conjugating enzyme for the generation of an active JA-isoleucine. Accumulating evidence indicates that FR and JA signaling integrate with each other. However, the molecular mechanisms underlying their interaction remain largely unknown. Here, the phyA mutant was hypersensitive to JA. The double mutant fin219-2phyA-211 showed a synergistic effect on seedling development under FR light. Further evidence revealed that FIN219 and phyA antagonized with each other in a mutually functional demand to modulate hypocotyl elongation and expression of light- and JA-responsive genes. Moreover, FIN219 interacted with phyA under prolonged FR light, and MeJA could enhance their interaction with CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) in the dark and FR light. FIN219 and phyA interaction occurred mainly in the cytoplasm, and they regulated their mutual subcellular localization under FR light. Surprisingly, the fin219-2 mutant abolished the formation of phyA nuclear bodies under FR light. Overall, these data identified a vital mechanism of phyA-FIN219-COP1 association in response to FR light, and MeJA may allow the photoactivated phyA to trigger photomorphogenic responses.
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Affiliation(s)
- Han-Wei Jiang
- Institute of Plant Biology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Kai-Chun Peng
- Institute of Plant Biology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Ting-Yu Hsu
- Institute of Plant Biology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yen-Chang Chiou
- Institute of Plant Biology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Hsu-Liang Hsieh
- Institute of Plant Biology, College of Life Science, National Taiwan University, Taipei, Taiwan
- Department of Life Science, College of Life Science, National Taiwan University, Taipei, Taiwan
- Master Program in Global Agriculture Technology and Genomic Science, National Taiwan University, Taipei, Taiwan
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15
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Liu D, Yan G, Wang S, Yu L, Lin W, Lu S, Guo L, Yang QY, Dai C. Comparative transcriptome profiling reveals the multiple levels of crosstalk in phytohormone networks in Brassica napus. PLANT BIOTECHNOLOGY JOURNAL 2023. [PMID: 37154465 PMCID: PMC10363766 DOI: 10.1111/pbi.14063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 04/13/2023] [Accepted: 04/12/2023] [Indexed: 05/10/2023]
Abstract
Plant hormones are the intrinsic factors that control plant development. The integration of different phytohormone pathways in a complex network of synergistic, antagonistic and additive interactions has been elucidated in model plants. However, the systemic level of transcriptional responses to hormone crosstalk in Brassica napus is largely unknown. Here, we present an in-depth temporal-resolution study of the transcriptomes of the seven hormones in B. napus seedlings. Differentially expressed gene analysis revealed few common target genes that co-regulated (up- and down-regulated) by seven hormones; instead, different hormones appear to regulate distinct members of protein families. We then constructed the regulatory networks between the seven hormones side by side, which allowed us to identify key genes and transcription factors that regulate the hormone crosstalk in B. napus. Using this dataset, we uncovered a novel crosstalk between gibberellin and cytokinin in which cytokinin homeostasis was mediated by RGA-related CKXs expression. Moreover, the modulation of gibberellin metabolism by the identified key transcription factors was confirmed in B. napus. Furthermore, all data were available online from http://yanglab.hzau.edu.cn/BnTIR/hormone. Our study reveals an integrated hormone crosstalk network in Brassica napus, which also provides a versatile resource for future hormone studies in plant species.
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Affiliation(s)
- Dongxu Liu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, China
| | - Guanbo Yan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Shengbo Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, China
| | - Liangqian Yu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Wei Lin
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, China
| | - Shaoping Lu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Liang Guo
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Qing-Yong Yang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, China
| | - Cheng Dai
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
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16
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Sineshchekov VA. Two Distinct Molecular Types of Phytochrome A in Plants: Evidence of Existence and Implications for Functioning. Int J Mol Sci 2023; 24:ijms24098139. [PMID: 37175844 PMCID: PMC10179679 DOI: 10.3390/ijms24098139] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Phytochrome (phy) system in plants comprising a small number of phytochromes with phyA and phyB as major ones is responsible for acquiring light information in the red-far-red region of the solar spectrum. It provides optimal strategy for plant development under changing light conditions throughout all its life cycle beginning from seed germination and seedling establishment to fruiting and plant senescence. The phyA was shown to participate in the regulation of this cycle which is especially evident at its early stages. It mediates three modes of reactions-the very low and low fluence responses (VLFR and LFR) and the high irradiance responses (HIR). The phyA is the sole light receptor in the far-red spectral region responsible for plant's survival under a dense plant canopy where light is enriched with the far-red component. Its appearance is believed to be one of the main factors of plants' successful evolution. So far, it is widely accepted that one molecular phyA species is responsible for its complex functional manifestations. In this review, the evidence of the existence of two distinct phyA types-major, light-labile and soluble phyA' and minor, relatively light-stable and amphiphilic phyA″-is presented as what may account for the diverse modes of phyA action.
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Sineshchekov VA. Two Distinct Molecular Types of Phytochrome A in Plants: Evidence of Existence and Implications for Functioning. Int J Mol Sci 2023; 24:8139. [DOI: https:/doi.org/10.3390/ijms24098139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023] Open
Abstract
Phytochrome (phy) system in plants comprising a small number of phytochromes with phyA and phyB as major ones is responsible for acquiring light information in the red—far-red region of the solar spectrum. It provides optimal strategy for plant development under changing light conditions throughout all its life cycle beginning from seed germination and seedling establishment to fruiting and plant senescence. The phyA was shown to participate in the regulation of this cycle which is especially evident at its early stages. It mediates three modes of reactions—the very low and low fluence responses (VLFR and LFR) and the high irradiance responses (HIR). The phyA is the sole light receptor in the far-red spectral region responsible for plant’s survival under a dense plant canopy where light is enriched with the far-red component. Its appearance is believed to be one of the main factors of plants′ successful evolution. So far, it is widely accepted that one molecular phyA species is responsible for its complex functional manifestations. In this review, the evidence of the existence of two distinct phyA types—major, light-labile and soluble phyA′ and minor, relatively light-stable and amphiphilic phyA″—is presented as what may account for the diverse modes of phyA action.
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18
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Zhu L, Wang H, Zhu J, Wang X, Jiang B, Hou L, Xiao G. A conserved brassinosteroid-mediated BES1-CERP-EXPA3 signaling cascade controls plant cell elongation. Cell Rep 2023; 42:112301. [PMID: 36952343 DOI: 10.1016/j.celrep.2023.112301] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 02/05/2023] [Accepted: 03/06/2023] [Indexed: 03/24/2023] Open
Abstract
Continuous plant growth is achieved by cell division and cell elongation. Brassinosteroids control cell elongation and differentiation throughout plant life. However, signaling cascades underlying BR-mediated cell elongation are unknown. In this study, we introduce cotton fiber, one of the most representative single-celled tissues, to decipher cell-specific BR signaling. We find that gain of function of GhBES1, a key transcriptional activator in BR signaling, enhances fiber elongation. The chromatin immunoprecipitation sequencing analysis identifies a cell-elongation-related protein, GhCERP, whose transcription is directly activated by GhBES1. GhCERP, a downstream target of GhBES1, transmits the GhBES1-mediated BR signaling to its target gene, GhEXPA3-1. Ultimately, GhEXPA3-1 promotes fiber cell elongation. In addition, inter-species functional analysis of the BR-mediated BES1-CERP-EXPA3 signaling cascade also promotes Arabidopsis root and hypocotyl growth. We propose that the BES1-CERP-EXPA3 module may be a broad-spectrum pathway that is universally exploited by diverse plant species to regulate BR-promoted cell elongation.
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Affiliation(s)
- Liping Zhu
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Huiqin Wang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Jiaojie Zhu
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Xiaosi Wang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Bin Jiang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Liyong Hou
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Guanghui Xiao
- College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China.
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Liu H, Zhou C, Nisa ZU, El-Kassaby YA, Li W. Exogenous 6-BA inhibited hypocotyl elongation under darkness in Picea crassifolia Kom revealed by transcriptome profiling. FRONTIERS IN PLANT SCIENCE 2023; 14:1086879. [PMID: 36923127 PMCID: PMC10009258 DOI: 10.3389/fpls.2023.1086879] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Hypocotyl elongation is an important process in plant growth and development, and is under hormonal regulatory signaling pathways. In our study, exogenous 6-BA significantly inhibited Picea crassifolia hypocotyl elongation more than ethylene in the dark, indicating the existence of different regulatory strategies in conifers, therefore, the P. crassifolia transcriptome was studied to explore the responsive genes and their regulatory pathways for exogenous N6-benzyladenine (6-BA) inhibition of hypocotyl elongation using RNA-Sequencing approach. We present the first transcriptome assembly of P. crassifolia obtained from 24.38 Gb clean data. With lowly-expressed and short contigs excluded, the assembly contains roughly 130,612 unigenes with an N50 length of 1,278 bp. Differential expression analysis found 3,629 differentially expressed genes (DEGs) and found that the differential expression fold of genes was mainly concentrated between 2 and 8 (1 ≤ log2FoldChange ≤ 3). Functional annotation showed that the GO term with the highest number of enriched genes (83 unigenes) was the shoot system development (GO: 0048367) and the KEGG category, plant hormone signal transduction (ko04075), was enriched 30 unigenes. Further analysis revealed that several cytokinin dehydrogenase genes (PcCTD1, PcCTD3 and PcCTD6) catabolized cytokinins, while xyloglucan endotransglucosylase hydrolase gene (PcXTH31), WALLS ARE THIN 1-like gene (PcWAT1-1) and Small auxin-induced gene (PcSAUR15) were strongly repressed thus synergistically completing the inhibition of hypocotyl elongation in P. crassifolia. Besides, PcbHLH149, PcMYB44 and PcERF14 were predicted to be potential core TFs that may form a multi-layered regulatory network with the above proteins for the regulation of hypocotyl growth.
