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Zhao N, Zhao J, Li S, Li B, Lv J, Gao X, Xu X, Lu S. The Response of Endogenous ABA and Soluble Sugars of Platycladus orientalis to Drought and Post-Drought Rehydration. Biology (Basel) 2024; 13:194. [PMID: 38534463 DOI: 10.3390/biology13030194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024]
Abstract
To uncover the internal mechanisms of various drought stress intensities affecting the soluble sugar content in organs and its regulation by endogenous abscisic acid (ABA), we selected the saplings of Platycladus orientalis, a typical tree species in the Beijing area, as our research subject. We investigated the correlation between tree soluble sugars and endogenous ABA in the organs (comprised of leaf, branch, stem, coarse root, and fine root) under two water treatments. One water treatment was defined as T1, which stopped watering until the potted soil volumetric water content (SWC) reached the wilting coefficient and then rewatered the sapling. The other water treatment, named T2, replenished 95% of the total water loss of one potted sapling every day and irrigated the above-mentioned sapling after its SWC reached the wilt coefficients. The results revealed that (1) the photosynthetic physiological parameters of P. orientalis were significantly reduced (p < 0.05) under fast and slow drought processes. The photosynthetic physiological parameters of P. orientalis in the fast drought-rehydration treatment group recovered faster relative to the slow drought-rehydration treatment group. (2) The fast and slow drought treatments significantly (p < 0.05) increased the ABA and soluble sugar contents in all organs. The roots of the P. orientalis exhibited higher sensitivity in ABA and soluble sugar content to changes in soil moisture dynamics compared to other organs. (3) ABA and soluble sugar content of P. orientalis showed a significant positive correlation (p < 0.05) under fast and slow drought conditions. During the rehydration stage, the two were significantly correlated in the T2 treatment (p < 0.05). In summary, soil drought rhythms significantly affected the photosynthetic parameters, organ ABA, and soluble sugar content of P. orientalis. This study elucidates the adaptive mechanisms of P. orientalis plants to drought and rehydration under the above-mentioned two water drought treatments, offering theoretical insights for selecting and cultivating drought-tolerant tree species.
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Affiliation(s)
- Na Zhao
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
| | - Jiahui Zhao
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Shaoning Li
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Bin Li
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
| | - Jiankui Lv
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Xin Gao
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaotian Xu
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
| | - Shaowei Lu
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093, China
- Beijing Yanshan Forest Ecosystem Research Station, National Forest and Grassland Administration, Beijing 100093, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
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Sun YW, Wang XY, Liu L, Zhang Q, Xi YJ, Wang PW. Cloning and functional study of GmRPI2, which is the critical gene of photosynthesis in soybean. Breed Sci 2023; 73:290-299. [PMID: 37840982 PMCID: PMC10570876 DOI: 10.1270/jsbbs.23002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/18/2023] [Indexed: 10/17/2023]
Abstract
Light provides energy for photosynthesis and is also an important environmental signal that regulates plant growth and development. Ribose-5-phosphate isomerase plays a crucial role in photosynthesis. However, ribose-5-phosphate isomerase has yet to be studied in soybean photosynthesis. To understand the biological function of GmRPI2, in this study, GmRPI2 was cloned, plant overexpression vectors and gene editing vectors were successfully constructed, and transformed into recipient soybean JN74 using the Agrobacterium-mediated method. Using qRT-PCR, we analyzed that GmRPI2 gene expression was highest in leaves, second highest in roots, and lowest in stems. Promoter analysis revealed the presence of multiple cis-acting elements related to light response in the promoter region of GmRPI2. Compared with the control soybean plants, the net photosynthetic rate and transpiration rate of the overexpression lines were higher than those of the control and gene editing lines, while the intercellular CO2 concentration was significantly lower than that of the control and gene editing lines; the total chlorophyll, chlorophyll a, chlorophyll b contents and soluble sugar contents of the overexpression plants were significantly higher than those of the recipient and editing plants, indicating that the GmRPI2 gene can increase The GmRPI2 gene can increase the photosynthetic capacity of soybean plants, providing a theoretical basis and genetic resources for improving soybean yield by regulating photosynthetic efficiency.
