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Wang WN, Wei YT, Zhao ST, Yu FH, Wang JW, Gu CY, Liu XR, Sai N, Zhu JL, Wang QM, Bao QX, Mu XR, Liu YX, Loake GJ, Jiang JH, Meng LS. ABSCISIC ACID-INSENSITIVE 5-KIP-RELATED PROTEIN 1-SHOOT MERISTEMLESS modulates reproductive development of Arabidopsis. PLANT PHYSIOLOGY 2024; 195:2309-2322. [PMID: 38466216 DOI: 10.1093/plphys/kiae146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 03/12/2024]
Abstract
Soil (or plant) water deficit accelerates plant reproduction. However, the underpinning molecular mechanisms remain unknown. By modulating cell division/number, ABSCISIC ACID-INSENSITIVE 5 (ABI5), a key bZIP (basic (region) leucine zippers) transcription factor, regulates both seed development and abiotic stress responses. The KIP-RELATED PROTEIN (KRP) cyclin-dependent kinases (CDKs) play an essential role in controlling cell division, and SHOOT MERISTEMLESS (STM) plays a key role in the specification of flower meristem identity. Here, our findings show that abscisic acid (ABA) signaling and/or metabolism in adjust reproductive outputs (such as rosette leaf number and open flower number) under water-deficient conditions in Arabidopsis (Arabidopsis thaliana) plants. Reproductive outputs increased under water-sufficient conditions but decreased under water-deficient conditions in the ABA signaling/metabolism mutants abscisic acid2-1 (aba2-1), aba2-11, abscisic acid insensitive3-1 (abi3-1), abi4-1, abi5-7, and abi5-8. Further, under water-deficient conditions, ABA induced-ABI5 directly bound to the promoter of KRP1, which encodes a CDK that plays an essential role in controlling cell division, and this binding subsequently activated KRP1 expression. In turn, KRP1 physically interacted with STM, which functions in the specification of flower meristem identity, promoting STM degradation. We further demonstrate that reproductive outputs are adjusted by the ABI5-KRP1-STM molecular module under water-deficient conditions. Together, our findings reveal the molecular mechanism by which ABA signaling and/or metabolism regulate reproductive development under water-deficient conditions. These findings provide insights that may help guide crop yield improvement under water deficiency.
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Affiliation(s)
- Wan-Ni Wang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Yu-Ting Wei
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Sheng-Ting Zhao
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Fu-Huan Yu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jing-Wen Wang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Cheng-Yue Gu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xin-Ran Liu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Na Sai
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jin-Lei Zhu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Qi-Meng Wang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Qin-Xin Bao
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xin-Rong Mu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Yu-Xin Liu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Gary J Loake
- Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, Edinburgh University, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, China
- Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King's Buildings, Mayfield Road, Edinburgh EH9 3BF, UK
| | - Ji-Hong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
- Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, Edinburgh University, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, China
| | - Lai-Sheng Meng
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
- Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, Edinburgh University, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, China
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Xie Y, Yu J, Tian F, Li X, Chen X, Li Y, Wu B, Miao Y. MORF9-dependent specific plastid RNA editing inhibits root growth under sugar starvation in Arabidopsis. PLANT, CELL & ENVIRONMENT 2024; 47:1921-1940. [PMID: 38357785 DOI: 10.1111/pce.14856] [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: 08/03/2023] [Revised: 01/23/2024] [Accepted: 01/31/2024] [Indexed: 02/16/2024]
Abstract
Multiple organellar RNA editing factor (MORF) complex was shown to be highly associated with C-to-U RNA editing of vascular plant editosome. However, mechanisms by which MORF9-dependent plastid RNA editing controls plant development and responses to environmental alteration remain obscure. In this study, we found that loss of MORF9 function impaired PSII efficiency, NDH activity, and carbohydrate production, rapidly promoted nuclear gene expression including sucrose transporter and sugar/energy responsive genes, and attenuated root growth under sugar starvation conditions. Sugar repletion increased MORF9 and MORF2 expression in wild-type seedlings and reduced RNA editing of matK-706, accD-794, ndhD-383 and ndhF-290 in the morf9 mutant. RNA editing efficiency of ndhD-383 and ndhF-290 sites was diminished in the gin2/morf9 double mutants, and that of matK-706, accD-794, ndhD-383 and ndhF-290 sites were significantly diminished in the snrk1/morf9 double mutants. In contrast, overexpressing HXK1 or SnRK1 promoted RNA editing rate of matK-706, accD-794, ndhD-383 and ndhF-290 in leaves of morf9 mutants, suggesting that HXK1 partially impacts MORF9 mediated ndhD-383 and ndhF-290 editing, while SnRK1 may only affect MORF9-mediated ndhF-290 site editing. Collectively, these findings suggest that sugar and/or its intermediary metabolites impair MORF9-dependent plastid RNA editing resulting in derangements of plant root development.