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Affiliation(s)
- Hongmei Liu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Chengcheng Zhou
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Zaib Un Nisa
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- Cotton Research Institute, Multan, Punjab, Pakistan
| | - Yousry A. El-Kassaby
- Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, Vancouver, BC, Canada
| | - Wei Li
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
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Chen E, Yang X, Liu R, Zhang M, Zhang M, Zhou F, Li D, Hu H, Li C. GhBEE3-Like gene regulated by brassinosteroids is involved in cotton drought tolerance. FRONTIERS IN PLANT SCIENCE 2022; 13:1019146. [PMID: 36311136 PMCID: PMC9606830 DOI: 10.3389/fpls.2022.1019146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Brassinosteroids (BRs) are important phytohormones that play a vital role in plant drought tolerance, but their mechanisms in cotton (Gossypium hirsutum L.) are poorly understood. Numerous basic helix-loop-helix (bHLH) family genes are involved in the responses to both BRs and drought stress. GhBEE3-Like, a bHLH transcription factor, is repressed by both 24-epi-BL (an active BR substance) and PEG8000 (drought simulation) treatments in cotton. Moreover, GhBZR1, a crucial transcription factor in BR signaling pathway, directly binds to the E-box element in GhBEE3-Like promoter region and inhibits its expression, which has been confirmed by electrophoretic mobility shift assay (EMSA) and dual luciferase reporter assay. Functional analysis revealed that Arabidopsis with GhBEE3-Like overexpression had drought sensitive phenotype, while GhBEE3-Like knock-down cotton plants obtained by virus-induced gene silencing (VIGS) technology were more tolerant to drought stress. Furthermore, the expression levels of three stress-related genes, GhERD10, GhCDPK1 and GhRD26, were significantly higher in GhBEE3-Like knock-down cotton than in control cotton after drought treatment. These results suggest that GhBEE3-Like is inhibited by BRs which elevates the expressions of stress-related genes to enhance plant drought tolerance. This study lays the foundation for understanding the mechanisms of BR-regulated drought tolerance and establishment of drought-resistant cotton lines.
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Affiliation(s)
- Eryong Chen
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Xiaobei Yang
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Ruie Liu
- Shanghai Center for Plant Stress Biology, National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Mengke Zhang
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Meng Zhang
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Feng Zhou
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Dongxiao Li
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Haiyan Hu
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Chengwei Li
- Henan Engineering Research Center of Crop Genome Editing, School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
- College of Biological Engineering, Henan University of Technology, Zhengzhou, China
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Wang XR, Wang YH, Jia M, Zhang RR, Liu H, Xu ZS, Xiong AS. The phytochrome-interacting factor DcPIF3 of carrot plays a positive role in drought stress by increasing endogenous ABA level in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 322:111367. [PMID: 35788027 DOI: 10.1016/j.plantsci.2022.111367] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 05/22/2023]
Abstract
The phytochrome-interacting factor (PIF) subfamily of basic helix-loop-helix (bHLH) transcription factors plays a critical role in plant growth and development. However, there has been no detailed report on the PIFs in carrot. In this study, we present the identification and characterization of DcPIF gene family in carrot (Daucus carota L.). Phylogenetic analysis indicated that PIFs from carrot and other five plant species could be divided into four groups supported by similar gene structure and motif analysis. Expression profiles showed that all DcPIF genes were tissue-specific and could be induced by drought or abscisic acid (ABA) treatment except DcPIF7.1, among which DcPIF3 was the most responsive. The DcPIF3-overexpressed Arabidopsis plants exhibited more tolerance to drought stress, with higher antioxidant capacity and lower malondialdehyde content after drought treatment than wild type plants. Further stress tolerance assays revealed that DcPIF3 plays a positive role in drought stress by increasing endogenous ABA level and promoting the expression of ABA-related genes. Our results can enrich the understanding of DcPIF family genes and lay a foundation for further investigation of DcPIF3 function to defend against drought stress in carrot.
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Affiliation(s)
- Xin-Rui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ya-Hui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Min Jia
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Rong-Rong Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Hui Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Zhi-Sheng Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
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22
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Ghosh S, Nelson JF, Cobb GMC, Etchells JP, de Lucas M. Light regulates xylem cell differentiation via PIF in Arabidopsis. Cell Rep 2022; 40:111075. [PMID: 35858547 PMCID: PMC9638722 DOI: 10.1016/j.celrep.2022.111075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 01/15/2022] [Accepted: 06/18/2022] [Indexed: 11/23/2022] Open
Abstract
The balance between cell proliferation and differentiation in the cambium defines the formation of plant vascular tissues. As cambium cells proliferate, subsets of daughter cells differentiate into xylem or phloem. TDIF-PXY/TDR signaling is central to this process. TDIF, encoded by CLE41 and CLE44, activates PXY/TDR receptors to maintain proliferative cambium. Light and water are necessary for photosynthesis; thus, vascular differentiation must occur upon light perception to facilitate the transport of water and minerals to the photosynthetic tissues. However, the molecular mechanism controlling vascular differentiation in response to light remains elusive. In this study we show that the accumulation of PIF transcription factors in the dark promotes TDIF signaling and inhibits vascular cell differentiation. On the contrary, PIF inactivation by light leads to a decay in TDIF activity, which induces vascular cell differentiation. Our study connects light to vascular differentiation and highlights the importance of this crosstalk to fine-tune water transport. Active CLE peptide TDIF inhibits xylem differentiation in etiolated seedlings The expression of the TDIF precursor CLE44 is rapidly inhibited by light PIF transcription factors are necessary for TDIF expression in the dark Blue light signaling prevents TDIF expression, which promotes xylem differentiation
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Affiliation(s)
- Shraboni Ghosh
- Department of Biosciences, Durham University, Durham DH1 3LE, UK
| | - Joseph F Nelson
- Department of Biosciences, Durham University, Durham DH1 3LE, UK
| | | | - J Peter Etchells
- Department of Biosciences, Durham University, Durham DH1 3LE, UK
| | - Miguel de Lucas
- Department of Biosciences, Durham University, Durham DH1 3LE, UK.
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23
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Kim DH, Lee SW, Moon H, Choi D, Kim S, Kang H, Kim J, Choi G, Huq E. ABI3- and PIF1-mediated regulation of GIG1 enhances seed germination by detoxification of methylglyoxal in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:1578-1591. [PMID: 35365944 DOI: 10.1111/tpj.15755] [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: 11/30/2021] [Revised: 02/22/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Methylglyoxal (MG) is a toxic by-product of the glycolysis pathway in most living organisms and was previously shown to inhibit seed germination. MG is detoxified by glyoxalase I and II family proteins in plants. MG is abundantly produced during early embryogenesis in Arabidopsis seeds. However, the mechanism that alleviates the toxic effect of MG in maturing seeds is poorly understood. In this study, by T-DNA mutant population screening, we found that mutations in a glyoxalase I gene (named GERMINATION-IMPAIRED GLYOXALASE 1, GIG1) led to significantly impaired germination compared with wild-type seeds. Transformation of full-length GIG1 cDNA under the constitutively active cauliflower mosaic virus 35S promoter in the gig1 background completely recovered the seed germination phenotype. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) analyses revealed that GIG1 is uniquely expressed in seeds and is upregulated by abscisic acid (ABA) and downregulated by gibberellic acid (GA) during seed germination. An ABA signaling component, ABI3, directly activated GIG1 in maturing seeds. In addition, PHYTOCHROME INTERACTING FACTOR 1 (PIF1) also plays cooperatively with ABI3 in the regulation of GIG1 expression in the early stage of imbibed seeds. Furthermore, GIG1 expression is stably silenced by epigenetic repressors such as polycomb repressor complexes. Altogether, our results indicate that light and ABA signaling cooperate to enhance seed germination by the upregulation of GIG1 to detoxify MG in maturing seeds.
