Article
Environmental Sciences
Qiaozhi Mao, Lingzhi Tang, Wenwen Ji, Heinz Rennenberg, Bin Hu, Ming Ma
Summary: The study found that rice growth in Hg polluted soil under ECO2 conditions is influenced by various factors, with ECO2 increasing rice yield and leaf water use efficiency, but having no effect on leaf chlorophyll content and leaf mass per area. Soil Hg pollution significantly affects the light saturated CO2 assimilation rate of rice leaves.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Plant Sciences
Jyotirmaya Mathan, Anuradha Singh, Aashish Ranjan
Summary: Source-sink relationships play a crucial role in determining overall crop performance. Variations in source-sink dynamics between cultivated rice and wild rice contribute to differences in biomass and grain yield. The wild rice, Oryza australiensis, tends to prioritize the synthesis of structural carbohydrates for high biomass, while the cultivated rice, Oryza sativa cv. Nipponbare, favors high grain yield through the accumulation of transitory starch in the stem. Vascular features, sucrose transport, and sugar metabolic enzyme functions explain these differences in source-sink relationships.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Weilu Wang, Jiang He, Zhiqin Wang, Junfei Gu, Lijun Liu, Weiyang Zhang, Lewis H. Ziska, Jianguo Zhu
Summary: This study found significant differences in leaf net photosynthesis, biochemical characteristics, nitrogen enzymatic activity, and chlorophyll concentration between the two rice cultivars YD6 and W23 under elevated CO2 levels, with YD6 showing higher values. Additionally, a higher ratio of carbon sinks to carbon sources in YD6 compared to W23 was associated with increased cytokinins and slower flag leaf senescence under elevated CO2 conditions.
PHYSIOLOGIA PLANTARUM
(2021)
Review
Biochemistry & Molecular Biology
Yunfei Wu, Wenchun Fang, Wangmenghan Peng, Min Jiang, Gang Chen, Fei Xiong
Summary: Research has shown that phloem loading of sucrose in rice is achieved through the functions of sucrose transporters and sugar export proteins, which are regulated by transcription factors such as OsDOF11 and OsNF-YB1. Additionally, environmental factors like CO2 concentration, drought stress, and increased temperature can also impact the transcription levels of sucrose transporter genes.
PLANT SIGNALING & BEHAVIOR
(2021)
Article
Agronomy
Yonghui Fan, Liangliang Ma, Jinhao Yang, Wenjin Ding, Wei He, Yu Tang, Guoji Cui, Wenjing Zhang, Shangyu Ma, Chuanxi Ma, Zhenglai Huang
Summary: This study aimed to evaluate the effects of night warming during different growth stages on wheat grain yield, dry matter accumulation and distribution, photosynthetic characteristics, and enzymes related to sucrose metabolism. The results showed that early vegetative night warming improved the photosynthetic capacity of the flag leaves during the grain-filling stage, promoted post-anthesis accumulation of dry matter, and enhanced the transfer of dry matter to the grains, ultimately benefiting the yield.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Agronomy
Etsushi Kumagai, Toshihiro Hasegawa
Summary: Farm yields in major soybean-producing regions, such as the United States, have increased due to genetic improvements in net photosynthetic rate (P-N). However, farm yields in Japan have remained low and unchanged, indicating a lack of progress in improving yield and P-N through recent breeding. This study compares the P-N and related physiological traits of soybean cultivars from Japan and the United States to determine the differences and identify potential traits for improvement in Japanese cultivars.
Article
Agronomy
Jennifer M. Sloan, Azzami Adam Muhamad Mujab, Jusoh Mashitah, Berahim Zulkarami, Matthew J. Wilson, Liang Su Toh, A. Jalil Nur Zahirah, Kamaruzali Afiq, Ahmad Tajuddin Asyraf, Xin-Guang Zhu, Nazmin Yaapar, Andrew J. Fleming
Summary: Tillering in rice is influenced by both genetic factors and the environment. In this study, it was found that even moderate exposure to elevated CO2 can induce tillering in rice seedlings. A cost-effective growth system was then developed to increase CO2 levels and enhance tillering, leading to increased panicle number and 1000 grain weight in mature rice plants.
Article
Agronomy
Jinyuan Zhang, Yansheng Li, Zhenhua Yu, Jonathan Adams, Caixian Tang, Guanghua Wang, Xiaobing Liu, Junjie Liu, Ashley Franks, Judong Liu, Shaoqing Zhang, Jian Jin
Summary: This study investigated the responses of rice cultivars to climate change in terms of soil- or fertilizer-derived nitrogen (N) uptake and yield. The results showed that elevated atmospheric CO2 and warming increased N uptake by rice plants, with soil-N being the main source of the increased N. The increased N uptake resulted in enhanced rice yield. Urea application did not affect the yield response to climate change, but stimulated the uptake of soil-derived N. The genetic improvement of rice germplasm did not alter the response of N acquisition to climate change. The study suggests that climate change may deplete the recalcitrant soil N pool in paddy soils and fertilizer-N-use efficiency should be considered in future breeding for climate-adapted rice genotypes.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Plant Sciences
Min Shen, Chuang Cai, Lian Song, Jiangbo Qiu, Chuanqi Ma, Dongming Wang, Xinyue Gu, Xiong Yang, Wei Wei, Ye Tao, Jishuang Zhang, Gang Liu, Chunwu Zhu
Summary: This study conducted field experiments to investigate the effects of CO2 and temperature on rice sheath blight disease. The results showed that the severity of the disease varied with different CO2 levels and temperature treatments. Additionally, the combination of elevated CO2 and temperature had a negative impact on rice yield and biomass.
FRONTIERS IN PLANT SCIENCE
(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
Chemistry, Physical
Padmanabh B. B. Joshi, Andrew J. J. Wilson
Summary: Measurement of the potential-dependent temporal evolution of intermediates is a critical part in understanding and improving the selectivity and reactivity in electrochemical reactions. In this study, pulsed-potential electrochemical Raman scattering microscopy was applied to measure the evolution of CO during electrocatalytic CO2 reduction on Ag electrodes. Our strategy allows for direct measurement of the temporal evolution of intermediates, providing faster and more accurate results.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Plant Sciences
Mengting Qin, Ennan Zheng, Dingmu Hou, Xuanchen Meng, Fanxiang Meng, Yu Gao, Peng Chen, Zhijuan Qi, Tianyu Xu
Summary: The influence of global climate change on agricultural productivity is an ongoing concern. A database of future crop yield changes was developed, which found that maximum temperature, precipitation, adaptation measures, study area, and climate model had significant effects on changes in crop yield. Higher CO2 concentrations and suitable management strategies could mitigate the negative effects of warming temperatures, and crop yield with adaptation measures increased significantly compared to crop yield without adaptation measures. The results can guide policy and adaptation plans for increasing crop systems' resilience in the future.
Article
Plant Sciences
Chunyu Zhang, Yansheng Li, Zhenhua Yu, Guanghua Wang, Xiaobing Liu, Junjie Liu, Judong Liu, Xingmei Zhang, Kuide Yin, Jian Jin
Summary: Crop photosynthetic capacity and adaptability to climate change are likely to be constrained. This study examines the dynamics of photosynthetic parameters in three rice cultivars under different treatments. Elevated CO2 significantly increased the photosynthetic rate and yield, while warming had a weaker effect on photosynthesis. The co-elevation of CO2 and temperature decreased stomatal conductance and improved water use efficiency.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Yuxuan Miao, Yao Cai, Hao Wu, Dan Wang
Summary: The study found that elevated CO2 significantly increased the net photosynthetic rate of rice, especially during the jointing stage. This stimulation was acclimated with the advance of the growing season and was not affected by stomatal limitations or Rubisco activity.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Diego Portalanza, Finbarr G. Horgan, Valeria Pohlmann, Santiago Vianna Cuadra, Malena Torres-Ulloa, Eduardo Alava, Simone Ferraz, Angelica Durigon
Summary: Rice, as a staple food for over 50% of the world's population, may need to increase production by more than 70% before 2050 to meet global food requirements, despite challenges posed by environmental degradation, climate change, and extreme weather events. This study predicts that rice production in Ecuador may be negatively affected under the Representative Concentration Pathway 8.5, but may have a smaller impact under pathway 2.6.