Article
Plant Sciences
Cristina Romero-Trigueros, Jose Maria Bayona Gambin, Pedro Antonio Nortes Tortosa, Juan Jose Alarcon Cabanero, Emilio Nicolas Nicolas
Summary: The study found that grapefruit is more susceptible to salinity and water stress, while mandarin is relatively more salt-tolerant but sensitive to water stress. This is mainly due to mandarin's low hydraulic conductance levels leading to severe drops in leaf water potential and hydraulic conductance losses in roots and canopy.
Article
Plant Sciences
Qiangqiang Zhang, Wei Tang, Zhuang Xiong, Shaobing Peng, Yong Li
Summary: Stomata in rice panicle are regulated by water and panicle photosynthesis is less sensitive to drought than leaf photosynthesis. Enhancing non-foliar green tissues' photosynthesis is beneficial for increasing crop yield.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Vinod Jacob, Brendan Choat, Amber C. Churchill, Haiyang Zhang, Craig V. M. Barton, Arjunan Krishnananthaselvan, Alison K. Post, Sally A. Power, Belinda E. Medlyn, David T. Tissue
Summary: This study investigated the hydraulic vulnerability of grass species and found that they have high resistance to xylem embolism. Reductions in stomatal conductance and leaf hydraulic conductance occurred even under mild water stress. The results suggest that factors other than xylem embolism contribute to reductions in productivity of pasture grasses during drought.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Amanda M. Salvi, Sophia G. Gosetti, Duncan D. Smith, Mark A. Adams, Thomas J. Givnish, Katherine A. McCulloh
Summary: This study investigates the relationship between hydroscape area (HA) and climatic conditions and functional traits across 10 Eucalyptus species in the Hawaiian Islands. The results show that HA decreases with increased P/E-p, and larger HA coincides with species that have higher sensitivity to mesophyll photosynthetic capacity.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Yu-Jie Yang, Min-Hui Bi, Zheng-Fei Nie, Hui Jiang, Xu-Dong Liu, Xiang-Wen Fang, Timothy J. Brodribb
Summary: Seed plants have been found to increase photosynthetic WUE under water stress, while ferns maintain a steady WUE under dehydration. This difference may give seed plants a competitive advantage over ferns in drought conditions.
Article
Forestry
Min-Hui Bi, Chao Jiang, Timothy Brodribb, Yu-Jie Yang, Guang-Qian Yao, Hui Jiang, Xiang-Wen Fang
Summary: Clarifying the mechanisms of gas exchange recovery after drought in plants is crucial for understanding plant drought adaptation and habitat distribution. However, these mechanisms are largely unknown. In this study, we investigated the role of ethylene in regulating stomatal reopening after moderate drought stress in Fraxinus chinensis seedlings. We found strong evidence that the slow stomatal reopening is regulated by a decrease in ethylene emission rate, rather than changes in leaf hydraulics or ABA levels. This finding opens up new possibilities for understanding plant drought adaptation.
Article
Plant Sciences
Shenglan Li, Fulai Liu
Summary: Plants have developed multiple strategies to adapt to changing climate, such as increased CO2 concentration and intensified drought stress. The study found that exogenous ABA application improved leaf water potential and decreased stomatal conductance, with a less pronounced effect in plants grown under high CO2 levels. ABA can affect concentrations in leaves and xylem sap under drought conditions.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Lili Guo, Marie Louise Borno, Wenquan Niu, Fulai Liu
Summary: Biochar amendment has benefits for improving soil water holding capacity and plant growth under reduced irrigation and N fertilizer regimes. Despite reducing leaf N content, biochar amendment enhances plant water status, gas exchange rates, and water use efficiency under deficit irrigation, leading to increased biomass of tomato plants. The increase in soil pH by biochar does not amplify ABA signaling inducing early stomatal closure, but rather contributes to the enhanced plant water use and growth.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Plant Sciences
Zhuang Xiong, Zhigang Dun, Yucheng Wang, Desheng Yang, Dongliang Xiong, Kehui Cui, Shaobing Peng, Jianliang Huang