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Affiliation(s)
- Dong-Hwan Kim
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang Woo Lee
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul, 08826, Republic of Korea
| | - Heewon Moon
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Dasom Choi
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Sujeong Kim
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Hajeong Kang
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Jungtae Kim
- Department of Plant Science and Technology, College of Biotechnology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Giltsu Choi
- Department of Biological Sciences, KAIST, Daejeon, 34141, Republic of Korea
| | - Enamul Huq
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, 78712, USA
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Liu Y, Zhang XW, Liu X, Zheng PF, Su L, Wang GL, Wang XF, Li YY, You CX, An JP. Phytochrome interacting factor MdPIF7 modulates anthocyanin biosynthesis and hypocotyl growth in apple. PLANT PHYSIOLOGY 2022; 188:2342-2363. [PMID: 34983053 PMCID: PMC8968312 DOI: 10.1093/plphys/kiab605] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/26/2021] [Indexed: 06/10/2023]
Abstract
Light affects many physiological and developmental processes of plants by regulating the expression and activity of light-responsive proteins. Among them, phytochrome interacting factors (PIFs) play pivotal roles in the regulation of anthocyanin accumulation and hypocotyl growth. However, the molecular mechanism is not well understood, especially in woody plants, such as apple (Malus × domestica). In this study, we identified a light-responsive PIF protein, MdPIF7, in apple and investigated the molecular mechanism of its regulation of anthocyanin biosynthesis and hypocotyl growth. We found that overexpression of MdPIF7 decreased anthocyanin accumulation in transgenic apple materials and promoted hypocotyl elongation in ectopically expressed Arabidopsis (Arabidopsis thaliana). Further investigation showed that MdPIF7 functioned by interacting with B-box 23 (MdBBX23), a positive regulator of anthocyanin biosynthesis in apple and hypocotyl growth inhibition in ectopically expressed Arabidopsis, and attenuating the transcriptional activation of MdBBX23 on LONG HYPOCOTYL 5 (MdHY5). In addition, MdPIF7 interacted with basic region leucine zipper 44 (MdbZIP44) and ethylene response factor 38 (MdERF38), two positive regulators of anthocyanin biosynthesis, and it negatively regulated MdbZIP44- and MdERF38-promoted anthocyanin accumulation by interfering with the interaction between MdbZIP44/MdERF38 and MdMYB1. Taken together, our results reveal that MdPIF7 regulates anthocyanin biosynthesis in apple and hypocotyl growth in ectopically expressed Arabidopsis through MdPIF7-MdBBX23-MdHY5 and MdPIF7-MdbZIP44/MdERF38-MdMYB1 modules. Our findings enrich the functional studies of PIF proteins and provide insights into the molecular mechanism of PIF-mediated anthocyanin biosynthesis and hypocotyl growth.
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Affiliation(s)
- Yankai Liu
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Xiao-Wei Zhang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Xin Liu
- Beijing Academy of Forestry and Pomology Sciences, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100093, China
| | - Peng-Fei Zheng
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Ling Su
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong, China
| | - Gui-Luan Wang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Xiao-Fei Wang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Yuan-Yuan Li
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Chun-Xiang You
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
| | - Jian-Ping An
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong, China
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Zhao X, Sun XF, Zhao LL, Huang LJ, Wang PC. Morphological, transcriptomic and metabolomic analyses of Sophora davidii mutants for plant height. BMC PLANT BIOLOGY 2022; 22:144. [PMID: 35337273 PMCID: PMC8951708 DOI: 10.1186/s12870-022-03503-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/02/2022] [Indexed: 05/28/2023]
Abstract
Sophora davidii is an important plant resource in the karst region of Southwest China, but S. davidii plant-height mutants are rarely reported. Therefore, we performed phenotypic, anatomic structural, transcriptomic and metabolomic analyses to study the mechanisms responsible for S. davidii plant-height mutants. Phenotypic and anatomical observations showed that compared to the wild type, the dwarf mutant displayed a significant decrease in plant height, while the tall mutant displayed a significant increase in plant height. The dwarf mutant cells were smaller and more densely arranged, while those of the wild type and the tall mutant were larger and loosely arranged. Transcriptomic analysis revealed that differentially expressed genes (DEGs) involved in cell wall biosynthesis, expansion, phytohormone biosynthesis, signal transduction pathways, flavonoid biosynthesis and phenylpropanoid biosynthesis were significantly enriched in the S. davidii plant-height mutants. Metabolomic analysis revealed 57 significantly differential metabolites screened from both the dwarf and tall mutants. A total of 8 significantly different flavonoid compounds were annotated to LIPID MAPS, and three metabolites (chlorogenic acid, kaempferol and scopoletin) were involved in phenylpropanoid biosynthesis and flavonoid biosynthesis. These results shed light on the molecular mechanisms of plant height in S. davidii mutants and provide insight for further molecular breeding programs.
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Affiliation(s)
- Xin Zhao
- College of Animal Science, Guizhou University, Guiyang, 550025, China
| | - Xiao-Fu Sun
- Weining Plateau Grassland Test Station, Weining, 553100, China
| | - Li-Li Zhao
- College of Animal Science, Guizhou University, Guiyang, 550025, China.
| | - Li-Juan Huang
- College of Animal Science, Guizhou University, Guiyang, 550025, China
| | - Pu-Chang Wang
- Guizhou Institute of Prataculture, Guiyang, 550006, China.
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26
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Yang J, Wu Y, Li L, Li C. Comprehensive analysis of the BES1 gene family and its expression under abiotic stress and hormone treatment in Populus trichocarpa. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 173:1-13. [PMID: 35085861 DOI: 10.1016/j.plaphy.2022.01.019] [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: 10/28/2021] [Revised: 01/11/2022] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
The BRI1 EMS SUPPRESSOR 1/BRASSINAZOLE RESISTANT 1 (BES1/BZR1) plays a vital role in plant growth and development and stress responses, but there are few studies on poplar BES1 genes. In this study, we identified 14 BES1 genes in the Populus trichocarpa genome and analyzed the expression under hormone treatment and abiotic stress. The PtrBES1 genes were classified into seven subgroups (I-VII) through phylogenetic analysis. All the paralogous gene pairs were shown to be subjected to expansion by segment duplication and purification selection during the PtrBES1 family evolution. Promoter cis-element analysis showed that the PtrBES1 promoter contains stress related cis-elements including ABRE-motif, MBS and TC-rich elements. Quantitative real time reverse transcription PCR (RT-qPCR) analysis showed that the PtrBES1 genes were upregulated upon NaCl, Polyethylene glycol 6000 (PEG6000) stress as well as the major stress hormone abscisic acid (ABA) treatment. Under the three treatments, PtrBES1-7 showed high expression levels in leaves and roots. Physiological experiments showed that the overexpression PtrBES1-7 line could enhance tolerance to drought stress in P. trichocarpa by improving the ability to scavenge ROS (reactive oxygen species). This is specifically reflected in the fact that the overexpression line contains less ROS (O2- and H2O2) and more antioxidant enzymes (1.42 times SOD and 1.5 times POD) than the control line. The preliminary results of this study provided a solid basis for the future functional studies of the BES1 gene family in P. trichocarpa.
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Affiliation(s)
- Jia Yang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Ye Wu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Lu Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Chenghao Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China.
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Bouché F, Woods DP, Linden J, Li W, Mayer KS, Amasino RM, Périlleux C. EARLY FLOWERING 3 and Photoperiod Sensing in Brachypodium distachyon. FRONTIERS IN PLANT SCIENCE 2022; 12:769194. [PMID: 35069625 PMCID: PMC8770904 DOI: 10.3389/fpls.2021.769194] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/13/2021] [Indexed: 05/26/2023]
Abstract
The proper timing of flowering, which is key to maximize reproductive success and yield, relies in many plant species on the coordination between environmental cues and endogenous developmental programs. The perception of changes in day length is one of the most reliable cues of seasonal change, and this involves the interplay between the sensing of light signals and the circadian clock. Here, we describe a Brachypodium distachyon mutant allele of the evening complex protein EARLY FLOWERING 3 (ELF3). We show that the elf3 mutant flowers more rapidly than wild type plants in short days as well as under longer photoperiods but, in very long (20 h) days, flowering is equally rapid in elf3 and wild type. Furthermore, flowering in the elf3 mutant is still sensitive to vernalization, but not to ambient temperature changes. Molecular analyses revealed that the expression of a short-day marker gene is suppressed in elf3 grown in short days, and the expression patterns of clock genes and flowering time regulators are altered. We also explored the mechanisms of photoperiodic perception in temperate grasses by exposing B. distachyon plants grown under a 12 h photoperiod to a daily night break consisting of a mixture of red and far-red light. We showed that 2 h breaks are sufficient to accelerate flowering in B. distachyon under non-inductive photoperiods and that this acceleration of flowering is mediated by red light. Finally, we discuss advances and perspectives for research on the perception of photoperiod in temperate grasses.