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Affiliation(s)
- Yakun Xie
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jinfa Yu
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Faan Tian
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xue Li
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xinyan Chen
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanyun Li
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Binghua Wu
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ying Miao
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
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Sun X, Xu M, Luo M, Wu X, Li H, Nie J, Qi Y, Yang Z, Tian Z. Potato miR394 targets StA/N-INVE and StLCR to negatively regulate late blight resistance. PHYSIOLOGIA PLANTARUM 2024; 176:e14293. [PMID: 38641970 DOI: 10.1111/ppl.14293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/21/2024]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs in eukaryotes. Plant endogenous miRNAs play pivotal roles in regulating plant development and defense responses. MicroRNA394 (miR394) has been reported to regulate plant development, abiotic stresses and defense responses. Previous reports showed that miR394 responded to P. infestans inoculation in potato, indicating that miR394 may be involved in defense responses. In this study, we further investigated its role in potato defense against P. infestans. Stable expression of miR394 in tobacco and potato enhances the susceptibility to P. infestans, which is accompanied with the reduced accumulation of ROS and down-regulation of the PTI (pattern-triggered immunity) marker genes. Besides well-known target StLCR, miR394 also targets StA/N-INVE, which encodes a chloroplast Alkaline/Neutral Invertases (A/N-INVE). Both StLCR and StA/N-INVE positively regulate late blight resistance, while miR394 degrades them. Interestingly, StA/N-INVE is located in the chloroplast, indicating that miR394 may manipulate chloroplast immunity. Degradation of StA/N-INVE may affect the chloroplast function and hence lead to the compromised ROS (reactive oxygen species) burst and reduced retrograde signaling from the chloroplast to the nucleus and cytoplasm. In summary, this study provides new information that miR394 targets and degrades StA/N-INVE and StLCR, which are positive regulators, to enhance potato susceptibility to P. infestans.
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Affiliation(s)
- Xinyuan Sun
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Meng Xu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Ming Luo
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Xinya Wu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Hongjun Li
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Jiahui Nie
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Yetong Qi
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Zhu Yang
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
| | - Zhendong Tian
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University (HZAU), Wuhan, China
- Key Laboratory of Potato Biology and Biotechnology (HZAU), Ministry of Agriculture and Rural Affairs, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province (HZAU), Wuhan, China
- Hubei Hongshan Laboratory (HZAU), Wuhan, China
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Tang P, Shan S, Wang R, Xu W, Yan N, Niu N, Zhang G, Gao X, Min D, Song Y. Active oxygen generation induced by the glucose sensor TaHXK7-1A decreased the drought resistance of transgenic Arabidopsis and wheat (Triticum aestivum L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108410. [PMID: 38310725 DOI: 10.1016/j.plaphy.2024.108410] [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: 12/27/2023] [Revised: 01/21/2024] [Accepted: 01/29/2024] [Indexed: 02/06/2024]
Abstract
Improving wheat drought resistance is of great significance for grain production and food security. Hexokinases (HXKs) play a role in sugar signal transduction and are involved in abiotic stress responses in wheat. To clarify the relationship between HXKs and drought stress in wheat, we used the rice active oxygen induction gene OsHXK1 as a reference sequence and the homologously cloned wheat TaHXK7-1A gene. TaHXK7-1A was localized in the nucleus and cell membrane. Under drought stress, over-expression of TaHXK7-1A increased the contents of O2·- and malondialdehyde (MDA) and significantly up-regulated the respiratory burst oxidative homologue (RBOHs) genes in transgenic Arabidopsis. In addition, the over-expression of TaHXK7-1A inhibited the growth of Arabidopsis seedlings and increased ROS accumulation under 6 % exogenous glucose treatment. Gene silencing of TaHXK7-1 decreased the contents of O2·- and MDA in wheat leaves under drought stress, and the RBOHs was significantly down-regulated, which improved the drought resistance of wheat. The results of yeast one-hybrid, EMSA, and dual-luciferase assays showed that TabHLH148-5A bound to the E-box motif of the TaHXK7-1A promoter and inhibited the expression of TaHXK7-1A. In addition, yeast two-hybrid and luciferase complementation imaging assays showed that TaHXK7-1A interacted with TaGRF3-4A. These results indicate that the glucose sensor TaHXK7-1A was negatively regulated by TabHLH148-5A, interacted with TaGRF3-4A, and negatively regulated wheat drought resistance by regulating RBOHs expression and inducing ROS production, thus providing a theoretical basis for revealing the molecular mechanism of wheat drought resistance.
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Affiliation(s)
- Peng Tang
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Sicong Shan
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Rui Wang
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Wei Xu
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Nuo Yan
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Na Niu
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Gaisheng Zhang
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Xin Gao
- Crop Research Institute, Shandong Academy of Agricultural Sciences, National Engineering Research Center of Wheat and Maize, National Key Laboratory of Wheat Breeding, Ministry of Science and Technology, Key Laboratory of Wheat Biology and Genetic Improvement in North Yellow & Huai River Valley, Ministry of Agriculture, Shandong Provincial Technology Innovation Center for Wheat, Jinan, Shandong, 250100, China
| | - Donghong Min
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China.
| | - Yulong Song
- College of Agronomy, Northwest A&F University, State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, National Yangling Agricultural Biotechnology & Breeding Center, Key Laboratory of Crop Heterosis of Shaanxi Province, Yangling, 712100, Shaanxi, China.
