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Plant Diseases and Pests 2024年第1期15卷 1-3,6页

作者： Zhenxing WU Jianjian CHEN Tingzhen WANG Guihua LU Institute of Maize and Featured Upland Crops Zhejiang Academy of Agricultural SciencesDongyang 322100China

[Objectives]The paper was to explore the effects of low temperature stress on germination and physiological characteristics of different sweet maize varieties.[Methods]Taking Taitian 264,Zhexuetian 1 and Chaotian 4 as the research objects,the changes in germination potential,germination index,plant height,biomass,and antioxidant enzyme activity of maize seeds were studied under optimal temperature conditions(25℃)and low temperature stress conditions(10℃).[Results]Under 10℃stress,the germination rate and germination index of Taitian 264 were higher than that of Zhexuetian 1 and Chaotian *** low temperature stress,Taitian 264 exhibited the least reduction in height and biomass,while Zhexuetian 1 had the most ***,the SOD and POD activities of Taitian 264 were higher than that of Zhexuetian 1 and Chaotian 4 under both temperature conditions,while the MDA content of Taitian 264 was *** 264 showed strong germination ability against low temperature stress.[Conclusions]This study provides a basis for timely sowing practices of sweet maize in agricultural production.

关键词： Sweet maize low temperature stress Germination Antioxidant enzyme

Advances in Molecular Regulatory Mechanisms of Fruit Trees under low temperature stress

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Plant Diseases and Pests 2024年第3期15卷 46-48页

作者： Huan LIU Lijuan GAO Minghui JI Longfei LI Jintao XU Baofeng HAO Changli Institute of Pomology Hebei Academy of Agriculture and Forestry SciencesChangli 066600China

The most recent research findings on the tolerance of fruit trees to cold stress are reviewed from a molecular perspective,including the perception and transduction of low temperature calcium signaling,CBF-dependent molecular regulatory mechanisms,non-CBF-dependent molecular regulatory mechanisms,and so *** objective is to provide a reference basis for further improving the cold resistance of fruit trees and cultivating new varieties of hardy plants.

关键词： low temperature stress Fruit trees Growth and development Molecular mechanism Research progress

Genome-Wide Exploration of the Grape GLR Gene Family and Differential Responses of VvGLR3.1 and VvGLR3.2 to low temperature and Salt stress

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 533-549页

作者： Honghui Sun Ruichao Liu Yueting Qi Hongsheng Gao Xueting Wang Ning Jiang Xiaotong Guo Hongxia Zhang Chunyan Yu The Engineering Research Institute of Agriculture and Forestry Ludong UniversityYantai264025China College of Agriculture Ludong UniversityYantai264025China

Grapes,one of the oldest tree species globally,are rich in ***,environmental conditions such as low temperature and soil salinization signiﬁcantly affect grape yield and *** glutamate receptor(GLR)family,comprising highly conserved ligand-gated ion channels,regulates plant growth and development in response to *** this study,11 members of the VvGLR gene family in grapes were identiﬁed using whole-genome sequence *** methods were employed to analyze the basic physical and chemical properties,phylogenetic trees,conserved domains,motifs,expression patterns,and evolutionary *** and collinear analyses revealed that the VvGLRs were divided into three subgroups,showing the high conservation of the grape GLR *** members exhibited 2 glutamate receptor binding regions(GABAb and GluR)and 3-4 transmembrane regions(M1,M2,M3,and M4).Real-time quantitative PCR analysis demonstrated the sensitivity of all VvGLRs to low temperature and salt *** localization studies in Nicotiana tabacum veriﬁed that VvGLR3.1 and VvGLR3.2 proteins were located on the cell membrane and cell ***,yeast transformation experiments conﬁrmed the functionality of VvGLR3.1 and VvGLR3.2 in response to low temperature and salt ***ﬁndings highlight the signiﬁcant role of the GLR family,a highly conserved group of ion channels,in enhancing grape stress *** study offers new insights into the grape GLR gene family,providing fundamental knowledge for further functional analysis and breeding of stress-resistant grapevines.

