Crop and Environment最新文献

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Trend in yield and protein content relationship in a historical series of durum wheat varieties under rainfed and irrigated environments 雨养和灌溉环境下硬质小麦品种历史系列的产量和蛋白质含量关系趋势
Crop and Environment Pub Date : 2024-05-11 DOI: 10.1016/j.crope.2024.05.001
{"title":"Trend in yield and protein content relationship in a historical series of durum wheat varieties under rainfed and irrigated environments","authors":"","doi":"10.1016/j.crope.2024.05.001","DOIUrl":"10.1016/j.crope.2024.05.001","url":null,"abstract":"<div><p>Improving grain yield (GY) is a major goal of durum wheat breeding programs, and a high yield needs to be attained while preserving grain quality. The current study evaluated the changes caused by a breeding program on the association between GY and grain protein content (PC) in Moroccan durum wheat. Field experiments with six leading varieties released over three decades were conducted for three growing seasons under two water regimes. GY and PC were largely controlled by environmental effects, including both the growing season and water regime. The year of release and growing season effects were the predominant sources of variation in total chlorophyll content (TCC). A significant increase in GY with the year of release was observed under irrigated conditions, whereas a significant increase in PC over time was noted under rainfed conditions. In addition, a negative correlation was revealed between GY and PC, which was significant only in the rainfed trials. Similarly, a significant and positive association was noted between PC and TCC within the rainfed trials, but not in the irrigated trials. Based on GGE (genotype main effect plus genotype ​× ​environment interaction) biplot analysis, the new varieties ‘Marouane’ and ‘Faraj’ were identified as desirable varieties in terms of GY and PC close to the ‘ideal genotype’. These results indicated that when grown under current irrigated conditions, new varieties improved by the Moroccan breeding program showed better GY performance than old varieties.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 3","pages":"Pages 171-176"},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X24000194/pdfft?md5=4a936f9918a4ea6a456ee6d829920e34&pid=1-s2.0-S2773126X24000194-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141051123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Perspectives of improving rice photosynthesis for higher grain yield 改善水稻光合作用以提高产量的前景
Crop and Environment Pub Date : 2024-04-20 DOI: 10.1016/j.crope.2024.04.001
Dongliang Xiong
{"title":"Perspectives of improving rice photosynthesis for higher grain yield","authors":"Dongliang Xiong","doi":"10.1016/j.crope.2024.04.001","DOIUrl":"10.1016/j.crope.2024.04.001","url":null,"abstract":"<div><p>Many efforts have been made to enhance rice photosynthesis for higher grain yields, although such knowledge has seldom been integrated into rice breeding programs. In this review, I first address the limitations and challenges of the theory that yield is controlled by photosynthesis, a concept rooted in the fact that carbon forms a significant part of plant mass, with photosynthesis acting as the fundamental pathway for carbon assimilation. Subsequently, the discussion covers photosynthesis indices, their measurement techniques, and the challenges in establishing correlations between photosynthesis indices and yields. The review then delves into recent advancements, including leveraging natural variations, enhancing the electron transport chain, augmenting the efficiency of ribulose bisphosphate carboxylase/oxygenase (Rubisco), increasing CO<sub>2</sub> concentration around Rubisco, initiatives like the C<sub>4</sub> rice project, strategies for photorespiration bypass, and non-leaf photosynthesis contributions. The conclusion emphasizes future research directions such as advocating for the incorporation of photosynthesis within broader organismic processes, unraveling the complex link between photosynthesis and grain yield, developing efficient and direct methods for photosynthesis phenotyping, and assessing photosynthetic performance under actual field conditions.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 3","pages":"Pages 123-137"},"PeriodicalIF":0.0,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X2400011X/pdfft?md5=b9cce98263e714fef6f2021d55c44462&pid=1-s2.0-S2773126X2400011X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140758822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From wild to cultivated crops: general shift in morphological and physiological traits for yield enhancement following domestication 从野生到栽培作物:驯化后提高产量的形态和生理特征的总体变化