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Mu XR, Wang YB, Bao QX, Wei YT, Zhao ST, Tao WZ, Liu YX, Wang WN, Yu FH, Tong C, Wang JW, Gu CY, Wang QM, Liu XR, Sai N, Zhu JL, Zhang J, Loake GJ, Meng LS. Glucose status within dark-grown etiolated cotyledons determines seedling de-etiolation upon light irradiation. PLANT PHYSIOLOGY 2023; 194:391-407. [PMID: 37738410 DOI: 10.1093/plphys/kiad508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/24/2023]
Abstract
Exposure of dark-grown etiolated seedlings to light triggers the transition from skotomorphogenesis/etiolation to photomorphogenesis/de-etiolation. In the life cycle of plants, de-etiolation is essential for seedling development and plant survival. The mobilization of soluble sugars (glucose [Glc], sucrose, and fructose) derived from stored carbohydrates and lipids to target organs, including cotyledons, hypocotyls, and radicles, underpins de-etiolation. Therefore, dynamic carbohydrate biochemistry is a key feature of this phase transition. However, the molecular mechanisms coordinating carbohydrate status with the cellular machinery orchestrating de-etiolation remain largely opaque. Here, we show that the Glc sensor HEXOKINASE 1 (HXK1) interacts with GROWTH REGULATOR FACTOR5 (GRF5), a transcriptional activator and key plant growth regulator, in Arabidopsis (Arabidopsis thaliana). Subsequently, GRF5 directly binds to the promoter of phytochrome A (phyA), encoding a far-red light (FR) sensor/cotyledon greening inhibitor. We demonstrate that the status of Glc within dark-grown etiolated cotyledons determines the de-etiolation of seedlings when exposed to light irradiation by the HXK1-GRF5-phyA molecular module. Thus, following seed germination, accumulating Glc within dark-grown etiolated cotyledons stimulates a HXK1-dependent increase of GRF5 and an associated decrease of phyA, triggering the perception, amplification, and relay of HXK1-dependent Glc signaling, thereby facilitating the de-etiolation of seedlings following light irradiation. Our findings, therefore, establish how cotyledon carbohydrate signaling under subterranean darkness is sensed, amplified, and relayed, determining the phase transition from skotomorphogenesis to photomorphogenesis on exposure to light irradiation.
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Affiliation(s)
- Xin-Rong Mu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
- State Key Laboratory of Pharmaceutical Biotechnology, Institute of Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yi-Bo Wang
- College of Bioengineering and Biotechnology, Tianshui Normal University, Tianshui 741600, People's Republic of China
| | - Qin-Xin Bao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Yu-Ting Wei
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Sheng-Ting Zhao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Wen-Zhe Tao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Yu-Xin Liu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Wan-Ni Wang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Fu-Huan Yu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Chen Tong
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Jing-Wen Wang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Cheng-Yue Gu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Qi-Meng Wang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Xin-Ran Liu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Na Sai
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Jin-Lei Zhu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Jian Zhang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Gary J Loake
- Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University-Edinburgh University, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
- Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, Edinburgh EH9 3JR, UK
| | - Lai-Sheng Meng
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
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Guo WJ, Pommerrenig B, Neuhaus HE, Keller I. Interaction between sugar transport and plant development. JOURNAL OF PLANT PHYSIOLOGY 2023; 288:154073. [PMID: 37603910 DOI: 10.1016/j.jplph.2023.154073] [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: 06/19/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
Endogenous programs and constant interaction with the environment regulate the development of the plant organism and its individual organs. Sugars are necessary building blocks for plant and organ growth and at the same time act as critical integrators of the metabolic state into the developmental program. There is a growing recognition that the specific type of sugar and its subcellular or tissue distribution is sensed and translated to developmental responses. Therefore, the transport of sugars across membranes is a key process in adapting plant organ properties and overall development to the nutritional state of the plant. In this review, we discuss how plants exploit various sugar transporters to signal growth responses, for example, to control the development of sink organs such as roots or fruits. We highlight which sugar transporters are involved in root and shoot growth and branching, how intracellular sugar allocation can regulate senescence, and, for example, control fruit development. We link the important transport processes to downstream signaling cascades and elucidate the factors responsible for the integration of sugar signaling and plant hormone responses.
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Affiliation(s)
- Woei-Jiun Guo
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Benjamin Pommerrenig
- Department of Plant Physiology, University of Kaiserslautern, Erwin Schrödinger Str., 67663, Kaiserslautern, Germany
| | - H Ekkehard Neuhaus
- Department of Plant Physiology, University of Kaiserslautern, Erwin Schrödinger Str., 67663, Kaiserslautern, Germany
| | - Isabel Keller
- Department of Plant Physiology, University of Kaiserslautern, Erwin Schrödinger Str., 67663, Kaiserslautern, Germany.
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Bao QX, Mu XR, Tong C, Li C, Tao WZ, Zhao ST, Liu YX, Wang WN, Wei YT, Yu FH, Wang JW, Sun ZL, Fan BL, Sun J, Wang C, Loake G, Meng LS. Sugar status in preexisting leaves determines systemic stomatal development within newly developing leaves. Proc Natl Acad Sci U S A 2023; 120:e2302854120. [PMID: 37276396 PMCID: PMC10268241 DOI: 10.1073/pnas.2302854120] [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: 02/23/2023] [Accepted: 05/11/2023] [Indexed: 06/07/2023] Open
Abstract
Stomata are pores found in the epidermis of stems or leaves that modulate both plant gas exchange and water/nutrient uptake. The development and function of plant stomata are regulated by a diverse range of environmental cues. However, how carbohydrate status in preexisting leaves might determine systemic stomatal formation within newly developing leaves has remained obscure. The glucose (Glc) sensor HEXOKINASE1 (HXK1) has been reported to decrease the stability of an ethylene/Glc signaling transcriptional regulator, EIN3 (ETHYLENE INSENSITIVE3). EIN3 in turn directly represses the expression of SUC2 (sucrose transporter 2), encoding a master transporter of sucrose (Suc). Further, KIN10, a nuclear regulator involved in energy homeostasis, has been reported to repress the transcription factor SPCH (SPEECHLESS), a master regulator of stomatal development. Here, we demonstrate that the Glc status of preexisting leaves determines systemic stomatal development within newly developing leaves by the HXK1-¦EIN3-¦SUC2 module. Further, increasing Glc levels in preexisting leaves results in a HXK1-dependent decrease of EIN3 and increase of SUC2, triggering the perception, amplification and relay of HXK1-dependent Glc signaling and thereby triggering Suc transport from mature to newly developing leaves. The HXK1-¦EIN3-¦SUC2 molecular module thereby drives systemic Suc transport from preexisting leaves to newly developing leaves. Subsequently, increasing Suc levels within newly developing leaves promotes stomatal formation through the established KIN10⟶ SPCH module. Our findings thus show how a carbohydrate signal in preexisting leaves is sensed, amplified and relayed to determine the extent of systemic stomatal development within newly developing leaves.
