Article
Agronomy
Zhou Li, Cheng Huang, Junming Zhao, Guohui Yu, Ting Huang, Yan Peng, Muhammad Jawad Hassan
Summary: This study evaluated the cold tolerance of a new variant, Chuannong-3, under field conditions and investigated the metabolic and molecular mechanisms underlying its cold tolerance compared to triploid Tifdwarf and tetraploid common bermudagrass 001. Chuannong-3 exhibited the highest tolerance to low temperature, with lower oxidative damage, chlorophyll loss, and inhibition of photochemical efficiency, as well as higher water-soluble carbohydrate content. It also showed higher levels of glucose, fructose, sucrose, and raffinose, and greater expression of raffinose synthase and CdSPS1, providing potential protection against chilling and freezing damage. The Chuannong-3 had enhanced ABA-dependent and ABA-independent pathways, indicating its better ability to acclimate to low temperature stress. This new variant could be valuable for turfgrass cultivation in temperate and transition zones.
Article
Plant Sciences
Jahad Soorni, Seyed Kamal Kazemitabar, Danial Kahrizi, Ali Dehestani, Nadali Bagheri, Attila Kiss, Peter Gergo Kovacs, Istvan Papp, Iman Mirmazloum
Summary: In this study, cold-acclimated and non-acclimated Camelina biotypes were compared for stress-associated biomarkers and gene expression. The results showed that cold acclimation had a positive effect on freezing tolerance, increasing the protein and proline content in stressed plants. Freezing stress significantly affected antioxidant enzyme activity and gene expression.
Article
Plant Sciences
Xiaoqin Liao, Xingsu Zhang, Xin Li, Yuchen Tian, Qing Yang, Yongyan Wang, Si Tang, Xuanling Luo, Fan Zhang, Lei Zhang, Beibei Jiang, Qinglin Liu
Summary: This study reports the discovery of a newly identified posttranslational modification called lysine malonylation (Kmal), and its role in the response to abiotic stress in plants. By overexpressing and CRISPR-Cas9-mediated gene editing of DgnsLTP1, a nonspecific lipid transfer protein, it was found to confer cold tolerance in chrysanthemum. Further investigation revealed that DgnsLTP1 interacts with a plasma membrane intrinsic protein (PIP) called DgPIP, and through the regulation of DgGPX expression and activity, it enhances chrysanthemum's low-temperature stress tolerance.
Article
Multidisciplinary Sciences
Shuo Wang, Yixian Zhang, Xiaoxue Ye, Yirong Shen, Hua Liu, Xijuan Zhao, Liangyu Guo, Lu Cao, Yunfei Du, Wenwu Wu
Summary: Based on high-throughput sequencing, this study selected 11 representative angiosperm species and examined their transcriptome changes during cold adaptation. The findings provide valuable insights into the conserved and evolutionary mechanisms of angiosperms in response to cold stress.
Article
Plant Sciences
Yan Yan, Sun Mintao, Ma Si, Feng Qian, Wang Yijia, Di Qinghua, Zhou Mengdi, He Chaoxing, Li Yansu, Gao Lihong, Yu Xianchang
Summary: This study reveals the mechanism of G protein Ga subunit (CsGPA1) in regulating cold tolerance of plants. The results show that CsGPA1 interacts with CsCDL1 and CsCOR413PM2, and positively regulates the expression of brassinolide-related genes. Additionally, CsGPA1 or CsCOR413PM2 inhibition affects Ca (2+) influx at low temperature and subsequently modulates the expression of CsICE-CsCBF.
HORTICULTURE RESEARCH
(2022)
Article
Agronomy
Xiaoguang Lu, Yuhan Wu, Chaoyue Tang, Chang Liu, Ninghui Li, Yuchen Du, Lianshuang Fu, Xin Liu, Jun Liu, Xiaonan Wang
Summary: Recent findings suggest that cold acclimation can enhance cold resistance in wheat. This study elucidated the potential mechanisms of cold acclimation in the winter wheat variety DM1 and the variety CS, focusing on the role of the antioxidant system. The results showed that DM1 exhibited a higher cold tolerance than CS by increasing the expression of POD genes, LEA, CAP, and cold-responsive proteins.
Article
Plant Sciences
Mei Wang, Lepeng Wang, Xiangxue Yu, Jingyi Zhao, Zhijia Tian, Xiaohong Liu, Guoping Wang, Li Zhang, Xinyong Guo
Summary: This study demonstrated that overexpression of cold-regulated plasma membrane protein COR413PM1 from Saussurea involucrata (SikCOR413PM1) enhanced cotton tolerance to cold and drought stresses. SikCOR413PM1 overexpression minimized cell membrane damage, increased plant stability, and modulated the expression of antioxidant enzyme-related genes and stress-related genes in cotton seedlings. Transgenic cotton plants overexpressing SikCOR413PM1 also showed high yields and increased environmental tolerance in field trials.