Crop and Environment Pub Date : 2024-03-14 DOI: 10.1016/j.crope.2024.03.001
Zhangying Lei , Ziliang Li , Wangfeng Zhang , Daohua He , Yali Zhang
{"title":"From wild to cultivated crops: general shift in morphological and physiological traits for yield enhancement following domestication","authors":"Zhangying Lei ,&nbsp;Ziliang Li ,&nbsp;Wangfeng Zhang ,&nbsp;Daohua He ,&nbsp;Yali Zhang","doi":"10.1016/j.crope.2024.03.001","DOIUrl":"10.1016/j.crope.2024.03.001","url":null,"abstract":"<div><p>Crop species undergo artificial selection as a result of domestication under agricultural field conditions. However, there is limited information on the pattern of how domestication alters leaf photosynthesis, morphology, and biomass and its allocation. In this review, we firstly introduced the concept of crop domestication, provided clarity on crop domestication syndrome, and emphasized the significance in the conservation and re-utilization of wild crop resources. Next, we discussed the variation in crop biomass and yield using a compiled dataset comprised of 54 wild and cultivated species. We subsequently summarized the general shift in physiological traits including higher growth and photosynthetic rates, light use efficiency, leaf area, chlorophyll, and nitrogen content, which may be associated with greater biomass and yield during crop domestication. We ended by identifying what has been learned on how domestication optimized plant performance to produce today's crops, and by providing some examples of how this knowledge was being exploited and redirected to drive crop improvement in the near future. These general patterns following crop domestication present several implications for offering valuable insights into shaping future genetic engineering targets and improving agricultural management practices.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 3","pages":"Pages 138-146"},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X24000108/pdfft?md5=35268ee55bf73fc7b48db300ab688afa&pid=1-s2.0-S2773126X24000108-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140281531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Light energy utilization and measurement methods in crop production 作物生产中的光能利用和测量方法
Crop and Environment Pub Date : 2024-02-28 DOI: 10.1016/j.crope.2024.02.003
Zhaohong Lu, Jing Gao, Qi Wang, Zili Ning, Xianming Tan, Yi Lei, Jie Zhang, Jiaqi Zou, Lingxuan Wang, Chenyao Yang, Wenyu Yang, Feng Yang
{"title":"Light energy utilization and measurement methods in crop production","authors":"Zhaohong Lu,&nbsp;Jing Gao,&nbsp;Qi Wang,&nbsp;Zili Ning,&nbsp;Xianming Tan,&nbsp;Yi Lei,&nbsp;Jie Zhang,&nbsp;Jiaqi Zou,&nbsp;Lingxuan Wang,&nbsp;Chenyao Yang,&nbsp;Wenyu Yang,&nbsp;Feng Yang","doi":"10.1016/j.crope.2024.02.003","DOIUrl":"10.1016/j.crope.2024.02.003","url":null,"abstract":"<div><p>Efficient solar energy utilization is a crucial determinant of crop yield formation. Moreover, various planting methods have dissimilar impacts on crop solar energy utilization and its measurement methods. This study examined the differences in solar energy utilization between monoculture and intercropping by considering density configuration, plant type arrangement, timing schedule, and spatial layout. We further evaluated the traditional methodologies versus remote sensing technology for solar energy measurements and described the differences in calculation methods for monoculture and intercropping, drawing from the photosynthesis model. Additionally, we discussed the potential advantages and limitations of employing remote sensing technology for the monitoring and prediction of solar energy utilization in field crops.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 2","pages":"Pages 91-100"},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X24000030/pdfft?md5=d685231be289bb969ad4b319eadab612&pid=1-s2.0-S2773126X24000030-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140465230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmental factors influence the responsiveness of potato tuber yield to growing season precipitation 环境因素影响马铃薯块茎产量对生长季降水量的响应性
Crop and Environment Pub Date : 2024-02-23 DOI: 10.1016/j.crope.2024.02.002
Funian Zhao , Qiang Zhang , Jun Lei , Heling Wang , Kai Zhang , Yue Qi