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Affiliation(s)
- Qin-Xin Bao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Xin-Rong Mu
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Chen Tong
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Cong Li
- Public Technical Service Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan650223, People’s Republic of China
| | - Wen-Zhe Tao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Sheng-Ting Zhao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Yu-xin Liu
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Wan-Ni Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Yu-ting Wei
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Fu-Huan Yu
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Jing-wen Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Zhi-Lan Sun
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Bing-Ling Fan
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Jia Sun
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
| | - Chen Wang
- School of Horticulture, Nanjing Agricultural University, Nanjing, Jiangsu210095, People’s Republic of China
| | - Gary J. Loake
- Jiangsu Normal University–Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
- Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, EdinburghEH9 3BF, United Kingdom
| | - Lai-Sheng Meng
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu221116, People’s Republic of China
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8
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Wawrzyńska A, Piotrowska J, Apodiakou A, Brückner F, Hoefgen R, Sirko A. The SLIM1 transcription factor affects sugar signaling during sulfur deficiency in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:7362-7379. [PMID: 36099003 PMCID: PMC9730805 DOI: 10.1093/jxb/erac371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/12/2022] [Indexed: 06/08/2023]
Abstract
The homeostasis of major macronutrient metabolism needs to be tightly regulated, especially when the availability of one or more nutrients fluctuates in the environment. Both sulfur metabolism and glucose signaling are important processes throughout plant growth and development, as well as during stress responses. Still, very little is known about how these processes affect each other, although they are positively connected. Here, we showed in Arabidopsis that the crucial transcription factor of sulfur metabolism, SLIM1, is involved in glucose signaling during shortage of sulfur. The germination rate of the slim1_KO mutant was severely affected by high glucose and osmotic stress. The expression of SLIM1-dependent genes in sulfur deficiency appeared to be additionally induced by a high concentration of either mannitol or glucose, but also by sucrose, which is not only the source of glucose but another signaling molecule. Additionally, SLIM1 affects PAP1 expression during sulfur deficiency by directly binding to its promoter. The lack of PAP1 induction in such conditions leads to much lower anthocyanin production. Taken together, our results indicate that SLIM1 is involved in the glucose response by modulating sulfur metabolism and directly controlling PAP1 expression in Arabidopsis during sulfur deficiency stress.
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Affiliation(s)
| | - Justyna Piotrowska
- Laboratory of Plant Protein Homeostasis, Institute of Biochemistry and Biophysics Polish Academy of Sciences, Warsaw, Poland
| | - Anastasia Apodiakou
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Franziska Brückner
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Agnieszka Sirko
- Laboratory of Plant Protein Homeostasis, Institute of Biochemistry and Biophysics Polish Academy of Sciences, Warsaw, Poland
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9
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Stafen CF, Kleine-Vehn J, Maraschin FDS. Signaling events for photomorphogenic root development. TRENDS IN PLANT SCIENCE 2022; 27:1266-1282. [PMID: 36057533 DOI: 10.1016/j.tplants.2022.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 07/26/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
A germinating seedling incorporates environmental signals such as light into developmental outputs. Light is not only a source of energy, but also a central coordinative signal in plants. Traditionally, most research focuses on aboveground organs' response to light; therefore, our understanding of photomorphogenesis in roots is relatively scarce. However, root development underground is highly responsive to light signals from the shoot and understanding these signaling mechanisms will give a better insight into early seedling development. Here, we review the central light signaling hubs and their role in root growth promotion of Arabidopsis thaliana seedlings.
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Affiliation(s)
- Cássia Fernanda Stafen
- PPGBM - Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil
| | - Jürgen Kleine-Vehn
- Institute of Biology II, Chair of Molecular Plant Physiology (MoPP), University of Freiburg, Freiburg, Germany; Center for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, 79104 Freiburg, Germany
| | - Felipe Dos Santos Maraschin
- PPGBM - Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil; Departamento de Botânica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brazil.
