Article
Biochemistry & Molecular Biology
Xiaoting Zhou, Jia Huang, Yirong Gan, Zelin Li, Lihong Su, Zhongqun He, Junwei Yang, Zhihui Wang, Chengyao Jiang, Zhi Huang, Wei Lu, Wangang Zheng
Summary: In recent times, excessive nitrate accumulation has led to secondary salinization of greenhouse soils. A low red to far-red (R:FR) light ratio can enhance tomato plant salinity tolerance, but its molecular mechanism is unclear. Transcriptome analysis of tomato seedlings exposed to calcium nitrate stress under low R:FR ratio or normal light conditions revealed that a low R:FR ratio promotes antioxidant defense and proline accumulation, improving plant adaptability. Differentially expressed genes associated with hormone signal transduction, amino acid biosynthesis, sulfide metabolism, and oxidoreductase activity were identified. Novel hub genes encoding proteins like FBNs, SULTRs, and GATA-like transcription factors were also discovered, highlighting their role in low R:FR light-induced salt responses. These findings provide new insights into the mechanisms and environmental implications of low R:FR ratio light-modulated tomato saline tolerance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
X. T. Zhou, Z. L. Li, J. J. He, X. Y. Wang, Q. L. Liu, J. Huang, Y. D. Xie, Z. Q. He
Summary: The study demonstrated that treatment with low R:FR ratios can enhance the growth and photosynthesis of tomato seedlings under secondary soil salinization, thereby improving their salt resistance. The most effective treatment was found at an R:FR ratio of 0.7, which significantly increased proline content, photosynthetic efficiency, and gene expression related to photosynthesis.
Article
Plant Sciences
Monica De Palma, Teresa Docimo, Gianpiero Guida, Maria Salzano, Rossella Albrizio, Pasquale Giorio, Michelina Ruocco, Marina Tucci
Summary: Trichoderma spp. can enhance plant performance under water stress by modulating transcription factors and genes related to photosynthesis, antioxidant defences, and maintenance of a juvenile state. The fungi specifically affected genes involved in stress damage mitigation, helping plants recover growth and photosynthesis levels after stress.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Chemistry, Multidisciplinary
Ran Tao, Yinlong Zhang, Jing Yang, Tianxi Yang, Jason C. White, Yu Shen
Summary: With the projected increase in global population, there is a need to produce more food to meet the growing demand. However, the current agricultural production system cannot meet this challenge, and crop cultivation will have to take place in more marginal conditions. Soil salinization and salt stress on crops will become increasingly problematic. In this study, researchers investigated the use of biochar nanoparticles derived from rice and corn straw as a soil amendment to alleviate salt stress on tomato seedlings. The findings suggest that straw-derived biochar may be effective in increasing the salt stress tolerance of crop species and can be used to facilitate food production under marginal soil conditions.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Agronomy
Wenqian Zhang, Jiahua Wei, Lili Guo, Heng Fang, Xiaojuan Liu, Kehao Liang, Wenquan Niu, Fulai Liu, Kadambot H. M. Siddique
Summary: This study investigates the effects of two types of biochar (wood biochar and poultry biochar) on the growth and physiology of tomato seedlings under drought and salinity stress. The results show that biochar addition effectively improves the root water potential and osmotic potential of tomato plants, and significantly improves the leaf relative water content. Furthermore, biochar application reduces the concentration of abscisic acid in xylem sap under drought and salinity stress.
Article
Plant Sciences
Maarten L. J. Wassenaar, Wim van Ieperen, Steven M. Driever
Summary: The application of LED technology in agriculture has provided new opportunities for optimizing light spectrum. Far-red light has been found to enhance leaf photosynthesis, but it also induces shade-avoidance response, which affects leaf nitrogen content, thickness, and mass, and may also alter CO2 diffusion resistance. The effects of far-red light vary with different light intensities.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Nana Qi, Ni Wang, Xuemei Hou, Yihua Li, Weibiao Liao
Summary: This study demonstrates the positive roles of nitric oxide (NO) and calcium ion (Ca2+) in promoting tomato seedlings' growth under salt stress. NO and Ca2+ decrease reactive oxygen accumulation, increase the activity of antioxidant enzymes, and upregulate antioxidant enzyme-related genes, thereby alleviating the negative effects of salt stress on plants. Ca2+/CaM may play an important role in the process of NO-alleviated salt stress.