关键词： Genome-wide identiﬁcation glutamate receptor(GLR)family low temperature stress salt stress grape

De Novo Transcriptome Analysis in Hevea brasiliensis to Unveil Genes Involved in low temperature stress Response

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Phyton-International Journal of Experimental Botany 2023年第2期92卷 559-575页

作者： Bingsong Yang Xiaomeng Shi Tingting Guo Meixia Liang College of Agriculture Ludong UniversityYantai264025China The Engineering Research Institute of Agriculture and Forestry Ludong UniversityYantai264025China

low temperature is one of the adversities threatening the growth and development and reduces the yield of rubber ***,molecular mechanisms toward rubber trees in response to low temperature are largely *** this study,7,159 and 7,600 differentially expressed genes(DEGs)were identified in‘Reyan 73397’rubber *** GO analysis,the catalytic activity was the representative of the GO term in the only DEGs at the two studied temperatures(room temperature and 4°C,respectively),while KEGG analysis showed that carbon metabolism was the most important grouping under the comparison of these two *** addition,expression of 9 members of transcription factor MYB family genes were further verified by qRT-PCR,and MYB family genes may play important roles in the regulation of rubber trees under low temperature *** study provided a theoretical foundation for(1)revealing the molecular mechanisms of rubber trees in response to low temperature and(2)breeding of tolerant varieties of rubber trees.

关键词： Hevea brasiliensis low temperature stress transcriptome differential expressed genes

Gene Expression and Activities of SOD in Cucumber Seedlings Were Related with Concentrations of Mn^(2+),Cu^(2+),or Zn^(2+) Under low temperature stress

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Agricultural Sciences in China 2009年第6期8卷 678-684页

作者： GAO Jun-jie LI Tao YU Xian-chang The lnsititute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China College of Horticulture Science and Engineering State Key Laboratory of Crop Biology Shandong Agricultural University Tai＇an 271018 P.R. China Municipal Bureau of Agriculture Tai＇an 271000P.R.China Yantai Academy of Agricultural Sciences Yantai 265500 P.R.China

Effects of increasing Mn^2＋, Cu^2＋, or Zn^2＋ on SOD expressions were studied in cucumber seedlings under low temperature stress. Both gene expressions and activities of Cu/Zn-SOD and Mn-SOD in cucumber seedling leaves were induced by increasing Mn^2＋, Cu^2＋, or Zn^2＋ under low temperature stress, especially 48 h afterwards. The activities of Cu/Zn-SOD and Mn-SOD at 0 and 48 h after treatment were in accordance with their gene expression levels, which implied that the transcriptional regulation plays key roles in regulating their activities at the early stage of low temperature stress. Gene expressions of Cu/Zn-SOD and Mn-SOD declined at 96 h, but Cu/Zn-SOD and Mn-SOD activities still remain high, which suggested that Cu/Zn-SOD and Mn-SOD activities might be regulated by other factors after transcription at the later stage of low temperature stress. Therefore, we concluded that the increasing Mn^2＋, Cu^2＋, or Zn^2＋ could increase the capacity of scavenging ROS in cucumber seedlings under low temperature stress by inducing gene expressions of Cu/ Zn-SOD and Mn-SOD, elevating activities of Cu/Zn-SOD, Mn-SOD, or regulating other factors after transcription.

关键词： real-time quantitative PCR cucumber seedlings SOD low temperature stress manganese copper zinc

Analysis of microRNA Expression Characteristics Related to low temperature stress in Chewing Cane

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Asian Agricultural Research 2023年第8期15卷 52-54,66页

作者： Minghui CHEN Shiping CHENG Jiansheng WANG Junqing WANG Pingdingshan University Henan Province Key Laboratory of Germplasm Innovation and Utilization of Eco-economic Wood PlantPingdingshang 467000China Guangxi Key Laboratory of Sugarcane Genetic Improvement Nanning 530000China