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10
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Tong C, Li C, Cao XY, Sun XD, Bao QX, Mu XR, Liu CY, Loake GJ, Chen HH, Meng LS. Long-distance transport of sucrose in source leaves promotes sink root growth by the EIN3-SUC2 module. PLoS Genet 2022; 18:e1010424. [PMID: 36129930 PMCID: PMC9529141 DOI: 10.1371/journal.pgen.1010424] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 10/03/2022] [Accepted: 09/12/2022] [Indexed: 12/02/2022] Open
Abstract
In most plants, sucrose, a major storage sugar, is transported into sink organs to support their growth. This key physiological process is dependent on the function of sucrose transporters. Sucrose export from source tissues is predominantly controlled through the activity of SUCROSE TRANSPORTER 2 (SUC2), required for the loading of sucrose into the phloem of Arabidopsis plants. However, how SUC2 activity is controlled to support root growth remains unclear. Glucose is perceived via the function of HEXOKINASE 1 (HXK1), the only known nuclear glucose sensor. HXK1 negatively regulates the stability of ETHYLENE-INSENSITIVE3 (EIN3), a key ethylene/glucose interaction component. Here we show that HXK1 functions upstream of EIN3 in the regulation of root sink growth mediated by glucose signaling. Furthermore, the transcription factor EIN3 directly inhibits SUC2 activity by binding to the SUC2 promoter, regulating glucose signaling linked to root sink growth. We demonstrate that these molecular components form a HXK1-EIN3-SUC2 module integral to the control of root sink growth. Also, we demonstrate that with increasing age, the HXK1-EIN3-SUC2 module promotes sucrose phloem loading in source tissues thereby elevating sucrose levels in sink roots. As a result, glucose signaling mediated-sink root growth is facilitated. Our findings thus establish a direct molecular link between the HXK1-EIN3-SUC2 module, the source-to sink transport of sucrose and root growth. In Arabidopsis and most crops, sucrose transporters are positioned in the vascular bundles of leaf blades where they have crucial roles in balancing source and sink activities. However, little molecular detail is currently available regarding the modulation of sucrose transporter activity. Here, we demonstrate that the transcriptional regulator, EIN3, functions downstream of HEXOKINASE 1 (HXK1), which acts upstream of SUC2 in the regulation of root sink growth mediated by glucose signaling. Further, EIN3 directly represses SUC2 function by negatively regulating SUC2 transcription. We further demonstrate that these components form the HXK1-EIN3-SUC2 module to facilitate sucrose phloem loading in source tissues thereby elevating sucrose content in sink roots.
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Affiliation(s)
- Chen Tong
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Cong Li
- Public Technical Service Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, People’s Republic of China
| | - Xiao-Ying Cao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Xu-Dong Sun
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, People’s Republic of China
| | - Qin-Xin Bao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Xin-Rong Mu
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Chang-Yue Liu
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
| | - Gary J. Loake
- Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, Xuzhou, People’s Republic of China, China
- Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King’s Buildings, Edinburgh, United Kingdom
- * E-mail: (GJL); (HHC); (LSM)
| | - Hu-hui Chen
- School of Life Science, Nanjing Agricultural University, Nanjing, Jiangsu, People’s Republic of China
- * E-mail: (GJL); (HHC); (LSM)
| | - Lai-Sheng Meng
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People’s Republic of China
- * E-mail: (GJL); (HHC); (LSM)
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11
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Dahro B, Wang Y, Khan M, Zhang Y, Fang T, Ming R, Li C, Liu JH. Two AT-Hook proteins regulate A/NINV7 expression to modulate sucrose catabolism for cold tolerance in Poncirus trifoliata. THE NEW PHYTOLOGIST 2022; 235:2331-2349. [PMID: 35695205 DOI: 10.1111/nph.18304] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Invertase (INV)-mediated sucrose (Suc) hydrolysis, leading to the irreversible production of glucose (Glc) and fructose (Frc), plays an essential role in abiotic stress tolerance of plants. However, the regulatory network associated with the Suc catabolism in response to cold environment remains largely elusive. Herein, the cold-induced alkaline/neutral INV gene PtrA/NINV7 of trifoliate orange (Poncirus trifoliata (L.) Raf.) was shown to function in cold tolerance via mediating the Suc hydrolysis. Meanwhile, a nuclear matrix-associated region containing A/T-rich sequences within its promoter was indispensable for the cold induction of PtrA/NINV7. Two AT-Hook Motif Containing Nuclear Localized (AHL) proteins, PtrAHL14 and PtrAHL17, were identified as upstream transcriptional activators of PtrA/NINV7 by interacting with the A/T-rich motifs. PtrAHL14 and PtrAHL17 function positively in the cold tolerance by modulating PtrA/NINV7-mediated Suc catabolism. Furthermore, both PtrAHL14 and PtrAHL17 could form homo- and heterodimers between each other, and interacted with two histone acetyltransferases (HATs), GCN5 and TAF1, leading to elevated histone3 acetylation level under the cold stress. Taken together, our findings unraveled a new cold-responsive signaling module (AHL14/17-HATs-A/NINV7) for orchestration of Suc catabolism and cold tolerance, which shed light on the molecular mechanisms underlying Suc catabolism catalyzed by A/NINVs under cold stress.
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Affiliation(s)
- Bachar Dahro
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria
| | - Yue Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Madiha Khan
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yang Zhang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Tian Fang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ruhong Ming
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chunlong Li
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
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12
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Mu XR, Tong C, Fang XT, Bao QX, Xue LN, Meng WY, Liu CY, Loake GJ, Cao XY, Jiang JH, Meng LS. Feedback loop promotes sucrose accumulation in cotyledons to facilitate sugar-ethylene signaling-mediated, etiolated-seedling greening. Cell Rep 2022; 38:110529. [PMID: 35294871 DOI: 10.1016/j.celrep.2022.110529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 08/01/2021] [Accepted: 02/24/2022] [Indexed: 11/19/2022] Open
Abstract
De-etiolation is indispensable for seedling survival and development. However, how sugars regulate de-etiolation and how sugars induce ethylene (ET) for seedlings to grow out of soil remain elusive. Here, we reveal how a sucrose (Suc) feedback loop promotes de-etiolation by inducing ET biosynthesis. Under darkness, Suc in germinating seeds preferentially induces 1-amino-cyclopropane-1-carboxylate synthase (ACS7; encoding a key ET biosynthesis enzyme) and associated ET biosynthesis, thereby activating ET core component ETHYLENE-INSENSITIVE3 (EIN3). Activated EIN3 directly inhibits the function of Suc transporter 2 (SUC2; a major Suc transporter) to block Suc export from cotyledons and thereby elevate Suc accumulation of cotyledons to induce ET. Under light, ET-activated EIN3 directly inhibits the function of phytochrome A (phyA; a de-etiolation inhibitor) to promote de-etiolation. We therefore propose that under darkness, the Suc feedback loop (Suc-ACS7-EIN3-|SUC2-Suc) promotes Suc accumulation in cotyledons to guarantee ET biosynthesis, facilitate de-etiolation, and enable seedlings to grow out of soil.