{"title":"Environmental factors influence the responsiveness of potato tuber yield to growing season precipitation","authors":"Funian Zhao ,&nbsp;Qiang Zhang ,&nbsp;Jun Lei ,&nbsp;Heling Wang ,&nbsp;Kai Zhang ,&nbsp;Yue Qi","doi":"10.1016/j.crope.2024.02.002","DOIUrl":"10.1016/j.crope.2024.02.002","url":null,"abstract":"<div><p>Understanding how environmental factors influence the responsiveness of crop yield to growing season precipitation (GSP) can reduce the risk of yield fluctuations, ensuring stable crop production. This study involved the cultivation of rainfed potatoes at three locations within the climatic transition zone of Northwest China. We employed stepwise linear regression and machine learning techniques to pinpoint the key environmental factors influencing potato tuber yield and the yield-precipitation relationship. The slope of the water-limited yield potential relationship for potatoes was determined to be 172.1 ​kg ​ha<sup>−1</sup> ​mm<sup>−1</sup>, with an intercept at 121.2 ​mm. The potato tuber yield exhibited an upward trend with increasing GSP but declined once the precipitation exceeded 400 ​mm. However, GSP alone explained up to 30% of the variability in potato tuber yield. Factors such as soil moisture at planting, maximum temperatures during the tuber stolon initiation and bulking stages, diurnal temperature fluctuations at maturity, and excessive precipitation events during the growing season significantly influenced potato tuber yield, and consequently, the relationship between yield and GSP. Conversely, climatic factors accounted for more than 63% of the variation in potato tuber yield, with the multiple linear regression model yielding the best results. This was especially evident when the yield-precipitation relationship was categorized into two groups based on the amount and distribution of GSP, maximum temperature, and radiation levels. This analysis suggested that preventing unnecessary water evaporation when precipitation is low, improving drainage when precipitation is high, and planting potato on an optimal date can advance potato production.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 2","pages":"Pages 112-122"},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X24000029/pdfft?md5=c9b986ee4fcc2b1ccae6e690fd884250&pid=1-s2.0-S2773126X24000029-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140464254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From hidden to visual K deficiency in plants: Integration of subcellular K+ distribution and photosynthetic performance 植物从隐性到显性 K 缺乏:亚细胞 K+ 分布与光合作用性能的整合
Crop and Environment Pub Date : 2024-02-15 DOI: 10.1016/j.crope.2024.02.001
Hehe Gu, Zhifeng Lu, Tao Ren, Jianwei Lu
{"title":"From hidden to visual K deficiency in plants: Integration of subcellular K+ distribution and photosynthetic performance","authors":"Hehe Gu,&nbsp;Zhifeng Lu,&nbsp;Tao Ren,&nbsp;Jianwei Lu","doi":"10.1016/j.crope.2024.02.001","DOIUrl":"10.1016/j.crope.2024.02.001","url":null,"abstract":"<div><p>The earliest occurrence of chlorosis at the tips of the oldest leaves is widely recognized as a reliable indicator for diagnosing potassium (K) deficiency and determining the need for K fertilizer. However, hidden K deficiency, typically associated with a decrease in individual leaf photosynthetic area, precedes the onset of visible yellowing symptoms. These concealed symptoms pose challenges for the early diagnosis of K deprivation in plants. The two distinct stages of deficiency exhibit different photosynthetic performances, which are speculated to be closely linked to the subcellular K<sup>+</sup> distribution. This minireview focuses on investigating K<sup>+</sup> dynamics across subcellular compartments, along with the involvement of functional transporter proteins and ion channels during K deficiency. We propose potential mechanisms by which subcellular K<sup>+</sup> regulates photosynthetic capacity under both hidden and visual K deficiency conditions, which sheds new light on the diagnosis of K deficiency. Additionally, future research prospects and areas deserving further investigation are also outlined.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 2","pages":"Pages 84-90"},"PeriodicalIF":0.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X24000017/pdfft?md5=5415ce86d015e980bdec4c5e2b27840f&pid=1-s2.0-S2773126X24000017-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139890308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ROS signaling and its involvement in abiotic stress with emphasis on heat stress-driven anther sterility in plants ROS 信号及其在非生物胁迫中的参与,重点是热胁迫驱动的植物花药不育症