Article
Green & Sustainable Science & Technology
Ertan Yildirim, Melek Ekinci, Metin Turan, Selda Ors, Atilla Dursun
Summary: Salinity causes significant yield and quality losses in agricultural production, leading to major economic losses worldwide. Hydrogen sulfide (H2S) plays a crucial role in alleviating physiological and metabolic processes in plants, increasing tolerance to abiotic stress conditions. A study examined the effects of H2S treatments on tomato seedlings to mitigate the harmful effects of salt stress. The results showed that H2S treatment increased stress tolerance in tomato seedlings by regulating mineral element and hormone content, as well as enhancing photosynthetic activity.
Article
Horticulture
Chenxu Niu, Ge Wang, Jing Sui, Genzhong Liu, Fangfang Ma, Zhilong Bao
Summary: The foliar application of biostimulants can promote plant growth under temperature stress, with Boosten showing greater effectiveness.
SCIENTIA HORTICULTURAE
(2022)
Article
Horticulture
Yan Li, Zhongliang Liu, Qinghua Shi, Fengjuan Yang, Min Wei
Summary: The research found that biomass accumulation and CO2 assimilation were significantly increased in tomato seedlings under blue light and especially under mixed red and blue light. Additionally, leaf thickness, stomatal conductance, pigment levels, photosynthetic electron transport capacity, and photosynthetic rate were all enhanced under these light conditions. The up-regulation of enzyme expression and activity related to the Calvin cycle was observed, along with changes in gibberellin concentration and auxin levels in stem and root tissues.
SCIENTIA HORTICULTURAE
(2021)
Article
Plant Sciences
Yong He, Jiaxiang Zhou, Yanfei Hu, Chunying Fang, Youjian Yu, Jing Yang, Biao Zhu, Yong-Ling Ruan, Zhujun Zhu
Summary: The study demonstrates that miR398 plays a role in plant growth and antioxidant system under salt stress by affecting the expression of CSD, APX, and CAT, resulting in reduced salt tolerance and increased oxidative damage.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Yanxiu Miao, Xingxing Gao, Bin Li, Wenjiao Wang, Longqiang Bai
Summary: Soil salinity inhibits leaf photosynthesis and agricultural production. The red to far-red light ratio (R/FR) affects leaf photosynthesis under salt stress, but the regulation mechanism is unknown. This study investigated the effects of different R/FR on plant growth, gas exchange parameters, photosynthetic electron transport, Calvin cycle, and gene expression under salt stress. Low R/FR effectively alleviated the negative effects of salt stress on leaf photosynthesis by promoting photosynthetic electron transport and Calvin cycle in cucumber plants.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Jiecai Liu, Jiaxing Li, Xiaojing Li, Yang Song, Zhiwei Zhang, Jing Sun, Xiaohua Sun
Summary: The application of melatonin has been found to improve salt tolerance and reduce oxidative damage in melon seedlings. Transcriptome analysis revealed that melatonin promotes pathways related to photosynthesis, signal transduction, and hormone synthesis. Moreover, various transcription factor families were found to be involved in the response processes. In conclusion, melatonin application effectively enhances photosynthetic efficiency and stimulates seedling growth under high salinity.
Article
Horticulture
Xuefang Lu, Xiaojun Liu, Junrong Xu, Yunzhi Liu, Yuzhen Chi, Wenjin Yu, Changxia Li
Summary: Strigolactones (SLs), a newly discovered plant hormone, can modulate physiological and biochemical processes and plant stress responses. Synthetic analog GR24 improves the growth of tomato seedlings under salt stress, while synthesis inhibitor TIS108 reverses this effect, indicating that SLs effectively enhance salt-stress resistance in tomato. Mechanistically, GR24 increases endogenous Trehalose (Tre) levels and activates Tre biosynthesis-related genes and enzymes, resulting in weakened salt toxicity; whereas, TIS108 inhibits GR24's effects on Tre metabolism.
Article
Plant Sciences
Feiyu Yan, Jingyu Zhang, Weiwei Li, Yanfeng Ding, Qiuyi Zhong, Xia Xu, Haimin Wei, Ganghua Li
Summary: The study demonstrated that melatonin (MT) can enhance photosynthesis in rice under salt stress conditions by increasing relative water content, sucrose and starch content, and enhancing net photosynthetic rate. This enhancement is mainly attributed to the regulation of maintaining low ROS status, promoting the xanthophyll cycle, and increasing the activities of key photosynthetic enzymes by MT. These findings provide a mechanistic insight into how MT improves the photosynthetic capacity of rice under salt stress.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
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)