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Affiliation(s)
- Xin-Rong Mu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Chen Tong
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xing-Tang Fang
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Qin-Xin Bao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Li-Na Xue
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Wei-Ying Meng
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Chang-Yue Liu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Gary J Loake
- Jiangsu Normal University, Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, Jiangsu 221116, People's Republic of China; Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King's Buildings, Mayfield Road, Edinburgh EH9 3JR, UK
| | - Xiao-Ying Cao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China.
| | - Ji-Hong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China.
| | - Lai-Sheng Meng
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China.
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13
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Yang J, Chen Y, Xiao Z, Shen H, Li Y, Wang Y. Multilevel regulation of anthocyanin-promoting R2R3-MYB transcription factors in plants. FRONTIERS IN PLANT SCIENCE 2022; 13:1008829. [PMID: 36147236 PMCID: PMC9485867 DOI: 10.3389/fpls.2022.1008829] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/22/2022] [Indexed: 05/14/2023]
Abstract
Anthocyanins are common secondary metabolites in plants that confer red, blue, and purple colorations in plants and are highly desired by consumers for their visual appearance and nutritional quality. In the last two decades, the anthocyanin biosynthetic pathway and transcriptional regulation of anthocyanin biosynthetic genes (ABGs) have been well characterized in many plants. From numerous studies on model plants and horticultural crops, many signaling regulators have been found to control anthocyanin accumulation via regulation of anthocyanin-promoting R2R3-MYB transcription factors (so-called R2R3-MYB activators). The regulatory mechanism of R2R3-MYB activators is mediated by multiple environmental factors (e.g., light, temperature) and internal signals (e.g., sugar, ethylene, and JA) in complicated interactions at multiple levels. Here, we summarize the transcriptional control of R2R3-MYB activators as a result of natural variations in the promoter of their encoding genes, upstream transcription factors and epigenetics, and posttranslational modifications of R2R3-MYB that determine color variations of horticultural plants. In addition, we focus on progress in elucidating the integrated regulatory network of anthocyanin biosynthesis mediated by R2R3-MYB activators in response to multiple signals. We also highlight a few gene cascade modules involved in the regulation of anthocyanin-related R2R3-MYB to provide insights into anthocyanin production in horticultural plants.
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Affiliation(s)
- Jianfei Yang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- School of Forestry, Northeast Forestry University, Harbin, China
| | - Yunzhu Chen
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Zhihong Xiao
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Hailong Shen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- School of Forestry, Northeast Forestry University, Harbin, China
| | - Yuhua Li
- College of Life Sciences, Northeast Forestry University, Harbin, China
- Yuhua Li,
| | - Yu Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Sciences, Northeast Forestry University, Harbin, China
- *Correspondence: Yu Wang,
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14
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Dahro B, Wang Y, Alhag A, Li C, Guo D, Liu JH. Genome-wide identification and expression profiling of invertase gene family for abiotic stresses tolerance in Poncirus trifoliata. BMC PLANT BIOLOGY 2021; 21:559. [PMID: 34823468 PMCID: PMC8614057 DOI: 10.1186/s12870-021-03337-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 11/08/2021] [Indexed: 05/28/2023]
Abstract
BACKGROUND Sucrose (Suc) hydrolysis is directly associated with plants tolerance to multiple abiotic stresses. Invertase (INV) enzymes irreversibly catalyze Suc degradation to produce glucose (Glc) and fructose (Frc). However, genome-wide identification and function of individual members of the INV gene family in Poncirus trifoliata or its Citrus relatives in response to abiotic stresses are not fully understood. RESULTS In this report, fourteen non-redundant PtrINV family members were identified in P. trifoliata including seven alkaline/neutral INV genes (PtrA/NINV1-7), two vacuolar INV genes (PtrVINV1-2), and five cell wall INV isoforms (PtrCWINV1-5). A comprehensive analysis based on the biochemical characteristics, the chromosomal location, the exon-intron structures and the evolutionary relationships demonstrated the conservation and the divergence of PtrINVs. In addition, expression analysis of INV genes during several abiotic stresses in various tissues indicated the central role of A/NINV7 among INV family members in response to abiotic stresses. Furthermore, our data demonstrated that high accumulation of Suc, Glc, Frc and total sugar contents were directly correlated with the elevated activities of soluble INV enzymes in the cold-tolerant P. trifoliata, C. ichangensis and C. sinensis, demonstrating the potential role of soluble INV enzymes for the cold tolerance of Citrus. CONCLUSIONS This work offered a framework for understanding the physiological role of INV genes and laid a foundation for future functional studies of these genes in response to abiotic stresses.