Article
Biochemistry & Molecular Biology
Zhuoyang Li, Diyi Fu, Xi Wang, Rong Zeng, Xuan Zhang, Jinge Tian, Shuaisong Zhang, Xiaohong Yang, Feng Tian, Jinsheng Lai, Yiting Shi, Shuhua Yang
Summary: This study identifies a negative regulator, bZIP68, that negatively regulates cold tolerance in maize and reveals its differential expression in response to cold stress between maize and its wild ancestor teosinte, which is attributed to natural variation in the bZIP68 promoter.
Review
Biochemistry & Molecular Biology
Arzoo Ahad, Alvina Gul, Tuba Sharf Batool, Noor-ul Noor-ul Huda, Faiza Naseeer, Uzma Abdul Salam, Maria Abdul Salam, Mahnoor Ilyas, Bengu Turkyilmaz Unal, Munir Ozturk
Summary: Environmental variation is a crucial problem that negatively affects food availability and leads to food insecurity. Wheat, being the largest staple food crop, is severely threatened by abiotic stresses such as salinity, heavy metal toxicity, drought, extreme temperatures, and oxidative stresses. Cold stress is a significant ecological constraint that hampers the development and yield of plants. Understanding cold tolerance and improving it in wheat is critical for expanding the adaptability of perennial grasses.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Plant Sciences
Kefyalew Negisho, Surafel Shibru, Andrea Matros, Klaus Pillen, Frank Ordon, Gwendolin Wehner
Summary: This study aimed to explore the associations between different drought indices and quantitative trait loci (QTLs) to improve the drought tolerance of durum wheat in Ethiopia. Through analysis, potential gene loci were discovered that can increase yield and improve drought tolerance.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Genetics & Heredity
Youlian Pan, Yifeng Li, Ziying Liu, Jitao Zou, Qiang Li
Summary: The study utilized integrated computational approaches to analyze transcriptomics and lipidomics data associated with cold acclimation and vernalization in four wheat genotypes, revealing differential expression between cold treated and control samples and between winter-habit and spring-habit wheat genotypes. It identified distinct DEGs and highlighted the pivotal role of winter-habit genes and specific phosphatidylglycerol lipids in conferring cold tolerance through cohesively associated subnetworks.
FRONTIERS IN GENETICS
(2022)
Article
Plant Sciences
Ying Cui, Ying Gao, Ruirui Zhao, Jian Zhao, Yixuan Li, Shuaizheng Qi, Jinfeng Zhang, Lisheng Kong
Summary: This study showed that different temperature treatments can affect the cryotolerance and embryogenicity of conifer somatic embryos. Analysis of gene expression and metabolites revealed the underlying mechanisms of how different temperatures impact the response of somatic embryos. This research provides new insights into the development of methods for germplasm preservation in conifers.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Ke Xu, Yong Zhao, Jia Gu, Meng Zhou, Le Gao, Ruo-Xi Sun, Wei-Wei Wang, Shu-Hua Zhang, Xue-Ju Yang
Summary: This study investigates the molecular basis of cold acclimation and freezing tolerance in wheat using a proteomic analysis. The results reveal differentially accumulated proteins associated with cold acclimation and freezing stress, highlighting the role of protein regulation in enhancing freezing tolerance. Functional analysis shows that cold acclimation influences various biological processes such as signal transduction and carbohydrate metabolism, and promotes stress and defense responses. The study also identifies a specific protein, Wdhn13, that promotes freezing tolerance in wheat and Arabidopsis.
Article
Plant Sciences
Qianqian Guo, Xia Li, Li Niu, Paula E. Jameson, Wenbin Zhou
Summary: The study emphasizes the multifaceted response of plants to drought and cold stress, highlighting physiological and genetic changes that occur during acclimation to these stresses; plants experience a decline in photosynthetic capacity under both drought and cold stress, but can recover from the stress, with internal ABA playing a key role in plant acclimation to cold.
Article
Multidisciplinary Sciences
Guglielmo Puccio, Rosolino Ingraffia, Francesco Mercati, Gaetano Amato, Dario Giambalvo, Federico Martinelli, Francesco Sunseri, Alfonso S. Frenda
Summary: The salinity of soil is an important environmental problem, especially in arid and semiarid areas, and is becoming more relevant due to climate change. This study used RNA-Seq analysis to identify key genes involved in the response to salt stress induced by Arbuscular Mycorrhizal Fungi (AMF) in durum wheat. The findings revealed the enhancement of genes related to plant stress responses and modulation of gene expression involved in various metabolic pathways. The study also found differential expression of transcription factors known to play a key role in plant abiotic stress response. These insights contribute to our understanding of AMF-induced gene expression modulation and the beneficial effects of plant-AMF interaction in wheat under salt stress.
SCIENTIFIC REPORTS
(2023)