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Affiliation(s)
- Frédéric Bouché
- Laboratory of Plant Physiology, InBioS-PhytoSYSTEMS, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Daniel P. Woods
- Plant Sciences Department, University of California, Davis, Davis, CA, United States
- Laboratory of Genetics, University of Wisconsin, Madison, WI, United States
- Department of Biochemistry, University of Wisconsin, Madison, WI, United States
- United States Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, WI, United States
- Howard Hughes Medical Institute, Chevy Chase, MD, United States
| | - Julie Linden
- Laboratory of Plant Physiology, InBioS-PhytoSYSTEMS, Department of Life Sciences, University of Liège, Liège, Belgium
| | - Weiya Li
- Department of Biochemistry, University of Wisconsin, Madison, WI, United States
| | - Kevin S. Mayer
- Laboratory of Genetics, University of Wisconsin, Madison, WI, United States
| | - Richard M. Amasino
- Laboratory of Genetics, University of Wisconsin, Madison, WI, United States
- Department of Biochemistry, University of Wisconsin, Madison, WI, United States
- United States Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, WI, United States
| | - Claire Périlleux
- Laboratory of Plant Physiology, InBioS-PhytoSYSTEMS, Department of Life Sciences, University of Liège, Liège, Belgium
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Rui C, Zhang Y, Fan Y, Han M, Dai M, Wang Q, Chen X, Lu X, Wang D, Wang S, Gao W, Yu JZ, Ye W. Insight Between the Epigenetics and Transcription Responding of Cotton Hypocotyl Cellular Elongation Under Salt-Alkaline Stress. FRONTIERS IN PLANT SCIENCE 2021; 12:772123. [PMID: 34868171 PMCID: PMC8632653 DOI: 10.3389/fpls.2021.772123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
Gossypium barbadense is a cultivated cotton not only known for producing superior fiber but also for its salt and alkaline resistance. Here, we used Whole Genome Bisulfite Sequencing (WGBS) technology to map the cytosine methylation of the whole genome of the G. barbadense hypocotyl at single base resolution. The methylation sequencing results showed that the mapping rates of the three samples were 75.32, 77.54, and 77.94%, respectively. In addition, the Bisulfite Sequence (BS) conversion rate was 99.78%. Approximately 71.03, 53.87, and 6.26% of the cytosine were methylated at CG, CHG, and CHH sequence contexts, respectively. A comprehensive analysis of DNA methylation and transcriptome data showed that the methylation level of the promoter region was a positive correlation in the CHH context. Saline-alkaline stress was related to the methylation changes of many genes, transcription factors (TFs) and transposable elements (TEs), respectively. We explored the regulatory mechanism of DNA methylation in response to salt and alkaline stress during cotton hypocotyl elongation. Our data shed light into the relationship of methylation regulation at the germination stage of G. barbadense hypocotyl cell elongation and salt-alkali treatment. The results of this research help understand the early growth regulation mechanism of G. barbadense in response to abiotic stress.
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Affiliation(s)
- Cun Rui
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
- Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, Ürümqi, China
| | - Yuexin Zhang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Yapeng Fan
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Mingge Han
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Maohua Dai
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Qinqin Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Xiugui Chen
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Xuke Lu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Delong Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Shuai Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
| | - Wenwei Gao
- Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, Ürümqi, China
| | - John Z. Yu
- Crop Germplasm Research Unit, Southern Plains Agricultural Research Center, United States Department of Agriculture-Agricultural Research Service (USDA-ARS), College Station, TX, United States
| | - Wuwei Ye
- State Key Laboratory of Cotton Biology/Institute of Cotton Research of Chinese Academy of Agricultural Sciences/Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University/Key Laboratory for Cotton Genetic Improvement, MOA, Anyang, China
- Engineering Research Centre of Cotton, Ministry of Education/College of Agriculture, Xinjiang Agricultural University, Ürümqi, China
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Kusuma P, Bugbee B. Improving the Predictive Value of Phytochrome Photoequilibrium: Consideration of Spectral Distortion Within a Leaf. FRONTIERS IN PLANT SCIENCE 2021; 12:596943. [PMID: 34108976 PMCID: PMC8181145 DOI: 10.3389/fpls.2021.596943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 04/28/2021] [Indexed: 06/01/2023]
Abstract
The ratio of active phytochrome (Pfr) to total phytochrome (Pr + Pfr), called phytochrome photo-equilibrium (PPE; also called phytochrome photostationary state, PSS) has been used to explain shade avoidance responses in both natural and controlled environments. PPE is commonly estimated using measurements of the spectral photon distribution (SPD) above the canopy and photoconversion coefficients. This approach has effectively predicted morphological responses when only red and far-red (FR) photon fluxes have varied, but controlled environment research often utilizes unique ratios of wavelengths so a more rigorous evaluation of the predictive ability of PPE on morphology is warranted. Estimations of PPE have rarely incorporated the optical effects of spectral distortion within a leaf caused by pigment absorbance and photon scattering. We studied stem elongation rate in the model plant cucumber under diverse spectral backgrounds over a range of one to 45% FR (total photon flux density, 400-750 nm, of 400 μmol m-2 s-1) and found that PPE was not predictive when blue and green varied. Preferential absorption of red and blue photons by chlorophyll results in an SPD that is relatively enriched in green and FR at the phytochrome molecule within a cell. This can be described by spectral distortion functions for specific layers of a leaf. Multiplying the photoconversion coefficients by these distortion functions yields photoconversion weighting factors that predict phytochrome conversion at the site of photon perception within leaf tissue. Incorporating spectral distortion improved the predictive value of PPE when phytochrome was assumed to be homogeneously distributed within the whole leaf. In a supporting study, the herbicide norflurazon was used to remove chlorophyll in seedlings. Using distortion functions unique to either green or white cotyledons, we came to the same conclusions as with whole plants in the longer-term study. Leaves of most species have similar spectral absorbance so this approach for predicting PPE should be broadly applicable. We provide a table of the photoconversion weighting factors. Our analysis indicates that the simple, intuitive ratio of FR (700-750 nm) to total photon flux (far-red fraction) is also a reliable predictor of morphological responses like stem length.
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Sineshchekov V, Koppel L, Riemann M, Nick P. Phytochrome A and its Functional Manifestations in Etiolated and Far‐red Light‐grown Seedlings of the Wild‐type Rice and its Hebiba and Cpm2 Mutants Deficient in the Defense‐related Phytohormone Jasmonic Acid. Photochem Photobiol 2021; 97:335-342. [DOI: https:/doi.org/10.1111/php.13340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/30/2020] [Indexed: 12/17/2023]
Abstract
AbstractInteraction between phytochromes and hormones is becoming one of the major issues in plant photophysiology. In this work, effects of defense‐related jasmonic acid (JA) on phytochrome A (phyA) were investigated by fluorescence spectroscopy making use of two JA biosynthesis mutants of rice: cpm2 with the inactivated gene allene oxide cyclase and hebiba with additional genes deleted. Constant far‐red light (FRc) mediated by phyA reduced its content in the wild type (WT) and mutants, and brought about domination of its light‐stable pool (phyA″) in WT and light‐labile pool (phyA′) in the mutants. Pulsed FRp was much less effective. This FR effect classifies as primarily HIR with a low fluence threshold; it comprises inhibition of phyA biosynthesis, stimulation of phyA″→phyA′ transformation and phyA′ destruction. In the mutants, phyA suppresses [Pchlide] under FRp (VLFR) and stimulates it under FRc (HIR); these effects are lacking in WT. Similarly, phyA suppresses roots'growth under FRp in the mutants but not in WT. These JA mutant features suggest that JA reduces the phyA functional activity primarily in its phyA″ form mediating HIR. This modulating JA action on phyA functions under FR limiting their extreme manifestations may have contributed to the evolutionary advances of the land plants.
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Affiliation(s)
- Vitaly Sineshchekov
- Biology Department of the M. V. Lomonosov Moscow State University Moscow 119899 Russia
| | - Larissa Koppel
- Biology Department of the M. V. Lomonosov Moscow State University Moscow 119899 Russia
| | - Michael Riemann
- Botanical Institute 1 University of Karlsruhe Karlsruhe 76131 Germany
| | - Peter Nick
- Botanical Institute 1 University of Karlsruhe Karlsruhe 76131 Germany
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Wang X, Liu Y, Huai D, Chen Y, Jiang Y, Ding Y, Kang Y, Wang Z, Yan L, Jiang H, Lei Y, Liao B. Genome-wide identification of peanut PIF family genes and their potential roles in early pod development. Gene 2021; 781:145539. [PMID: 33631242 DOI: 10.1016/j.gene.2021.145539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/09/2021] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
Peanut is typically a geocarpic plant. The developing gynophore ('peg') in air could not swell normally until it buries into soil, indicating light-to-dark conversion is necessary for early pod development in peanut. As the subfamily of basic helix-loop-helix (bHLH) transcription factors, phytochrome interacting factors (PIFs) are key regulators involved in light signaling pathways, and play crucial roles in plant growth and development. In the current study, a total of 14 AhPIFs were identified in cultivated peanut genome (Arachis hypogaea L., AABB), while seven AdPIFs and six AiPIFs were discovered in the two wild diploids (A. duranensis (AA), A. ipaensis (BB)) respectively. Phylogenetic analysis revealed that peanut PIFs were clustered into four distinct clades, and members within the same subgroup had conserved motifs and displayed similar exon-intron distribution patterns. Gene synteny analysis indicated most of the PIFs exhibit one-to-one homology relationship between AA and BB subgenome in A. hypogaea, as well as among the three peanut species. Gene duplication detection showed that segmental duplication and purifying selection contributed to the expansion and evolution of peanut PIF gene family. Transcript profiles combined with subcellular localization analysis suggested AhPIF3A4 and AhPIF3B4 may possibly be involved in regulation of peanut early pod development. This study could further facilitate functional characterization of PIFs in peanut and other legumes.