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Affiliation(s)
- Bachar Dahro
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria
| | - Yue Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ahmed Alhag
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chunlong Li
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dayong Guo
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, China.
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15
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Meng LS, Bao QX, Mu XR, Tong C, Cao XY, Huang JJ, Xue LN, Liu CY, Fei Y, Loake GJ. Glucose- and sucrose-signaling modules regulate the Arabidopsis juvenile-to-adult phase transition. Cell Rep 2021; 36:109348. [PMID: 34260932 DOI: 10.1016/j.celrep.2021.109348] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/26/2021] [Accepted: 06/15/2021] [Indexed: 10/20/2022] Open
Abstract
CINV1, converting sucrose into glucose and fructose, is a key entry of carbon into cellular metabolism, and HXK1 functions as a pivotal sensor for glucose. Exogenous sugars trigger the Arabidopsis juvenile-to-adult phase transition via a miR156A/SPL module. However, the endogenous factors that regulate this process remain unclear. In this study, we show that sucrose specifically induced the PAP1 transcription factor directly and positively controls CINV1 activity. Furthermore, we identify a glucose feed-forward loop (sucrose-CINV1-glucose-HXK1-miR156-SPL9-PAP1-CINV1-glucose) that controls CINV1 activity to convert sucrose into glucose signaling to dynamically control the juvenile-to-adult phase transition. Moreover, PAP1 directly binds to the SPL9 promoter, activating SPL9 expression and triggering the sucrose-signaling-mediated juvenile-to-adult phase transition. Therefore, a glucose-signaling feed-forward loop and a sucrose-signaling pathway synergistically regulate the Arabidopsis juvenile-to-adult phase transition. Collectively, we identify a molecular link between the major photosynthate sucrose, the entry point of carbon into cellular metabolism, and the plant juvenile-to-adult phase transition.
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Affiliation(s)
- Lai-Sheng Meng
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China.
| | - Qin-Xin Bao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xin-Rong Mu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Chen Tong
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xiao-Ying Cao
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Jin-Jin Huang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Li-Na Xue
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Chang-Yue Liu
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Yue Fei
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Gary J Loake
- Jiangsu Normal University-Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, 101 Shanghai Road, Xuzhou, People's Republic of China; Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King's Buildings, Mayfield Road, Edinburgh EH9 3JR, UK.
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16
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Coluccio Leskow C, Conte M, Del Pozo T, Bermúdez L, Lira BS, Gramegna G, Baroli I, Burgos E, Zavallo D, Kamenetzky L, Asís R, Gonzalez M, Fernie AR, Rossi M, Osorio S, Carrari F. The cytosolic invertase NI6 affects vegetative growth, flowering, fruit set, and yield in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2525-2543. [PMID: 33367755 DOI: 10.1093/jxb/eraa594] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Sucrose metabolism is important for most plants, both as the main source of carbon and via signaling mechanisms that have been proposed for this molecule. A cleaving enzyme, invertase (INV) channels sucrose into sink metabolism. Although acid soluble and insoluble invertases have been largely investigated, studies on the role of neutral invertases (A/N-INV) have lagged behind. Here, we identified a tomato A/N-INV encoding gene (NI6) co-localizing with a previously reported quantitative trait locus (QTL) largely affecting primary carbon metabolism in tomato. Of the eight A/N-INV genes identified in the tomato genome, NI6 mRNA is present in all organs, but its expression was higher in sink tissues (mainly roots and fruits). A NI6-GFP fusion protein localized to the cytosol of mesophyll cells. Tomato NI6-silenced plants showed impaired growth phenotype, delayed flowering and a dramatic reduction in fruit set. Global gene expression and metabolite profile analyses of these plants revealed that NI6 is not only essential for sugar metabolism, but also plays a signaling role in stress adaptation. We also identified major hubs, whose expression patterns were greatly affected by NI6 silencing; these hubs were within the signaling cascade that coordinates carbohydrate metabolism with growth and development in tomato.