Summary: Stomatal morphology plays an important role in regulating leaf gas exchange and photosynthetic efficiency under fluctuating light conditions. Smaller and denser stomata lead to faster stomatal response to light fluctuations but lower intrinsic water use efficiency. Stomatal morphology has less impact on stomatal conductance, and there is minimal correlation between steady-state and non-steady-state stomatal conductance among different genotypes. These findings highlight the significance of stomatal morphology in optimizing photosynthetic efficiency and plant growth under fluctuating light.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Jie Xiang, Laura H. Vickers, Martin C. Hare, Peter S. Kettlewell
Summary: The use of film antitranspirant (AT) can effectively reduce yield losses of rapeseed crops under drought conditions. Increasing the concentration of film AT can further improve the yield of rapeseed, which is associated with the improvement of leaf water status.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Plant Sciences
Yuxin Han, Jiandong Wang, Yanqun Zhang, Shuji Wang
Summary: This study investigated the drought resistance of two maize cultivars released in different years under different environmental factors (CO2 concentration and irrigation). The results showed that higher CO2 concentrations improved water use efficiency (WUE) and drought conditions significantly enhanced WUE. Jingke 968 exhibited higher WUE under higher CO2 concentration and light intensity.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Lena Hunt, Michal Fuksa, Karel Klem, Zuzana Lhotakova, Michal Oravec, Otmar Urban, Jana Albrechtova
Summary: This study investigated the effects of atmospheric CO2 concentration and light intensity on stomatal behavior in barley, finding that stomatal density is influenced by genotype, light, and CO2 conditions. Biochemical parameters related to stomatal behavior were also explored. Variability was observed between the two barley varieties in terms of stomatal density, sugar accumulation, and abscisic acid levels.
Article
Plant Sciences
Shuang Li, Junming Liu, Hao Liu, Rangjian Qiu, Yang Gao, Aiwang Duan
Summary: The study revealed that under drought conditions, stomatal conductance (g(s)) was more sensitive than mesophyll conductance (g(m). ABA was involved in coordinating reductions of g(s) and g(m), thereby regulating net photosynthesis (A(n)) and intrinsic water use efficiency (WUEi).
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Qi Liao, Shujie Gu, Shaozhong Kang, Taisheng Du, Ling Tong, Jeffrey D. Wood, Risheng Ding
Summary: The study reveals that mild water and salt stress can enhance the water use efficiency of maize by affecting leaf osmotic adjustment and hydraulic resistance to reduce stomatal conductance and lower net photosynthesis rate. Furthermore, combined water and salt stress can reduce transpiration, stabilize yield, and improve grain water use efficiency by decreasing stomatal conductance, maintaining photosynthetic capacity, and enhancing harvest index, providing a novel approach for efficient water and salt management.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Yuhan Yang, Xiaolin Ma, Lu Yan, Yingchao Li, Suhan Wei, Zhipeng Teng, Hong Zhang, Wei Tang, Shaobing Peng, Yong Li
Summary: This study compares rice and wheat to understand the mechanisms determining drought tolerance capacity. The results show that rice is more sensitive to drought stress and experiences more severe root shrinkage, leading to a decline in water conductance and photosynthesis. Additionally, the plasticity of root morphology and anatomy plays an important role in determining drought tolerance capacity.
Article
Plant Sciences
Hyungmin Rho, Sharon Lafferty Doty, Soo-Hyung Kim
JOURNAL OF EXPERIMENTAL BOTANY
(2020)
Article
Microbiology
Hyungmin Rho, Victor Van Epps, Soo-Hyung Kim, Sharon L. Doty
Article
Biodiversity Conservation
Gatien N. Falconnier, Marc Corbeels, Kenneth J. Boote, Francois Affholder, Myriam Adam, Dilys S. MacCarthy, Alex C. Ruane, Claas Nendel, Anthony M. Whitbread, Eric Justes, Lajpat R. Ahuja, Folorunso M. Akinseye, Isaac N. Alou, Kokou A. Amouzou, Saseendran S. Anapalli, Christian Baron, Bruno Basso, Frederic Baudron, Patrick Bertuzzi, Andrew J. Challinor, Yi Chen, Delphine Deryng, Maha L. Elsayed, Babacar Faye, Thomas Gaiser, Marcelo Galdos, Sebastian Gayler, Edward Gerardeaux, Michel Giner, Brian Grant, Gerrit Hoogenboom, Esther S. Ibrahim, Bahareh Kamali, Kurt Christian Kersebaum, Soo-Hyung Kim, Michael van der Laan, Louise Leroux, Jon I. Lizaso, Bernardo Maestrini, Elizabeth A. Meier, Fasil Mequanint, Alain Ndoli, Cheryl H. Porter, Eckart Priesack, Dominique Ripoche, Tesfaye S. Sida, Upendra Singh, Ward N. Smith, Amit Srivastava, Sumit Sinha, Fulu Tao, Peter J. Thorburn, Dennis Timlin, Bouba Traore, Tracy Twine, Heidi Webber