Crop and Environment Pub Date : 2023-12-29 DOI: 10.1016/j.crope.2023.12.002
Wenbin Xu , Yuanmei Miao , Jie Kong , Keith Lindsey , Xianlong Zhang , Ling Min
{"title":"ROS signaling and its involvement in abiotic stress with emphasis on heat stress-driven anther sterility in plants","authors":"Wenbin Xu ,&nbsp;Yuanmei Miao ,&nbsp;Jie Kong ,&nbsp;Keith Lindsey ,&nbsp;Xianlong Zhang ,&nbsp;Ling Min","doi":"10.1016/j.crope.2023.12.002","DOIUrl":"10.1016/j.crope.2023.12.002","url":null,"abstract":"<div><p>With global warming, crop plants are challenged by heat stress during reproductive growth, leading to male sterility and yield reduction. The balance between reactive oxygen species (ROS) generation and scavenging is disrupted by stress, resulting in oxidative stress which is harmful to crop growth. However, recent advances have shown that ROS signaling via proteins that sense the redox state is positive for plant performance under stress. ROS signaling is also involved in regulating anther development, such as timely tapetum degeneration. We summarize recent progress in uncovering the mechanism of heat stress effects on ROS homeostasis and discuss the relationship between oxidative stress and metabolic disorder, which is often observed during anther development under heat stress. We propose experimental and breeding strategies to improve field crop tolerance to heat stress.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 2","pages":"Pages 65-74"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X23000795/pdfft?md5=b5b03528f47c4a0291e12394f8ee4fe0&pid=1-s2.0-S2773126X23000795-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139196247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Response of leaf day respiration in C4 plants to irradiance and vapour pressure deficit C4 植物叶昼呼吸对辐照度和蒸汽压不足的响应
Crop and Environment Pub Date : 2023-12-22 DOI: 10.1016/j.crope.2023.12.001
Boya Liu , Xuming Wang , Qi Liu , Yining Xu , Ashraf Muhammad Arslan , Dingming Zheng , Lei Li , Xiaoying Gong
{"title":"Response of leaf day respiration in C4 plants to irradiance and vapour pressure deficit","authors":"Boya Liu ,&nbsp;Xuming Wang ,&nbsp;Qi Liu ,&nbsp;Yining Xu ,&nbsp;Ashraf Muhammad Arslan ,&nbsp;Dingming Zheng ,&nbsp;Lei Li ,&nbsp;Xiaoying Gong","doi":"10.1016/j.crope.2023.12.001","DOIUrl":"10.1016/j.crope.2023.12.001","url":null,"abstract":"<div><p>Leaf day respiration rate (<em>R</em><sub>L</sub>) plays a crucial role in the global carbon cycle. However, <em>R</em><sub>L</sub> of C<sub>4</sub> species has not been sufficiently studied and its response to environmental factors is largely unknown. This work studied the response of <em>R</em><sub>L</sub> of three C<sub>4</sub> species, <em>Setaria viridis</em>, <em>Sorghum sudanense,</em> and <em>Zea mays</em>, to alterations in the vapour pressure deficit (VPD) and irradiance of the growth environment. <em>R</em><sub>L</sub> was estimated using the Kok method (<em>R</em><sub>L Kok</sub>) and an improved method that combined gas exchange and chlorophyll fluorescence measurements (<em>R</em><sub>L Yin</sub>). On average, shade treatment led to a 24% reduction in <em>R</em><sub>L Yin</sub> and a 20% reduction in respiration in the dark (<em>R</em><sub>Dk</sub>), while a consistent VPD effect on <em>R</em><sub>L</sub> was not observed. <em>R</em><sub>L</sub> and <em>R</em><sub>Dk</sub> were positively correlated with nitrogen content per leaf area and net CO<sub>2</sub> assimilation rate but were not correlated with the capacity of carboxylation enzymes. We found a non-significant light inhibition of respiration (1 ​± ​2%), contradicting the assumption that respiration is inhibited by light and affected by light intensity. Our findings indicate that assuming <em>R</em><sub>L</sub> to be equal to <em>R</em><sub>Dk</sub> at the same temperature is a straightforward but reliable approach to model respiration of the examined C<sub>4</sub> species.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 2","pages":"Pages 101-111"},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X23000783/pdfft?md5=6128c9e12f62dedbc897c3d2e41f1cc4&pid=1-s2.0-S2773126X23000783-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139016124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Balancing food security, vertebrate biodiversity, and healthy rice agroecosystems in Southeast Asia 平衡东南亚的粮食安全、脊椎动物生物多样性和健康的水稻农业生态系统
Crop and Environment Pub Date : 2023-12-06 DOI: 10.1016/j.crope.2023.11.005
Catherine R. Propper , Jodi L. Sedlock , Richard E. Smedley , Oliver Frith , Molly E. Shuman-Goodier , Alejandro Grajal-Puche , Alexander M. Stuart , Grant R. Singleton