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Affiliation(s)
- Xin Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Yue Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Dongxin Huai
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Yuning Chen
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Yifei Jiang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Yingbin Ding
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Yanping Kang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Zhihui Wang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Liying Yan
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Huifang Jiang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Yong Lei
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China
| | - Boshou Liao
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China.
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Biswal DP, Panigrahi KCS. Light- and hormone-mediated development in non-flowering plants: An overview. PLANTA 2020; 253:1. [PMID: 33245411 DOI: 10.1007/s00425-020-03501-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
Light, hormones and their interaction regulate different aspects of development in non-flowering plants. They might have played a role in the evolution of different plant groups by conferring specific adaptive evolutionary changes. Plants are sessile organisms. Unlike animals, they lack the opportunity to abandon their habitat in unfavorable conditions. They respond to different environmental cues and adapt accordingly to control their growth and developmental pattern. While phytohormones are known to be internal regulators of plant development, light is a major environmental signal that shapes plant processes. It is plausible that light-hormone crosstalk might have played an important role in plant evolution. But how the crosstalk between light and phytohormone signaling pathways might have shaped the plant evolution is unclear. One of the possible reasons is that flowering plants have been studied extensively in context of plant development, which cannot serve the purpose of evolutionary comparisons. In order to elucidate the role of light, hormone and their crosstalk in the evolutionary adaptation in plant kingdom, one needs to understand various light- and hormone-mediated processes in diverse non-flowering plants. This review is an attempt to outline major light- and phytohormone-mediated responses in non-flowering plant groups such as algae, bryophytes, pteridophytes and gymnosperms.
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Affiliation(s)
- Durga Prasad Biswal
- School of Biological Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha, India
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai, 400094, India
| | - Kishore Chandra Sekhar Panigrahi
- School of Biological Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha, India.
- Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai, 400094, India.
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Bawa G, Feng L, Chen G, Chen H, Hu Y, Pu T, Cheng Y, Shi J, Xiao T, Zhou W, Yong T, Sun X, Yang F, Yang W, Wang X. Gibberellins and auxin regulate soybean hypocotyl elongation under low light and high-temperature interaction. PHYSIOLOGIA PLANTARUM 2020; 170:345-356. [PMID: 32588443 DOI: 10.1111/ppl.13158] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/18/2020] [Accepted: 06/23/2020] [Indexed: 05/25/2023]
Abstract
Soybean is an important oilseed crop grown globally. However, two examples of environmental stresses that drastically regulate soybean growth are low light and high-temperature. Emerging evidence suggests a possible interconnection between these two environmental stimuli. Low light and high-temperature as individual factors have been reported to regulate plant hypocotyl elongation. However, their interactive signal effect on soybean growth and development remains largely unclear. Here, we report that gibberellins (GAs) and auxin are required for soybean hypocotyl elongation under low light and high-temperature interaction. Our analysis indicated that low light and high-temperature interaction enhanced the regulation of soybean hypocotyl elongation and that the endogenous GA3 , GA7 , indole-3-acetic acid (IAA), and indole-3-pyruvate (IPA) contents significantly increased. Again, analysis of the effect of exogenous phytohormones and biosynthesis inhibitors treatments showed that exogenous GA, IAA, and paclobutrazol (PAC), 2, 3, 5,-triiodobenzoic acid (TIBA) treatments significantly regulated soybean seedlings growth under low light and high-temperature interaction. Further qRT-PCR analysis showed that the expression level of GA biosynthesis pathway genes (GmGA3ox1, GmGA3ox2 and GmGA3) and auxin biosynthesis pathway genes (GmYUCCA3, GmYUCCA5 and GmYUCCA7) significantly increased under (i) low light and high-temperature interaction and (ii) exogenous GA and IAA treatments. Altogether, these observations support the hypothesis that gibberellins and auxin regulate soybean hypocotyl elongation under low light and high-temperature stress interaction.
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Affiliation(s)
- George Bawa
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Lingyang Feng
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guopeng Chen
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hong Chen
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yun Hu
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Tian Pu
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yajiao Cheng
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jianyi Shi
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Te Xiao
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wenguan Zhou
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Taiwen Yong
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xin Sun
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Feng Yang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wenyu Yang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaochun Wang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu, 611130, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
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Sineshchekov V, Koppel L, Riemann M, Nick P. Phytochrome A and its Functional Manifestations in Etiolated and Far-red Light-grown Seedlings of the Wild-type Rice and its Hebiba and Cpm2 Mutants Deficient in the Defense-related Phytohormone Jasmonic Acid. Photochem Photobiol 2020; 97:335-342. [PMID: 33090519 DOI: 10.1111/php.13340] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/30/2020] [Indexed: 02/04/2023]
Abstract
Interaction between phytochromes and hormones is becoming one of the major issues in plant photophysiology. In this work, effects of defense-related jasmonic acid (JA) on phytochrome A (phyA) were investigated by fluorescence spectroscopy making use of two JA biosynthesis mutants of rice: cpm2 with the inactivated gene allene oxide cyclase and hebiba with additional genes deleted. Constant far-red light (FRc) mediated by phyA reduced its content in the wild type (WT) and mutants, and brought about domination of its light-stable pool (phyA″) in WT and light-labile pool (phyA') in the mutants. Pulsed FRp was much less effective. This FR effect classifies as primarily HIR with a low fluence threshold; it comprises inhibition of phyA biosynthesis, stimulation of phyA″→phyA' transformation and phyA' destruction. In the mutants, phyA suppresses [Pchlide] under FRp (VLFR) and stimulates it under FRc (HIR); these effects are lacking in WT. Similarly, phyA suppresses roots'growth under FRp in the mutants but not in WT. These JA mutant features suggest that JA reduces the phyA functional activity primarily in its phyA″ form mediating HIR. This modulating JA action on phyA functions under FR limiting their extreme manifestations may have contributed to the evolutionary advances of the land plants.
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Affiliation(s)
- Vitaly Sineshchekov
- Biology Department of the M. V. Lomonosov, Moscow State University, Moscow, 119899, Russia
| | - Larissa Koppel
- Biology Department of the M. V. Lomonosov, Moscow State University, Moscow, 119899, Russia
| | - Michael Riemann
- Botanical Institute 1, University of Karlsruhe, Karlsruhe, 76131, Germany
| | - Peter Nick
- Botanical Institute 1, University of Karlsruhe, Karlsruhe, 76131, Germany
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Zou Y, Li R, Baldwin IT. ZEITLUPE is required for shade avoidance in the wild tobacco Nicotiana attenuata. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:1341-1351. [PMID: 31628717 DOI: 10.1111/jipb.12880] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 10/18/2019] [Indexed: 05/20/2023]
Abstract
Being shaded is a common environmental stress for plants, especially for densely planted crops. Shade decreases red: far-red (R:FR) ratios that inactivate phytochrome B (PHYB) and subsequently release p̱hytochrome i̱nteraction f̱actors (PIFs). Shaded plants display elongated hypocotyls, internodes, and petioles, hyponastic leaves, early flowering and are inhibited in branching: traits collectively called the shade avoidance syndrome (SAS). ZEITLUPE (ZTL) is a circadian clock component and blue light photoreceptor, which is also involved in floral rhythms and plant defense in Nicotiana attenuata. ztl mutants are hypersensitive to red light and ZTL physically interacts with PHYB, suggesting the involvement of ZTL in R:FR light signaling. Here, we show that N. attenuata ZTL-silenced plants display a phenotype opposite to that of the SAS under normal light. After simulated shade, the normally induced transcript levels of the SAS marker gene, ATHB2 are attenuated in ZTL-silenced plants. The auxin signaling pathway, known to be involved in SAS, was also significantly attenuated. Furthermore, NaZTL directly interacts with NaPHYBs, and regulates the transcript levels of PHYBs, PIF3a, PIF7 and PIF8 under shade. Our results suggest that ZTL may regulate PHYB- and the auxin-mediated signaling pathway, which functions in the SAS of N. attenuata.