[Objectives]To explore microRNA expression characteristics related to low temperature stress in chewing cane.[Methods]The research on miRNA under abiotic stress of sugarcane at home and abroad mainly focused on the types and regulation of miRNA under cold,heat,drought,high salt,and mechanical ***,there are few studies on miRNA under low temperature stress in chewing *** target genes of miR394 and miR825 in chewing cane were predicted and functionally analyzed by bioinformatics technology.[Results]The results showed that the target genes of miR394 and miR825 were mainly members of the WRKY transcription factor family,involved in plant growth,development and stress ***-time fluorescence quantitative PCR analyzed the expression characteristics of target miRNA in different tissues of chewing cane at different periods of low temperature stress.[Conclusions]The results showed that the expression of chewing cane miR394 and miR408 had temporal and spatial specificity and tissue specificity,both of which could respond to low temperature stress with significant differential expression.

关键词： Chewing cane low temperature stress microRNA Target gene

Evaluation of Rice Seedling Tolerance to Constant and Intermittent low temperature stress

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Rice science 2012年第4期19卷 295-308页

作者： Sang-Ic KIM Dong-min KIM Thomas H.TAI USDA-ARS Crops Pathology and Genetics Research Unit Department of Plant Sciences-Mail Stop 1University of CaliforniaDavisCA 95616USA Department of Agronomy Chungnam National UniversityDaejeon 305-764Republic of Korea

M202, IR50 and advanced backcross （BC4F6） lines carrying the cold tolerance QTLs qCTS4 and qCTS12 were evaluated using three low temperature stress assays （constant, intermittent and constant with recovery period）. Under constant stress, two BC4F6 lines （MIb 4853-9 and MIb 6885-2） exhibited differences in seedling growth and accumulation of stress-related compounds although both carry the two QTLs in the IRS0 background. Differences between these lines were also observed in the constant with recovery period assay, although both of them performed comparably under intermittent stress, MIb 6885-2 performed more similarly to M202 in the constant and constant with recovery period assays, suggesting that this line contains an introgressed region（s） not present in MIb 4853-9. The three assays were also applied to assess variations in cold tolerance in a set of diverse germplasms. Performance metrics and visual ratings were comparable for evaluating tolerance to constant stress. However, differences in response to intermittent stress were more evident from growth and total chlorophyll measurements than from visual ratings. With regard to the constant with recovery period assay, about 15% of the germplasm accessions did not recover. However, some lines which exhibited chilling injuries of comparable severity were able to overcome them. This recovery phenotype may improve rice performance in the field and warrant further investigation.

关键词： rice seedling cold tolerance quantitative trait locus advanced backcross line low temperature stress

Physiological Response and Transcriptome Analysis of Cotton Leaves under low temperature stress at the Two-leaf Stage

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Asian Agricultural Research 2021年第3期13卷 40-47页

作者： Xiaoman WANG Jianbing ZENG Qiongshan WANG Songbo XIA Xiaogang WANG Jiaohai ZHANG Youchang ZHANG Shu BIE Institute of Cash Crops Hubei Academy of Agricultural SciencesWuhan 430064China Key Laboratory of Cotton Biology and Breeding in the Middle Reaches of the Yangtze River Wuhan 430064China Hubei Agricultural Science and Technology Innovation Center Wuhan 430064China Agricultural and Rural Bureau of Macheng City Hubei ProvinceMacheng 438300China

[Objectives]To investigate the effect of low temperature treatment on cotton leaves at the two-leaf stage.[Methods]Two cotton varieties(CN01 and SJB016(low temperature-tolerant))were used as the trial *** were treated at 25(CK)and 12℃(low temperature)for 0,3,6,12,24,48 and 72 h,***,the changes in the contents of MDA,SS and Pro in the cotton leaves were *** on the analysis results,RNA-seq verification was performed.[Results]Two cotton varieties(CN01 and SJB016(low temperature-tolerant))were used as the trial *** were treated at 25(CK)and 12℃(low temperature)for 0,3,6,12,24,48 and 72 h,***,the changes in the contents of MDA,SS and Pro in the cotton leaves were *** on the analysis results,RNA-seq verification was performed.[Conclusions]These genes may play an important role in improving the cold resistance of cotton.