GLOBAL CHANGE BIOLOGY
(2020)
Article
Horticulture
Hyungmin Rho, Paul Colaizzi, James Gray, Li Paetzold, Qingwu Xue, Bhimanagouda Patil, Charles Rush
Article
Environmental Sciences
Yasmine A. Farhat, Soo-Hyung Kim, Angelia L. Seyfferth, Long Zhang, Rebecca B. Neumann
Summary: Climate change is expected to increase growing temperatures in rice cultivating regions worldwide, leading to elevated arsenic concentrations in rice tissue which may impact its absorption and transport mechanisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Plant Sciences
Kyungdahm Yun, Dennis Timlin, Soo-Hyung Kim
Article
Environmental Sciences
Kristie L. Ebi, C. Leigh Anderson, Jeremy J. Hess, Soo-Hyung Kim, Irakli Loladze, Rebecca B. Neumann, Deepti Singh, Lewis Ziska, Robert Wood
Summary: Essential nutrients are crucial for human health and development, with inadequate intake having negative impacts. Rising CO2 concentrations can affect the nutritional quality of plants, potentially impacting human health. Bridging data and knowledge gaps is key to addressing critical challenges in nutrition and food security.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Agronomy
Manuel Marcaida, Yasmine Farhat, E-Nieng Muth, Chou Cheythyrith, Lyda Hok, Gordon Holtgrieve, Faisal Hossain, Rebecca Neumann, Soo-Hyung Kim
Summary: The increase in hydropower dams along the upper Mekong River has altered the surface water hydrology in the region, impacting arable areas and soil qualities for rice production. Rising temperatures are predicted to substantially reduce rice yields, but optimizing nitrogen fertilization timing and amount can increase productivity.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Agronomy
Susan A. O'Shaughnessy, Hyungmin Rho, Paul D. Colaizzi, Fekede Workneh, Charles M. Rush
Summary: This study quantifies the impact of zebra chip (ZC) disease on potato crop response and investigates the relationship between irrigation level and disease severity. The results show that ZC disease significantly reduces tuber yield and crop water productivity. Irrigation does not alleviate the severity of the disease, suggesting that withholding irrigation in affected areas could be beneficial.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
Hyungmin Rho, Susan A. O'Shaughnessy, Paul D. Colaizzi, Fekede Workneh, Li Paetzold, Charles M. Rush
Summary: This study investigates the physiological responses of potato plants infected with Candidatus Liberibacter solanacearum, a bacterial pathogen transmitted by potato psyllids. The results show that infection leads to a gradual deterioration of key physiological parameters such as photosynthetic rate and transpiration rate. These findings are important for crop management decisions and early disease detection.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
Kyungdahm Yun, Soo-Hyung Kim
Summary: Cropbox is a novel modelling framework that simplifies crop modelling by adopting a declarative approach and providing a domain-specific language. It reduces technical debt and allows modellers to focus on high-level abstractions rather than low-level implementation details.
Article
Horticulture
Ji-Jhong Chen, Youping Sun, Lorence R. Oki, Jared A. Sisneroz, Karrie Reid, Lloyd L. Nackley, Ryan N. Contreras, Soo-Hyung Kim, Ursula K. Schuch, Darren L. Haver, Miro Stuke, Allison Fron, Kelly Kopp, Scott B. Jones, Lawrence Hipps
Summary: Increased water demand in the arid western United States due to population growth has been restricted by limited water availability resulting from inadequate precipitation. This study examined the impact of reduced irrigation frequency on five garden rose cultivars and found that decreased irrigation frequency led to wilting of leaves and reduced plant growth, with two cultivars exhibiting a decrease in visual quality. Stomatal conductance of rose plants also decreased with decreased irrigation frequency.
Article
Agronomy
Yasmine A. Farhat, Soo-Hyung Kim, Rebecca B. Neumann
Summary: Recent studies have shown that elevated temperatures caused by climate change can increase arsenic concentrations in rice. It is still uncertain whether the timing of heat exposure affects the accumulation of arsenic in rice plants. Results indicate that continuous heat exposure and heat spikes during the ripening stage can increase the arsenic content in rice.