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Affiliation(s)
- Yu Wei Sun
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Xin Yu Wang
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Lu Liu
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Qi Zhang
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Yong Jing Xi
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
| | - Pi Wu Wang
- JiLin Agricultural University, The Center of Plant Biotechnology, Chang Chun 130118, China
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Didion‐Gency M, Gessler A, Buchmann N, Gisler J, Schaub M, Grossiord C. Impact of warmer and drier conditions on tree photosynthetic properties and the role of species interactions. New Phytol 2022; 236:547-560. [PMID: 35842790 PMCID: PMC9804646 DOI: 10.1111/nph.18384] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/07/2022] [Indexed: 06/01/2023]
Abstract
Increased temperature and prolonged soil moisture reduction have distinct impacts on tree photosynthetic properties. Yet, our knowledge of their combined effect is limited. Moreover, how species interactions alter photosynthetic responses to warming and drought remains unclear. Using mesocosms, we studied how photosynthetic properties of European beech and downy oak were impacted by multi-year warming and soil moisture reduction alone or combined, and how species interactions (intra- vs inter-specific interactions) modulated these effects. Warming of +5°C enhanced photosynthetic properties in oak but not beech, while moisture reduction decreased them in both species. Combined warming and moisture reduction reduced photosynthetic properties for both species, but no exacerbated effects were observed. Oak was less impacted by combined warming and limited moisture when interacting with beech than in intra-specific stands. For beech, species interactions had no impact on the photosynthetic responses to warming and moisture reduction, alone or combined. Warming had either no or beneficial effects on the photosynthetic properties, while moisture reduction and their combined effects strongly reduced photosynthetic responses. However, inter-specific interactions mitigated the adverse impacts of combined warming and drought in oak, thereby highlighting the need to deepen our understanding of the role of species interactions under climate change.
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Affiliation(s)
- Margaux Didion‐Gency
- Forest Dynamics Research Unit, Swiss Federal Institute for Forest, Snow and Landscape WSLCH‐8903BirmensdorfSwitzerland
| | - Arthur Gessler
- Forest Dynamics Research Unit, Swiss Federal Institute for Forest, Snow and Landscape WSLCH‐8903BirmensdorfSwitzerland
- Institute of Terrestrial Ecosystems, ETH ZurichCH‐8092ZurichSwitzerland
| | - Nina Buchmann
- Institute of Agricultural Sciences, ETH ZurichCH‐8092ZurichSwitzerland
| | - Jonas Gisler
- Forest Dynamics Research Unit, Swiss Federal Institute for Forest, Snow and Landscape WSLCH‐8903BirmensdorfSwitzerland
| | - Marcus Schaub
- Forest Dynamics Research Unit, Swiss Federal Institute for Forest, Snow and Landscape WSLCH‐8903BirmensdorfSwitzerland
| | - Charlotte Grossiord
- Plant Ecology Research Laboratory PERL, School of Architecture, Civil and Environmental EngineeringEPFLCH‐1015LausanneSwitzerland
- Community Ecology Unit, Swiss Federal Institute for Forest, Snow and Landscape WSLCH‐1015LausanneSwitzerland
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Xuan HM, Shi HZ, Guo QS, Zhang HN, Lei M, Wang CL. [Effects of light intensity on physio-biochemical characteristics of Chrysanthemum indicum]. Zhongguo Zhong Yao Za Zhi 2020; 45:1620-1626. [PMID: 32489041 DOI: 10.19540/j.cnki.cjcmm.20200205.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
By analyzing the effects of light intensity on the growth, physiological and biochemical characteristics of Chrysanthemum indicum, the light intensity suitable for the growth of Ch. indicum was revealed, which provided a reference for the planting of Ch. indicum. There were five treatment groups of Ch. indicum, which was planted under 100%, 80%, 60%, 40% and 20% all natural light intensity conditions, respectively. In the meantime, these indicators of photosynthetic physiology, such as relative growth, photosynthetic pigment content, photosynthetic parameters, and chlorophyll fluorescence parameters etc. were measured in the peak period of growth of Ch. indicum as well as related indicators of the protective enzyme system, and the ultrastructure of chloroplast was observed with the use of transmission electron microscope technique. In our study, the results showed that the leaves of Ch. indicum occurred yellow phenomenon in different degrees when Ch. indicum was placed at more than 80% of the total natural light intensity condition, the height and stem diameter of plant reached the maximum at 60% of the total natural light intensity. More importantly, the number of branches of Ch. indicum was significantly increased under the total natural light intensity of more than 60%. Both the content of photosynthetic pigment and net photosynthetic rate were negatively correlated with light intensity, while photosynthetic parameters and chlorophyll fluorescence parameters showed a trend of rising first and then decreasing with the decrease of light intensity. The physiological indexes of Ch.indicum including stomatal conductivity, intracellular CO_2 concentration, transpiration rate, water use efficiency and actual photochemical quantum yield of PS Ⅱ had been determined, and the results showed that all of them were at the highest level under 60% total natural light intensity condition. The chloroplast structure of Ch. indicum was not obviously abnormal under 60% and 80% total natural light intensity treatments, but the stroma lamella was broken under 100% total natural light intensity, and not only the number of chloroplast, but also the number and volume of starch grains were decreased significantly under 20% and 40% total natural light intensity. With the decrease of light intensity, the enzymes activities of SOD and CAT decreased, the activity of POD increased in the early stage and decreased in the later stage, and the content of MDA showed a decreasing trend. The analysis of results indicated that the Ch. indicum can grow under 20%-100% total natural light intensity, but the best growth condition was under 60% total natural light intensity.