关键词： Cotton leaf Physiological response Transcriptome Gene expression low temperature stress

Effects of Phosphate Fertilizer on Cold Tolerance and Its Related Physiological Parameters in Rice Under low temperature stress

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Journal of Northeast Agricultural University(English Edition) 2012年第4期19卷 1-10页

作者： Hou Li-gang Chen Wen-fu Zhao Guo-chen Ma Wei Qi Chun-yan Liu Liang Sun Hong-jiao Rice Research Institute Shenyang Agricultural University Rice Research Institute Jilin Academy of Agricultural Sciences

The study was designated to explore the physiological mechanism of cold tolerance enhanced by phosphate in rice. An experiment was conducted to investigate the effects of different levels of phosphate fertilizer on cold tolerance and its related physiological parameters in rice seedings （chilling-sensitive cv. Changbai 9 and chilling-tolerant cv. Jijing 81） under low temperature stress. At the same time, the identification of cold tolerance was conducted. Compared with the normal temperature treatment, the relative chlorophyll content, photosynthesis rate, Fv/Fm and qP decreased and index of unsaturated fatty acid increased in rice under low temperature stress. The effect of chilling-sensitive cultivars was more than that of chilling-tolerant cultivars, more phosphorus fertilizer properly improved seedling quality of rice, slowed relative chlorophyll content dropping degree of rice seeding, increased photosynthesis rate, Fv/Fm, qP and index of unsaturated fatty acids, and enhanced the ability to chilling-tolerant cultivars under low temperature. The effect on chilling-tolerant cultivars was significantly higher than that on chilling sensitive cultivars by applying more phosphorus fertilizer. Phosphate regulated photosynthetic physiology and membrane fluidity to reduce injury by low temperature, and increasd the cold tolerance capacity of rice.

关键词： low temperature stress phosphate fertilizer rice cold tolerance physiological parameter

Proteomic Alterations of Antarctic Ice Microalga Chlamydomonas *** low-temperature stress

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Journal of Integrative Plant Biology 2006年第8期48卷 965-970页

作者： Guang-Feng Kan Jin-Lai Miao Cui-Juan Shi Guang-You Li School of the Ocean Harbin Institute of Technology in Weihai Weihai 264209 China Key Laboratory of Marine Bio-active Substances State Oceanic Administration Qingdao 266061 China

Antarctic ice microalga can survive and thrive in cold channels or pores in the Antarctic ice layer. In order to understand the adaptive mechanisms to low temperature, in the present study we compared two-dimensional polyacrylamide gel electrophoresis （2-DE） profiles of normal and low temperature-stressed Antarctic ice microalga Chlamydomonas sp. cells. In addition, new protein spots induced by low temperature were identified with peptide mass fingerprinting based on matrix-assisted laser desorption/ionization time-of-flight mass spectrometry （MALDI-TOF-MS） and database searching. Well-resolved and reproducible 2-DE patterns of both normal and low temperature-stressed cells were acquired. A total of 626 spots was detected in control cells and 652 spots were detected in the corresponding low temperature-stressed cells. A total of 598 spots was matched between normal and stressed cells. Two newly synthesized proteins （a and b） in low temperature-stressed cells were characterized. Protein spot A （53 kDa, pl 6.0） was similar to isopropylmalate/homocitrate/citramalate synthases, which act in the transport and metabolism of amino acids. Protein spot b （25 kDa, pl 8.0） was related to glutathione S-transferase, which functions as a scavenger of active oxygen, free radicals, and noxious metabolites. The present study is valuable for the application of ice microalgae, establishing an ice microalga Chlamydomonas sp. proteome database, and screening molecular biomarkers for further studies.

关键词： Antarctic ice microalga Chlamydomonas sp two-dimensional polyacrylamide gel electrophoresis differentialexpression protein low temperature stress matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS).