Article
Biochemistry & Molecular Biology
Meng Tan, Muhammad Jawad Hassan, Yan Peng, Guangyan Feng, Linkai Huang, Lin Liu, Wei Liu, Liebao Han, Zhou Li
Summary: Due to global warming and climate change, drought poses a serious threat to horticultural crop cultivation. The study found that pretreatment with spermine (Spm) significantly improved drought tolerance in creeping bentgrass. The Spm pretreatment increased the accumulation of endogenous PAs, enhanced PAs metabolism, improved GABA and nitrogen metabolism, and regulated the TCA cycle, contributing to better drought tolerance. The study provides a comprehensive understanding of PAs interaction with other metabolic pathways in regulating drought tolerance in grass species.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Maria Carmen Pinero, Gines Otalora, Josefa Lopez-Marin, Francisco M. del Amor
Summary: The study found that cucumber plants exhibit different responses to nitrogen and CO2 concentrations, affecting their physiological and biochemical processes. Specifically, plants grown with NH4+ and e[CO2] showed higher photosynthesis rates and other parameters. Furthermore, enhancing the GS/GOGAT pathway can improve nitrogen assimilation.
SCIENTIFIC REPORTS
(2021)
Article
Agronomy
Peter T. Pellitier, Robert B. Jackson
Summary: This study provides direct evidence that phosphorus (P) constrains the growth responses of understory plants to elevated CO2 (eCO2), and indirectly highlights the role of microorganisms in plant responses to eCO2.
Article
Plant Sciences
Yuming Sun, Yingrui Li, Yong Li, Min Wang, Luis Alejandro Jose Mur, Qirong Shen, Shiwei Guo
Summary: The study found that feeding cucumber plants with nitrate enhanced resistance to Fusarium infection. This enhanced resistance was associated with increased leaf photorespiration rate, as well as positive correlations with nitrate assimilation and the tricarboxylic acid cycle.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Plant Sciences
Badar Jahan, Noushina Iqbal, Mehar Fatma, Zebus Sehar, Asim Masood, Adriano Sofo, Ilaria D'Ippolito, Nafees A. Khan
Summary: The study showed that ethylene as ethephon is effective in alleviating the damaging effects of salt stress on mustard plants, especially when used in combination with split doses of nitrogen and sulfur treatments. The application of ethylene significantly enhanced photosynthetic efficiency, promoted the assimilation of nitrogen and sulfur, and increased antioxidant activity in the plants.
Article
Agronomy
Xun Li, Jinlong Dong, Nazim Gruda, Wenying Chu, Zengqiang Duan
Summary: Studies show that fluctuations in N and K concentrations in nutrient solutions under eCO(2) can affect the N and K concentrations in plants, and the defect of the closed hydroponic system may exaggerate the negative impact of eCO(2) on N and K in plants.
Article
Horticulture
Lu Wang, Changxia Du, Lele Li, Mengxia Lai, Xingchen Liu, Huaifu Fan, Yuyang Si
Summary: Salinity in soil is not evenly distributed and can affect cucumber growth. Research shows that uneven salinity can alleviate salt stress on cucumber seedlings.
SCIENTIA HORTICULTURAE
(2023)
Article
Horticulture
Xintong Han, Yue Sun, Junqin Chen, Zicong Wang, Hongyan Qi, Yufeng Liu, Yiling Liu
Summary: Since CO2 is crucial for photosynthesis, fluctuating concentrations have a direct impact on plant growth and metabolism. Increasing CO2 concentration has been found to improve photosynthesis, yields, and plant quality. This study used a growth box with two treatments (control and CO2 enrichment) to examine the effects on leaf carbon assimilation, fruit yield, and quality. The results showed that CO2 enrichment significantly increased various parameters related to photosynthesis and enzyme activity, resulting in higher fruit yields and improved quality.
Article
Environmental Sciences
Niannian Yuan, Yujiang Xiong, Yalong Li, Baokun Xu, Fengli Liu
Summary: Controlled pipe drainage significantly reduces the fluctuation of soil water content during the entire growth stage, enhancing soil nitrogen stability and reducing nitrogen loss. The calculation of soil water and nitrogen balance shows an increase in soil water storage and nitrogen mineralization in the effective soil layer under controlled water levels after rainfall.
Article
Agronomy
Zelin Cai, Jiaming Bai, Rui Li, Daiwei He, Rongcheng Du, Dayong Li, Tingting Hong, Zhi Zhang
Summary: The rising CO2 concentration in the atmosphere may affect plants' response to water and nitrogen, and current research is insufficient for managing water and nitrogen under increased CO2. An experiment was conducted to investigate the effects of water-nitrogen coupling on melon production under CO2 enrichment. The results showed that higher irrigation and nitrogen levels increased yield, and enriched CO2 increased yield by 10.3 - 22.9%. Nitrogen also had a significant promoting effect on fruit quality. Based on the evaluation system, intermediate irrigation combined with higher nitrogen input was found to be the best strategy for melon production under CO2 enrichment.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Food Science & Technology
Yawen Zhai, Ilenys M. Perez-Diaz
Summary: The study identified the amount of CO2 and potential microbial contributors leading to bloater defect in cucumber fermentations. It was found that high dissolved CO2 concentrations and the presence of certain bacterial families can contribute to the occurrence of bloater defect.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Ruchi Sharma, Monika Chaudhary, Akansha Pandey, Prakash Biswas, Paritosh Mohanty
Summary: Catalytic conversion of CO2 using nanoporous polytriazine (NENP) shows high conversion rates for epoxide and high selectivity for ethanol and methane, with satisfactory stability and versatility. CO2 utilization as a C2 source is unique, as it is typically used as a C1 source in the formation of methane, methanol, or carbon monoxide in most reported literature.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Plant Sciences
Jiajia Li, Xinyu Liu, Lingqing Xu, Wangsheng Li, Qi Yao, Xilong Yin, Qiuhong Wang, Wenbo Tan, Wang Xing, Dali Liu
Summary: Low nitrogen-tolerant sugar beet reduces energy expenditure by lowering the synthesis of energy-consuming amino acids and promotes glutathione metabolism to protect cells from oxidative damage. The expression levels of nitrogen assimilation and amino acid transport genes play a decisive role in nitrogen utilization and may affect carbon metabolism. There may be corresponding remote regulation between flavonoid biosynthesis in roots and nitrogen metabolism in leaves.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Di Li, Jinlong Dong, Nazim S. Gruda, Xun Li, Zengqiang Duan
Summary: Greenhouse cultivation in winter often leads to low CO2 concentration and root-zone temperature, which are main limiting factors for vegetable growth. Increasing root-zone temperature has a greater impact on cucumber yield and total dry weight compared to elevated CO2. Long-term elevated CO2 can lead to photosynthetic acclimation in cucumber plants.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Xiao-Hua Zhang, Cheng Ma, Lu Zhang, Min Su, Juan Wang, Sheng Zheng, Teng-Guo Zhang
Summary: This study investigates the enhancement of salt tolerance in cucumber by the exogenous strigolactone analog GR24, as well as the role of calcium ion (Ca2+) and hydrogen peroxide (H2O2) in this regulation. The results show that GR24 helps to maintain ion balance, increase antioxidant enzyme activity, reduce lipid peroxidation, and improve osmotic balance and ionic homeostasis in cucumber seedlings under salt stress. The effects of GR24 are dependent on the presence of H2O2 and Ca2+.
JOURNAL OF PLANT PHYSIOLOGY
(2022)
Article
Plant Sciences
Wanli You, Jinglin Zhang, Xueyin Ru, Feng Xu, Zhengguo Wu, Peng Jin, Yonghua Zheng, Shifeng Cao
Summary: This study investigated the effect of calcium chloride (CaCl2) treatment on GABA accumulation in fresh-cut cantaloupe and the underlying mechanisms. The results showed that CaCl2 treatment increased GABA content and the activities of GAD and SSADH enzymes, while reducing glutamate content and GABA-T activity. Additionally, CaCl2 treatment upregulated the expressions of CmCML11 and CmCAMTA5, as well as several GABA shunt genes, through the transcriptional activation by CmCAMTA5. Furthermore, the interaction between CmCML11 and CmCAMTA5 enhanced the transcriptional activation of GABA shunt genes. Overall, this study reveals that CaCl2 treatment promotes GABA accumulation in fresh-cut cantaloupe through the combined effect of CmCML11 and CmCAMTA5 in regulating the expressions of GABA shunt genes.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Min Wang, Yupeng Wang, Xiaohui Wang, Guangwei Wei, Huiyi Yang, Xi Yang, Tinghai Shen, Huijie Qu, Sheng Fang, Ziming Wu
Summary: This study identified the high nitrogen use efficiency (NUE) black sesame variety 17-156 and analyzed its underlying physiological and molecular mechanisms. The results showed that 17-156 possesses a sophisticated nitrogen metabolizing machinery to uptake and assimilate higher quantities of inorganic nitrogen, simultaneously improving carbon metabolism and growth. Many important genes were up-regulated in 17-156 under high nitrogen condition. Additionally, 38 potential candidate genes were identified for future studies to improve sesame's NUE. These findings provide valuable resources for understanding the regulatory network of nitrogen metabolism and developing sesame cultivars with improved NUE.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
He Dong, Chongmei Xu, Chengtao Zhang, Li Zhang, Yaqin Yao, Suiqi Zhang
Summary: The study found that short cells in maize leaves not only improve leaf mechanical support and photosynthetic performance, enhance drought resistance, but also participate in stomatal regulation.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Na Liu, Wenyan Shang, Mengxin Guan, Jibin Xiao, Guangxiang Tian, Baozhan Ma, Wenjing Shang, Xu Li, Shijia Zhao, Chuang Li, Kun Cheng, Wenming Zheng
Summary: This study cloned the full-length cDNA sequence of TaSPX3 gene in wheat and found that TaSPX3 responds to low phosphorus stress in multiple wheat genotypes. Overexpressing TaSPX3 can alleviate phosphorus deficiency symptoms and promote plant growth in Arabidopsis. The study also revealed the interaction of TaSPX3 with other genes related to the phosphorus starvation signaling pathway.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Kongyuan Wu, Lizhen Wang, Zihan Wu, Ziqing Liu, Zengfei Li, Jun Shen, Shengjie Shi, Hong Liu, Christopher Rensing, Renwei Feng
Summary: Selenium (Se) can reduce uptake and translocation of cadmium (Cd) in plants by regulating root morphology. This study investigated the effects of Se(IV) on root exudates, root morphology, root endogenous hormones, and Cd uptake efficiency in rice under Cd stress. The results showed that Se(IV) significantly reduced Cd concentrations in shoots and roots, and decreased Cd uptake efficiency via root hairs. Se(IV) also affected root morphology, root exudates, and the synthesis of hormones like IAA and JA. However, transcriptome analysis revealed no upregulated differentially expressed genes (DEGs) in IAA synthesis.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Di Wang, Huaifang Zhang, Xuefei Hu, Haizhen Zhang, Shuang Feng, Aimin Zhou
Summary: This study identified a cell number regulator gene called SlCNR8 in willow, which enhances resistance to trace metals in transgenic poplar seedlings. SlCNR8 reduces Cd uptake and accumulation, and can be used as a candidate gene for genetic improvement of phytostabilisation of trace metals.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)