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Affiliation(s)
- Han-Mei Xuan
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University Nanjing 210095, China
| | - Hong-Zhuan Shi
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University Nanjing 210095, China
| | - Qiao-Sheng Guo
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University Nanjing 210095, China
| | - Hui-Ning Zhang
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University Nanjing 210095, China
| | - Meng Lei
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University Nanjing 210095, China
| | - Chang-Lin Wang
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University Nanjing 210095, China
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Makabe S, Yamori W, Kong K, Niimi H, Nakamura I. Expression of rice 45S rRNA promotes cell proliferation, leading to enhancement of growth in transgenic tobacco. Plant Biotechnol (Tokyo) 2017; 34:29-38. [PMID: 31275005 PMCID: PMC6543702 DOI: 10.5511/plantbiotechnology.17.0216a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 02/16/2017] [Indexed: 06/09/2023]
Abstract
An increase in plant biomass production is desired to reduce emission of carbon dioxide emissions and arrest global climate change because it will provide a more source of energy production than fossil fuels. Recently, we found that forced expression of the rice 45S rRNA gene increased aboveground growth by ca. 2-fold in the transgenic Arabidopsis plants. Here, we created transgenic tobacco plants harboring the rice 45S rRNA driven by the maize ubiquitin promoter (UbiP::Os45SrRNA) or cauliflower mosaic virus 35S promoter (35SP::Os45SrRNA). In 35SP::Os45SrRNA and UbiP::Os45SrRNA transgenic tobacco plants, the leaf length and size were increased compared with control plants, leading to an increase of aboveground growth (dry weight) up to 2-fold at the early stage of seedling development. Conversely, leaf physiological traits, such as photosynthetic capacity, stomatal characteristics, and chlorophylls and RuBisCO protein contents, were similar between the transgenic and control plants. Flow cytometry analysis indicated that the transgenic plants had enhanced cell-proliferation especially in seedling root and leaf primordia. Microarray analysis revealed that genes encoding transcription factors, such as GIGANTEA-like, were more than 2-fold up-regulated in the transgenic plants. Although the mechanism underlying the increased growth has yet to be elucidated, this strategy could be used to increase biomass production in cereals, vegetables, and bio-energy plants.
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Affiliation(s)
- So Makabe
- Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba 271-8510, Japan
| | - Wataru Yamori
- Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kynet Kong
- Cambodian Agricultural Research and Development Institute, Phnom Penh, Cambodia
| | - Hiroyuki Niimi
- Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba 271-8510, Japan
| | - Ikuo Nakamura
- Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba 271-8510, Japan
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Gao S, Wang G, Yang R, Xie X, Pan G, Xu P, Zhu J. VARIATIONS IN THE CELL WALLS AND PHOTOSYNTHETIC PROPERTIES OF PORPHYRA YEZOENSIS (BANGIALES, RHODOPHYTA) DURING ARCHEOSPORE FORMATION(1). J Phycol 2011; 47:839-845. [PMID: 27020020 DOI: 10.1111/j.1529-8817.2011.01003.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The formation of archeospores is characteristic of Porphyra yezoensis Ueda and is important for Porphyra aquaculture. Recently, it has been regarded as a valuable seed source for propagation of thalli in mariculture. Cell wall composition changes are associated with archeospore formation in P. yezoensis. Here, we report changes of cell walls of P. yezoensis during archeospore formation. The surfaces of vegetative cells that were originally smooth became rougher and more protuberant as archeosporangia were formed. Ultimately, the cell walls of archeosporangia ruptured, and archeospores were released from the torn cell walls that were left at distal margins of thalli. With changes in cell walls, both effective quantum yield and maximal quantum yield of the same regions in thalli gradually increased during the transformation of vegetative cells to archeospores, suggesting that the photosynthetic properties of the same regions in thalli gradually increased. Meanwhile, photosynthetic parameters for different sectors of thalli were determined, which included the proximal vegetative cells, archeosporangia, and newly released archeospores. The changes in photosynthetic properties of different sectors of thalli were in accordance with that of the same regions in thalli at different stages. In addition, the photosynthetic responses of archeosporangia to light showed higher saturating irradiance levels than those of vegetative cells. All these results suggest that archeosporangial cell walls were not degraded prior to release but were ruptured via bulging of the archeospore within the sporangium, and ultimately, archeospores were discharged. The accumulation of carbohydrates during archeospore formation in P. yezoensis might be required for the release of archeospores.
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Affiliation(s)
- Shan Gao
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
| | - Guangce Wang
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
| | - Ruiling Yang
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
| | - Xiujun Xie
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
| | - Guanghua Pan
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
| | - Pu Xu
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
| | - Jianyi Zhu
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences (IOCAS), Qingdao 266071, ChinaCollege of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, ChinaDepartment of Biology, Changshu Institute of Technology, Changshu 215500, China
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