{"title":"Balancing food security, vertebrate biodiversity, and healthy rice agroecosystems in Southeast Asia","authors":"Catherine R. Propper ,&nbsp;Jodi L. Sedlock ,&nbsp;Richard E. Smedley ,&nbsp;Oliver Frith ,&nbsp;Molly E. Shuman-Goodier ,&nbsp;Alejandro Grajal-Puche ,&nbsp;Alexander M. Stuart ,&nbsp;Grant R. Singleton","doi":"10.1016/j.crope.2023.11.005","DOIUrl":"10.1016/j.crope.2023.11.005","url":null,"abstract":"<div><p>Rice is the dominant food staple and an important economic resource throughout Asia. Lowland rice production also provides important wetland habitats in support of biodiversity that may provide ecosystem services back to the rice agroecosystems. This review summarizes the literature on the ecosystem benefits that amphibians, birds, bats, and rodents support in the context of the Southeast Asia rice agroecosystems. The literature provides evidence that these taxonomic groups contribute to cultural, regulatory, and provisioning services in support of smallholder farmers and may allow for economic benefits through reduced use of chemical inputs into crops. We encourage a multipronged research approach to bring stakeholders together to provide structured and scalable education programs that will lead to improved human and agroecosystem health through the promotion of understanding the positive feedbacks from biodiversity in these important agricultural wetland habitats.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 1","pages":"Pages 43-50"},"PeriodicalIF":0.0,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X2300076X/pdfft?md5=1e3217f51c74842e3740a30e2d625a4f&pid=1-s2.0-S2773126X2300076X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138620114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the responses of crop photosynthesis to CO2 elevation at the molecular, physiological, and morphological levels toward increasing crop production 从分子、生理和形态学层面探索作物光合作用对二氧化碳升高的反应,以提高作物产量
Crop and Environment Pub Date : 2023-12-02 DOI: 10.1016/j.crope.2023.11.006
Daisuke Sugiura , Yin Wang , Masaru Kono , Yusuke Mizokami
{"title":"Exploring the responses of crop photosynthesis to CO2 elevation at the molecular, physiological, and morphological levels toward increasing crop production","authors":"Daisuke Sugiura ,&nbsp;Yin Wang ,&nbsp;Masaru Kono ,&nbsp;Yusuke Mizokami","doi":"10.1016/j.crope.2023.11.006","DOIUrl":"10.1016/j.crope.2023.11.006","url":null,"abstract":"<div><p>Exploring the impact of elevated CO<sub>2</sub> on photosynthesis is vital for understanding plant responses to climate change. In C<sub>3</sub> plants, elevated CO<sub>2</sub> concentrations generally enhance CO<sub>2</sub> assimilation by increasing chloroplast CO<sub>2</sub> concentration. However, the underlying mechanisms are complex since photosynthesis involves multiple physiological processes operating at different time scales and varying among plant species. In this review, we focused on the responses of key photosynthetic processes in crop, including CO<sub>2</sub> diffusion conductances such as stomatal conductance (g<sub>s</sub>), mesophyll conductance (g<sub>m</sub>), photochemical reactions, the Calvin-Benson cycle, and related metabolic pathways. Short-term exposure to elevated CO<sub>2</sub> often decreases g<sub>s</sub> and g<sub>m</sub> while increasing the electron transport rate. However, long-term exposure to elevated CO<sub>2</sub> can decrease photosynthetic capacity due to coordinated downregulation of multiple processes, particularly when the sink‒source ratio declines. To enhance plant productivity under elevated CO<sub>2</sub>, it is crucial to maintain or enhance sink activity and understand the CO<sub>2</sub> response mechanisms at the molecular, physiological, and morphological levels. This review provides an update on the short- and long-term responses of g<sub>s</sub>, g<sub>m</sub>, electron transport system, and carbon assimilation metabolism to elevated CO<sub>2</sub>. Furthermore, it offers a perspective on improving crop production in the future with elevated CO<sub>2</sub> levels.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"3 2","pages":"Pages 75-83"},"PeriodicalIF":0.0,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X23000771/pdfft?md5=afbd7b6ef8ba441d6024e80e4fc87563&pid=1-s2.0-S2773126X23000771-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138626589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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