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Affiliation(s)
- Carla Coluccio Leskow
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
| | - Mariana Conte
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
| | - Talia Del Pozo
- Centro Tecnológico de Recursos Vegetales, Escuela de Agronomía, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - Luisa Bermúdez
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
- Cátedra de Genética, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Bruno Silvestre Lira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Giovanna Gramegna
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Irene Baroli
- Instituto de Biodiversidad y Biología Experimental Aplicada., IBBEA, CONICET, Buenos Aires, Argentina
| | - Estanislao Burgos
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Diego Zavallo
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (IB-INTA), and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), B1712WAA Hurlingham, Argentina
| | - Laura Kamenetzky
- Laboratorio de Genómica y Bioinformática de Patógenos. iB3 | Instituto de Biociencias, Biotecnología y Biología traslacional. Departamento de Fisiologia y Biologia Molecular y Celular Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
| | - Ramón Asís
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Mauricio Gonzalez
- Centro Tecnológico de Recursos Vegetales, Escuela de Agronomía, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - Alisdair Robert Fernie
- Max Planck Institute for Molecular Plant Physiology, Wissenschafts Park Golm, Am Mühlenberg 1, Potsdam-Golm, D-14 476, Germany
| | - Magdalena Rossi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Sonia Osorio
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," University of Malaga-Consejo Superior de Investigaciones Científicas, Department of Molecular Biology and Biochemistry, Campus de Teatinos, 29071 Malaga, Spain
| | - Fernando Carrari
- Cátedra de Genética, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
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Opitz MW, Daneshkhah R, Lorenz C, Ludwig R, Steinkellner S, Wieczorek K. Serendipita indica changes host sugar and defense status in Arabidopsis thaliana: cooperation or exploitation? PLANTA 2021; 253:74. [PMID: 33620564 PMCID: PMC7902589 DOI: 10.1007/s00425-021-03587-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/04/2021] [Indexed: 05/10/2023]
Abstract
Manipulation of sugar metabolism upon S. indica root colonization triggers changes in sugar pools and defense responses in A. thaliana. Serendipita indica is an endophytic fungus that establishes mutualistic relationships with many different plants including important crops as well as the model plant A. thaliana. Successful root colonization typically results in growth promotion and enhanced tolerance against various biotic and abiotic stresses. The fungus delivers phosphorus to the host and receives in exchange carbohydrates. There are hints that S. indica prefers hexoses, glucose, and fructose, products of saccharose cleavage driven by invertases (INVs) and sucrose synthases (SUSs). Carbohydrate metabolism in this interaction, however, remains still widely unexplored. Therefore, in this work, the sugar pools as well as the expression of SUSs and cytosolic INVs in plants colonized by S. indica were analyzed. Using sus1/2/3/4 and cinv1/2 mutants the importance of these genes for the induction of growth promotion and proper root colonization was demonstrated. Furthermore, the expression of several defense-related marker genes in both multiple mutants in comparison to the wild-type plants was determined. Our results show that in colonized A. thaliana plants S. indica manipulates the sugar metabolism by altering the expression of host's INV and SUS and modulates both the sugar pools and plant defense in its favor. We conclude that the interaction A. thaliana-S. indica is a balancing act between cooperation and exploitation, in which sugar metabolism plays a crucial role. Small changes in this mechanism can lead to severe disruption resulting in the lack of growth promotion or altered colonization rate.
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Affiliation(s)
- Michael W Opitz
- Department of Crop Sciences, Institute of Plant Protection, University of Natural Resources and Life Sciences, Tulln an der Donau, Austria
| | - Roshanak Daneshkhah
- Department of Crop Sciences, Institute of Plant Protection, University of Natural Resources and Life Sciences, Tulln an der Donau, Austria
| | - Cindy Lorenz
- Department of Food Sciences and Technology, Institute of Food Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Roland Ludwig
- Department of Food Sciences and Technology, Institute of Food Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Siegrid Steinkellner
- Department of Crop Sciences, Institute of Plant Protection, University of Natural Resources and Life Sciences, Tulln an der Donau, Austria
| | - Krzysztof Wieczorek
- Department of Crop Sciences, Institute of Plant Protection, University of Natural Resources and Life Sciences, Tulln an der Donau, Austria.
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Zhou C, Zhu J, Qian N, Guo J, Yan C. Bacillus subtilis SL18r Induces Tomato Resistance Against Botrytis cinerea, Involving Activation of Long Non-coding RNA, MSTRG18363, to Decoy miR1918. FRONTIERS IN PLANT SCIENCE 2021; 11:634819. [PMID: 33613592 PMCID: PMC7887324 DOI: 10.3389/fpls.2020.634819] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
Mounting evidence has indicated that beneficial rhizobacteria can suppress foliar pathogen invasion via elicitation of induced systemic resistance (ISR). However, it remains elusive whether long non-coding RNAs (lncRNAs) are involved in the mediation of the rhizobacteria-primed ISR processes in plants. Herein, we demonstrated the ability of the rhizobacterial strain Bacillus subtilis SL18r to trigger ISR in tomato plants against the foliar pathogen Botrytis cinerea. Comparative transcriptome analysis was conducted to screen differentially expressed lncRNAs (DELs) between the non-inoculated and SL18r-inoculated plants. Among these DELs, four variants of MSTRG18363 possessed conserved binding sites for miR1918, which negatively regulates immune systems in tomato plants. The expression of MSTRG18363 in tomato leaves was significantly induced by SL18r inoculation. The transcription of MSTRG18363 was negatively correlated with the expression of miR1918, but displayed a positive correlation with the transcription of the RING-H2 finger gene SlATL20 (a target gene of miR1918). Moreover, MSTRG18363-overexpressing plants exhibited the enhanced disease resistance, reduction of miR1918 transcripts, and marked increases of SlATL20 expression. However, the SL18r-induced disease resistance was largely impaired in the MSTRG18363-silenced plants. VIGS-mediated SlATL20 silencing also greatly weakened the SL18r-induced disease resistance. Collectively, our results suggested that induction of MSTRG18363 expression in tomato plants by SL18r was conducive to promoting the decoy of miR1918 and regulating the expression of SlATL20, thereby provoking the ISR responses against foliar pathogen infection.
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Affiliation(s)
- Cheng Zhou
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-Saving Fertilizers, Nanjing Agricultural University, Nanjing, China
- Key Lab of Bio-Organic Fertilizer Creation, Ministry of Agriculture and Rural Affairs, Anhui Science and Technology University, Bengbu, China
| | - Jingjing Zhu
- Key Lab of Bio-Organic Fertilizer Creation, Ministry of Agriculture and Rural Affairs, Anhui Science and Technology University, Bengbu, China
| | - Nana Qian
- Key Lab of Bio-Organic Fertilizer Creation, Ministry of Agriculture and Rural Affairs, Anhui Science and Technology University, Bengbu, China
| | - Jiansheng Guo
- School of Medicine, Zhejiang University, Hangzhou, China
| | - Congsheng Yan
- Institute of Horticulture, Anhui Academy of Agricultural Sciences, Hefei, China
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