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Affiliation(s)
- Yong Zou
- Department of Molecular Ecology, Max-Planck-Institute for Chemical Ecology, Jena, 07745, Germany
| | - Ran Li
- Department of Molecular Ecology, Max-Planck-Institute for Chemical Ecology, Jena, 07745, Germany
- Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ian T Baldwin
- Department of Molecular Ecology, Max-Planck-Institute for Chemical Ecology, Jena, 07745, Germany
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Xian J, Wang Y, Niu K, Ma H, Ma X. Transcriptional regulation and expression network responding to cadmium stress in a Cd-tolerant perennial grass Poa Pratensis. CHEMOSPHERE 2020; 250:126158. [PMID: 32092564 DOI: 10.1016/j.chemosphere.2020.126158] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/07/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
Kentucky bluegrass has good capability to absorb and accumulate cadmium (Cd) through developed root system, thus having potential phytoremediation function in Cd contaminated soils. Understanding the molecular mechanisms of Cd tolerance and accumulation in this species will be crucial to generating novel Cd-tolerance cultivars through genetic improvement, while it has not well documented yet. In the present study, comparative transcriptome analysis was performed for the seedlings of high Cd-tolerant genotype (M) and low Cd-tolerant genotype (R) under Cd stress. A total of 7022 up-regulated and 1033 down-regulated transcripts were identified in M genotype, whereas, only 850 up-regulated and 846 down-regulated transcripts were detected in R. Further transcriptional regulation analysis in M genotype showed that Dof, MADS25, BBR-BPC, B3, bZIP23 and MYB30 might be the hub transcription factors in response to Cd stress due to the orchestrated multiple functional genes associated with carbohydrate, lipid and secondary metabolism, as well as signal transduction. Differential expressed genes involved in auxin, ethylene, brassinosteroid and ABA signalling formed signal transduction cascades, which interacted with hub transcription factors, thereby finally orchestrated the expression of multiple genes associated with cell wall and membrane stability, cell elongation and Cd tolerance, including IAAs, ARFs, SnRK2, PP2C, PIFs, BES1/BZR1, CCR, CAD, FATB, fabF and HACD. Additionally, post-transcriptional modification of CIPKs, MAPKs, WAXs, UBCs, and E3 ubiquitin ligases were identified and also involved in plant signalling pathways and abiotic resistance. The study could contribute to our understanding the transcriptional regulation and complex internal network associated with Cd tolerance in Kentucky bluegrass.
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Affiliation(s)
- Jingping Xian
- College of Pratacultural Science, Gansu Agricultural University, Key Laboratory of Grassland Ecosystem, Ministry of Education, Pratacultural Engineering Laboratory of Gansu Province, Sino-U.S. Center for Grazingland Ecosystem Sustainability, Lanzhou, Gansu, 730070, China; School of Science and Technology, Xinxiang University, Xinxiang, Henan, 453000, China
| | - Yong Wang
- College of Pratacultural Science, Gansu Agricultural University, Key Laboratory of Grassland Ecosystem, Ministry of Education, Pratacultural Engineering Laboratory of Gansu Province, Sino-U.S. Center for Grazingland Ecosystem Sustainability, Lanzhou, Gansu, 730070, China
| | - Kuiju Niu
- College of Pratacultural Science, Gansu Agricultural University, Key Laboratory of Grassland Ecosystem, Ministry of Education, Pratacultural Engineering Laboratory of Gansu Province, Sino-U.S. Center for Grazingland Ecosystem Sustainability, Lanzhou, Gansu, 730070, China
| | - Huiling Ma
- College of Pratacultural Science, Gansu Agricultural University, Key Laboratory of Grassland Ecosystem, Ministry of Education, Pratacultural Engineering Laboratory of Gansu Province, Sino-U.S. Center for Grazingland Ecosystem Sustainability, Lanzhou, Gansu, 730070, China.
| | - Xiang Ma
- Academy of Animal Sciences and Veterinary, Qinghai University, Xining, 810016, PR China; Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Qinghai Academy of Animal Science and Veterinary Medicine, Xining, 810016, China
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Li S, Zheng T, Zhuo X, Li Z, Li L, Li P, Qiu L, Pan H, Wang J, Cheng T, Zhang Q. Transcriptome profiles reveal that gibberellin-related genes regulate weeping traits in crape myrtle. HORTICULTURE RESEARCH 2020; 7:54. [PMID: 32257240 PMCID: PMC7109059 DOI: 10.1038/s41438-020-0279-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 05/18/2023]
Abstract
Plant architecture includes vital traits that influence and benefit crops, and economically important trees. Different plant architectures provide natural beauty. Weeping ornamental plants are aesthetically appealing to people. The regulatory mechanism controlling the weeping trait is poorly understood in crape myrtle. To investigate the weeping trait mechanism, transcriptional profiling of different organs in weeping and upright crape myrtle was performed based on phenotype. Phenotypic and histological analyses demonstrated that endodermal cells were absent, and that new shoot phenotypes could be rescued by the GA3 treatment of weeping plants. The transcriptional analysis and coexpression network analysis (WGCNA) of differentially expressed genes indicated that GA synthesis and signal transduction pathways play a role in weeping traits. When the expression level of a negative element of GA signaling, LfiGRAS1, was reduced by virus-induced gene silencing (VIGS), new branches grew in infected plants in a negatively geotropic manner. An integrated analysis implied that GA had a strong influence on weeping crape myrtle by interacting with other factors. This study helps to elucidate the mechanism governing the weeping trait and can improve the efficiency of breeding in Lagerstroemia.
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Affiliation(s)
- Suzhen Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Tangchun Zheng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Xiaokang Zhuo
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Zhuojiao Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Lulu Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Ping Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Like Qiu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Huitang Pan
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Jia Wang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Tangren Cheng
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
| | - Qixiang Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083 China
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Engineering Research Center of Landscape Environment of the Ministry of Education, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing, 100083 China
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38
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Wei H, Kong D, Yang J, Wang H. Light Regulation of Stomatal Development and Patterning: Shifting the Paradigm from Arabidopsis to Grasses. PLANT COMMUNICATIONS 2020; 1:100030. [PMID: 33367232 PMCID: PMC7747992 DOI: 10.1016/j.xplc.2020.100030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/30/2019] [Accepted: 02/06/2020] [Indexed: 05/22/2023]
Abstract
The stomatal pores of plant leaves control gas exchange with the environment. Stomatal development is prevised regulated by both internal genetic programs and environmental cues. Among various environmental factors, light regulation of stomata formation has been extensively studied in Arabidopsis. In this review, we summarize recent advances in the genetic control of stomata development and its regulation by light. We also present a comparative analysis of the conserved and diverged stomatal regulatory networks between Arabidopsis and cereal grasses. Lastly, we provide our perspectives on manipulation of the stomata density on plant leaves for the purpose of breeding crops that are better adapted to the adverse environment and high-density planting conditions.
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Affiliation(s)
- Hongbin Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Dexin Kong
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Juan Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Haiyang Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- Corresponding author
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IPyA glucosylation mediates light and temperature signaling to regulate auxin-dependent hypocotyl elongation in Arabidopsis. Proc Natl Acad Sci U S A 2020; 117:6910-6917. [PMID: 32152121 DOI: 10.1073/pnas.2000172117] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Auxin is a class of plant hormone that plays a crucial role in the life cycle of plants, particularly in the growth response of plants to ever-changing environments. Since the auxin responses are concentration-dependent and higher auxin concentrations might often be inhibitory, the optimal endogenous auxin level must be closely controlled. However, the underlying mechanism governing auxin homeostasis remains largely unknown. In this study, a UDP-glycosyltransferase (UGT76F1) was identified from Arabidopsis thaliana, which participates in the regulation of auxin homeostasis by glucosylation of indole-3-pyruvic acid (IPyA), a major precursor of the auxin indole-3-acetic acid (IAA) biosynthesis, in the formation of IPyA glucose conjugates (IPyA-Glc). In addition, UGT76F1 was found to mediate hypocotyl growth by modulating active auxin levels in a light- and temperature-dependent manner. Moreover, the transcription of UGT76F1 was demonstrated to be directly and negatively regulated by PIF4, which is a key integrator of both light and temperature signaling pathways. This study sheds a light on the trade-off between IAA biosynthesis and IPyA-Glc formation in controlling auxin levels and reveals a regulatory mechanism for plant growth adaptation to environmental changes through glucosylation of IPyA.
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40
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Wang X, Gao X, Liu Y, Fan S, Ma Q. Progress of Research on the Regulatory Pathway of the Plant Shade-Avoidance Syndrome. FRONTIERS IN PLANT SCIENCE 2020; 11:439. [PMID: 32351535 PMCID: PMC7174782 DOI: 10.3389/fpls.2020.00439] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 03/25/2020] [Indexed: 05/03/2023]
Abstract
When subject to vegetational shading, shade-avoiding plants detect neighbors by perceiving reduced light quantity and altered light quality. The former includes decreases in the ratio of red to far-red wavelengths (low R:FR) and low blue light ratio (LBL) predominantly detected by phytochromes and cryptochromes, respectively. By integrating multiple signals, plants generate a suite of responses, such as elongation of a variety of organs, accelerated flowering, and reduced branching, which are collectively termed the shade-avoidance syndrome (SAS). To trigger the SAS, interactions between photoreceptors and phytochrome-interacting factors are the general switch for activation of downstream signaling pathways. A number of transcription factor families and phytohormones, especially auxin, gibberellins, ethylene, and brassinosteroids, are involved in the SAS processes. In this review, shade signals, the major photoreceptors involved, and the phenotypic characteristics of the shade-intolerant plant Arabidopsis thaliana are described in detail. In addition, integration of the signaling mechanisms that link photoreceptors with multiple hormone signaling pathways is presented and future research directions are discussed.
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Affiliation(s)
- Xiaoyan Wang
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Xinqiang Gao
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Yuling Liu
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Shuli Fan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
- Research Base, Anyang Institute of Technology, State Key Laboratory of Cotton Biology, Anyang, China
- *Correspondence: Shuli Fan, ; Qifeng Ma,
| | - Qifeng Ma
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
- Research Base, Anyang Institute of Technology, State Key Laboratory of Cotton Biology, Anyang, China
- *Correspondence: Shuli Fan, ; Qifeng Ma,
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41
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Terry MI, Pérez-Sanz F, Navarro PJ, Weiss J, Egea-Cortines M. The Snapdragon LATE ELONGATED HYPOCOTYL Plays A Dual Role in Activating Floral Growth and Scent Emission. Cells 2019; 8:cells8080920. [PMID: 31426490 PMCID: PMC6721690 DOI: 10.3390/cells8080920] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/09/2019] [Accepted: 08/16/2019] [Indexed: 11/16/2022] Open
Abstract
The plant circadian clock controls a large number of internal processes, including growth and metabolism. Scent emission displays a circadian pattern in many species such as the snapdragon. Here we show that knocking down LATE ELONGATED HYPOCOTYL in Antirrhinum majus affects growth and scent emission. In order to gain an understanding of the growth kinetics, we took a phenomic approach using in-house artificial vision systems, obtaining time-lapse videos. Wild type flowers showed a higher growth speed than knockdown plants. The maximal growth rate was decreased by 22% in plants with lower LHY expression. Floral volatiles were differentially affected as RNAi plants showed advanced emission of compounds synthesized from cinnamic acid and delayed emission of metabolites of benzoic acid. The monoterpenes myrcene and ocimene were delayed, whereas the sesquiterpene farnesene was advanced. Overall, transgenic lines showed an altered volatile emission pattern and displayed a modified scent profile. Our results show that AmLHY plays an important role in the quantitative and qualitative control of floral growth and scent emission.
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Affiliation(s)
- Marta I Terry
- Genética Molecular, Instituto de Biotecnología Vegetal, Edificio I+D+I, Plaza del Hospital s/n, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
| | - Fernando Pérez-Sanz
- Biomedical Informatic and Bioinformatic Platform, Biomedical Research Institute of Murcia, University Clinical Hospital 'Virgen de la Arrixaca', University of Murcia, 30120 Murcia, Spain
| | - Pedro J Navarro
- Escuela Técnica Superior de Ingeniería de Telecomunicación (DSIE), Campus Muralla del Mar, s/n, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
| | - Julia Weiss
- Genética Molecular, Instituto de Biotecnología Vegetal, Edificio I+D+I, Plaza del Hospital s/n, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
| | - Marcos Egea-Cortines
- Genética Molecular, Instituto de Biotecnología Vegetal, Edificio I+D+I, Plaza del Hospital s/n, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain.
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Klem K, Gargallo-Garriga A, Rattanapichai W, Oravec M, Holub P, Veselá B, Sardans J, Peñuelas J, Urban O. Distinct Morphological, Physiological, and Biochemical Responses to Light Quality in Barley Leaves and Roots. FRONTIERS IN PLANT SCIENCE 2019; 10:1026. [PMID: 31475023 PMCID: PMC6703096 DOI: 10.3389/fpls.2019.01026] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/23/2019] [Indexed: 05/04/2023]
Abstract
Light quality modulates plant growth, development, physiology, and metabolism through a series of photoreceptors perceiving light signal and related signaling pathways. Although the partial mechanisms of the responses to light quality are well understood, how plants orchestrate these impacts on the levels of above- and below-ground tissues and molecular, physiological, and morphological processes remains unclear. However, the re-allocation of plant resources can substantially adjust plant tolerance to stress conditions such as reduced water availability. In this study, we investigated in two spring barley genotypes the effect of ultraviolet-A (UV-A), blue, red, and far-red light on morphological, physiological, and metabolic responses in leaves and roots. The plants were grown in growth units where the root system develops on black filter paper, placed in growth chambers. While the growth of above-ground biomass and photosynthetic performance were enhanced mainly by the combined action of red, blue, far-red, and UV-A light, the root growth was stimulated particularly by supplementary far-red light to red light. Exposure of plants to the full light spectrum also stimulates the accumulation of numerous compounds related to stress tolerance such as proline, secondary metabolites with antioxidative functions or jasmonic acid. On the other hand, full light spectrum reduces the accumulation of abscisic acid, which is closely associated with stress responses. Addition of blue light induced accumulation of γ-aminobutyric acid (GABA), sorgolactone, or several secondary metabolites. Because these compounds play important roles as osmolytes, antioxidants, UV screening compounds, or growth regulators, the importance of light quality in stress tolerance is unequivocal.
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Affiliation(s)
- Karel Klem
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
| | - Albert Gargallo-Garriga
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
- Centro de Investigación Ecológica y Aplicaciones Forestales (CREAF), Barcelona, Spain
| | | | - Michal Oravec
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
| | - Petr Holub
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
| | - Barbora Veselá
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
| | - Jordi Sardans
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
- Centro de Investigación Ecológica y Aplicaciones Forestales (CREAF), Barcelona, Spain
- Global Ecology Unit CREAF-CSIC-UAB, Barcelona, Spain
| | - Josep Peñuelas
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
- Centro de Investigación Ecológica y Aplicaciones Forestales (CREAF), Barcelona, Spain
- Global Ecology Unit CREAF-CSIC-UAB, Barcelona, Spain
| | - Otmar Urban
- Global Change Research Institute, Czech Academy of Sciences, Brno, Czechia
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43
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Donato M, Geisler M. HSP
90 and co‐chaperones: a multitaskers’ view on plant hormone biology. FEBS Lett 2019; 593:1415-1430. [DOI: 10.1002/1873-3468.13499] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/12/2019] [Accepted: 06/12/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Martin Donato
- Department of Biology University of Fribourg Switzerland
| | - Markus Geisler
- Department of Biology University of Fribourg Switzerland
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44
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Sineshchekov VA, Belyaeva OB. Regulation of Chlorophyll Biogenesis by Phytochrome A. BIOCHEMISTRY (MOSCOW) 2019; 84:491-508. [DOI: 10.1134/s0006297919050043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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45
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Sineshchekov VA, Belyaeva OB. Regulation of Chlorophyll Biogenesis by Phytochrome A. BIOCHEMISTRY (MOSCOW) 2019; 84:491-508. [DOI: https:/doi.org/10.1134/s0006297919050043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/29/2019] [Accepted: 01/29/2019] [Indexed: 12/18/2023]
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46
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Völz R, Kim SK, Mi J, Rawat AA, Veluchamy A, Mariappan KG, Rayapuram N, Daviere JM, Achard P, Blilou I, Al-Babili S, Benhamed M, Hirt H. INDETERMINATE-DOMAIN 4 (IDD4) coordinates immune responses with plant-growth in Arabidopsis thaliana. PLoS Pathog 2019; 15:e1007499. [PMID: 30677094 PMCID: PMC6345439 DOI: 10.1371/journal.ppat.1007499] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 12/03/2018] [Indexed: 11/18/2022] Open
Abstract
INDETERMINATE DOMAIN (IDD)/ BIRD proteins are a highly conserved plant-specific family of transcription factors which play multiple roles in plant development and physiology. Here, we show that mutation in IDD4/IMPERIAL EAGLE increases resistance to the hemi-biotrophic pathogen Pseudomonas syringae, indicating that IDD4 may act as a repressor of basal immune response and PAMP-triggered immunity. Furthermore, the idd4 mutant exhibits enhanced plant-growth indicating IDD4 as suppressor of growth and development. Transcriptome comparison of idd4 mutants and IDD4ox lines aligned to genome-wide IDD4 DNA-binding studies revealed major target genes related to defense and developmental-biological processes. IDD4 is a phospho-protein that interacts and becomes phosphorylated on two conserved sites by the MAP kinase MPK6. DNA-binding studies of IDD4 after flg22 treatment and with IDD4 phosphosite mutants show enhanced binding affinity to ID1 motif-containing promoters and its function as a transcriptional regulator. In contrast to the IDD4-phospho-dead mutant, the IDD4 phospho-mimicking mutant shows altered susceptibility to PstDC3000, salicylic acid levels and transcriptome reprogramming. In summary, we found that IDD4 regulates various hormonal pathways thereby coordinating growth and development with basal immunity.
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Affiliation(s)
- Ronny Völz
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Soon-Kap Kim
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Jianing Mi
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Anamika A Rawat
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Alaguraj Veluchamy
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Kiruthiga G Mariappan
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Naganand Rayapuram
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Jean-Michel Daviere
- Institut de biologie moléculaire des plantes, CNRS-Université de Strasbourg 12 Rue Général Zimmer, Strasbourg cedex, France
| | - Patrick Achard
- Institut de biologie moléculaire des plantes, CNRS-Université de Strasbourg 12 Rue Général Zimmer, Strasbourg cedex, France
| | - Ikram Blilou
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Salim Al-Babili
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Moussa Benhamed
- Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, University Paris-Sud, University of Évry Val d'Essonne, University Paris Diderot, Sorbonne Paris-Cite, University of Paris-Saclay, UMR9213 Institut des Sciences des Plantes de Paris Saclay, Essonne, France
| | - Heribert Hirt
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.,Institute of Plant Sciences Paris-Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Orsay, France.,Max Perutz Laboratories, University of Vienna, Vienna, Austria
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Druege U, Franken P. Petunia as model for elucidating adventitious root formation and mycorrhizal symbiosis: at the nexus of physiology, genetics, microbiology and horticulture. PHYSIOLOGIA PLANTARUM 2019; 165:58-72. [PMID: 29774547 PMCID: PMC7380035 DOI: 10.1111/ppl.12762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/03/2018] [Accepted: 05/14/2018] [Indexed: 05/23/2023]
Abstract
Adventitious root formation in cuttings and establishment of arbuscular mycorrhizal symbiosis reflect the enormous plasticity of plants and are key factors in the efficient and sustainable clonal propagation and production of ornamental crops. Based on the high importance of Petunia hybrida for the European and US annual bedding plant markets and its suitability as a model for basic plant sciences, petunia has been established as an experimental system for elucidating the molecular and physiological processes underlying adventitious root formation and mycorrhizal symbiosis. In the present review, we introduce the tools of the Petunia model system. Then, we discuss findings regarding the hormonal and metabolic control of adventitious rooting in the context of diverse environmental factors as well as findings on the function of arbuscular mycorrhiza related to nutrient uptake and resistance to root pathogens. Considering the recent publication of the genomes of the parental species of P. hybrida and other tools available in the petunia scientific community, we will outline the quality of petunia as a model for future system-oriented analysis of root development and function in the context of environmental and genetic control, which are at the heart of modern horticulture.
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Affiliation(s)
- Uwe Druege
- Leibniz Institute of Vegetable and Ornamental CropsErfurt99090Germany
| | - Philipp Franken
- Leibniz Institute of Vegetable and Ornamental CropsErfurt99090Germany
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Lee I, Choi S, Lee S, Soh MS. KAI2-KL signaling intersects with light-signaling for photomorphogenesis. PLANT SIGNALING & BEHAVIOR 2019; 14:e1588660. [PMID: 30829108 PMCID: PMC6512941 DOI: 10.1080/15592324.2019.1588660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Light is an important environmental cue, causing a high degree of developmental plasticity in higher plants. The outcome of light-regulated developmental response is determined by not only photo-sensory systems but also endogenous physiological contexts in plants. KARRIKIN-INSENSITIVE2 (KAI2) functions as a receptor of karrikin and endogenous, as yet to be identified, KAI2 ligand (KL). The loss-of-function of KAI2 caused light-hyposensitive photomorphogenesis, affecting the expression light-responsive genes under the light conditions. However, it remains still unclear how KAI2-KL signaling interacts with light-signaling. Here, we show that the ply2 mutation, a severe loss-of-function allele of KAI2 affected the expression of a subset of light-responsive genes, irrespectively of light condition. The results implied that the overlapping set of light- and KAI2-responsive genes may serve as an integrating node between light- and KAI2-KL signaling. Further, the results of double mutant analyses between the ply2 mutant and mutants of CONSTITUTIVELY PHOTOMORPHOGENIC1 (COP1) or LONG HYPOCOTYL IN FAR-RED (HFR1) implicated that KAI2-KL signaling acts at downstream of COP1, largely independently of HFR1. Together, these results suggest that KAI2-KL signaling intersects with a subset of the light-regulatory network, by which plants adjust their photomorphogenic development.
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Affiliation(s)
- Inhye Lee
- Division of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul, Republic of Korea
| | - Soobin Choi
- Division of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul, Republic of Korea
| | - Sumin Lee
- Division of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul, Republic of Korea
- Sumin Lee Division of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul 143-747, Republic of Korea
| | - Moon-Soo Soh
- Division of Integrative Bioscience and Biotechnology, College of Life Science, Sejong University, Seoul, Republic of Korea
- CONTACT Moon-Soo Soh
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Sayas E, Pérez-Benavente B, Manzano C, Farràs R, Alejandro S, Del Pozo JC, Ferrando A, Serrano R. Polyamines interfere with protein ubiquitylation and cause depletion of intracellular amino acids: a possible mechanism for cell growth inhibition. FEBS Lett 2018; 593:209-218. [PMID: 30447065 DOI: 10.1002/1873-3468.13299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/25/2018] [Accepted: 11/13/2018] [Indexed: 11/06/2022]
Abstract
Spermidine is a polyamine present in eukaryotes with essential functions in protein synthesis. At high concentrations spermidine and norspermidine inhibit growth by unknown mechanisms. Transcriptomic analysis of the effect of norspermidine on the plant Arabidopsis thaliana indicates upregulation of the response to heat stress and denatured proteins. Accordingly, these polyamines inhibit protein ubiquitylation, both in vivo (in yeast, Arabidopsis, and human Hela cells) and in vitro (with recombinant ubiquitin ligase). This interferes with protein degradation by the proteasome, a situation known to deplete cells of amino acids. Norspermidine treatment of yeast cells induces amino acid depletion, and supplementation of media with amino acids counteracts growth inhibition and cellular amino acid depletion but not inhibition of protein polyubiquitylation.
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Affiliation(s)
- Enric Sayas
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-C.S.I.C., Spain
| | | | - Concepción Manzano
- Centro de Biotecnología y Genómica de Plantas, U.P.M.-I.N.I.A., Madrid, Spain
| | - Rosa Farràs
- Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Santiago Alejandro
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-C.S.I.C., Spain
| | | | - Alejandro Ferrando
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-C.S.I.C., Spain
| | - Ramón Serrano
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-C.S.I.C., Spain
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Wei K, Chen H. Comparative functional genomics analysis of bHLH gene family in rice, maize and wheat. BMC PLANT BIOLOGY 2018; 18:309. [PMID: 30497403 PMCID: PMC6267037 DOI: 10.1186/s12870-018-1529-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/15/2018] [Indexed: 05/22/2023]
Abstract
BACKGROUND The basic helix-loop-helix transcription factors play important roles in diverse cellular and molecular processes. Comparative functional genomics can provide powerful approaches to draw inferences about gene function and evolution among species. The comprehensive comparison of bHLH gene family in different gramineous plants has not yet been reported. RESULTS In this study, a total of 183, 231 and 571 bHLHs were identified in rice, maize and wheat genomes respectively, and 1154 bHLH genes from the three species and Arabidopsis were classified into 36 subfamilies. Of the identified genes, 110 OsbHLHs, 188 ZmbHLHs and 209 TabHLHs with relatively high mRNA abundances were detected in one or more tissues during development, and some of them exhibited tissue-specific expression such as TabHLH454-459, ZmbHLH099-101 and OsbHLH037 in root, TabHLH559-562, - 046, - 047 and ZmbHLH010, - 072, - 226 in leaf, TabHLH216-221, - 333, - 335, - 340 and OsbHLH005, - 141 in inflorescence, TabHLH081, ZmbHLH139 and OsbHLH144 in seed. Forty five, twenty nine and thirty one differentially expressed bHLHs were respectively detected in wheat, maize and rice under drought stresses using RNA-seq technology. Among them, the expressions of TabHLH046, - 047, ZmbHLH097, - 098, OsbHLH006 and - 185 were strongly induced, whereas TabHLH303, - 562, ZmbHLH155, - 154, OsbHLH152 and - 113 showed significant down-regulation. Twenty two TabHLHs were induced after stripe rust infection at 24 h and nine of them were suppressed at 72 hpi, whereas 28 and 6 TabHLHs exhibited obviously down- and up-regulation after powdery mildew attack respectively. Forty one ZmbHLHs were differentially expressed in response to F. verticillioides infection. Twenty two co-expression modules were identified by the WGCNA, some of which were associated with particular tissue types. And GO enrichment analysis for the modules showed that some TabHLHs were involved in the control of several biological processes, such as tapetal PCD, lipid metabolism, iron absorption, stress responses and signal regulation. CONCLUSION The present study identifies the bHLH family in rice, maize and wheat genomes, and detailedly discusses the evolutionary relationships, expression and function of bHLHs. This study provides some novel and detail information about bHLHs, and may facilitate understanding the molecular basis of the plant growth, development and stress physiology.
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Affiliation(s)
- Kaifa Wei
- School of Biological Sciences and Biotechnology, Minnan Normal University, 36 Xian-Qian-Zhi Street, Zhangzhou, 363000 Fujian China
| | - Huiqin Chen
- School of Life Sciences, Tsinghua University, Beijing, 100084 China
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