Chilling, Freezing, and High Temperature Stresses

1980 ◽  
Keyword(s):  
High Temperature ◽  
Temperature Stresses

Characteristics of Photosynthesis in Different Wheat Cultivars under High Light Intensity and High Temperature Stresses

2009 ◽  
Vol 34 (12) ◽  
pp. 2196-2201 ◽  
Author(s):  
Xue-Li QI ◽  
Lin HU ◽  
Hai-Bin DONG ◽  
Lei ZHANG ◽  
Gen-Song WANG ◽  
...  
Keyword(s):  
High Temperature ◽  
Light Intensity ◽  
High Light Intensity ◽  
High Light ◽  
Wheat Cultivars ◽  
Temperature Stresses

scholarly journals Small RNA-mediated responses to low- and high-temperature stresses in cotton

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Qiongshan Wang ◽  
Nian Liu ◽  
Xiyan Yang ◽  
Lili Tu ◽  
Xianlong Zhang
Keyword(s):  
High Temperature ◽  
Small Rna ◽  
Temperature Stresses

scholarly journals Untangling irrigation effects on maize water and heat stress alleviation using satellite data

2021 ◽  
Author(s):  
Peng Zhu ◽  
Jennifer Burney
Keyword(s):  
Heat Stress ◽  
High Temperature ◽  
Surface Temperature ◽  
Temperature Stress ◽  
Land Surface ◽  
Grain Filling ◽  
High Temperature Stress ◽  
Temperature Stresses ◽  
Stress Alleviation ◽  
Irrigation Effects

Abstract. Irrigation has important implications for sustaining global food production, enabling crop water demand to be met even under dry conditions. Added water also cools crop plants through transpiration; irrigation might thus play an important role in a warmer climate by simultaneously moderating water and high temperature stresses. Here we use satellite-derived evapotranspiration estimates, land surface temperature (LST) measurements, and crop phenological stage information from Nebraska maize to quantify how irrigation relieves both water and temperature stresses. Our study shows that, unlike air temperature metrics, satellite-derived LST detects significant irrigation-induced cooling effect, especially during the grain filling period (GFP) of crop growth. This cooling is likely to extend the maize growing season, especially for GFP, likely due to the stronger temperature sensitivity of phenological development during this stage. The analysis also suggests that irrigation not only reduces water and temperature stress but also weakens the response of yield to these stresses. Specifically, temperature stress is significantly weakened for reproductive processes in irrigated crops. The attribution analysis further suggests that water and high temperature stress alleviation contributes to 65 % and 35 % of yield benefit, respectively. Our study underlines the relative importance of high temperature stress alleviation in yield improvement and the necessity of simulating crop surface temperature to better quantify heat stress effects in crop yield models. Finally, untangling irrigation effects on both heat and water stress mitigation has important implications for designing agricultural adaptation strategies under climate change.

Validamycin A enhances the interaction between neutral trehalase and 14‑3‑3 protein Bmh1 in Fusarium graminearum

2021 ◽  
Author(s):  
Li Ren ◽  
Yi-Ping Hou ◽  
Yuanye Zhu ◽  
Fei-Fei Zhao ◽  
Yabing Duan ◽  
...  
Keyword(s):  
High Temperature ◽  
Fusarium Graminearum ◽  
Protein Localization ◽  
Enzyme Activation ◽  
Hog Pathway ◽  
Temperature Stresses ◽  
Validamycin A ◽  
Cellular Processes ◽  
External Stresses ◽  
External Stimuli

Trehalase is considered the main target of the biological fungicide validamycin A, and toxicology mechanism of validamycin A is unknown. 14-3-3 proteins, highly conserved proteins, participate in diverse cellular processes, including enzyme activation, protein localization and molecular chaperone. In Saccharomyces cerevisiae, the 14-3-3 protein Bmh1could interact with Nth1 to respond specific external stimuli. Here, we characterized FgNth, FgBmh1, and FgBmh2 in Fusarium graminearum. ΔFgNth, ΔFgBmh1, and ΔFgBmh2 displayed great growth defects when compared to wild-type PH-1. When exposed to validamycin A, high osmotic and high temperature stresses, ΔFgNth, ΔFgBmh1, and ΔFgBmh2 showed more tolerance than WT. Both ΔFgNth and ΔFgBmh1 displayed reduced deoxynivalenol (DON) production but opposite for ΔFgBmh2, and all three deletion mutants showed reduced virulence on wheat coleoptiles. In addition, Co-immunoprecipitation (Co-IP) experiments suggested that FgBmh1 and FgBmh2 both interact with FgNth, but no interaction was detected between FgBmh1 and FgBmh2 in our experiments. Further, validamycin A enhances the interaction between FgBmh1 and FgNth in a positive correlation under concentrations of 1-100μg/mL. Besides, both high osmotic and high temperature stresses promote the interaction between FgBmh1 and FgNth. Co-IP assay also showed that neither FgBmh1 nor FgBmh2 could interact with FgPbs2, a MAPKK kinase in the high-osmolarity glycerol (HOG) pathway. However, FgBmh2 but not FgBmh1 binds to the heat shock protein FgHsp70 in F. graminearum. Taken together, our results demonstrate that FgNth and FgBmhs are involved in growth, responces to external stresses and virulence, and validamycin A enhanced the interaction between FgNth and FgBmh1in F. graminearum.

scholarly journals Comparative analysis of the Spirulina platensis subcellular proteome in response to low- and high-temperature stresses: uncovering cross-talk of signaling components

2011 ◽  
Vol 9 (1) ◽  
pp. 39 ◽  
Author(s):  
Pavinee Kurdrid ◽  
Jittisak Senachak ◽  
Matura Sirijuntarut ◽  
Rayakorn Yutthanasirikul ◽  
Phuttawadee Phuengcharoen ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
High Temperature ◽  
Cross Talk ◽  
Spirulina Platensis ◽  
Temperature Stresses ◽  
Signaling Components

scholarly journals Transcriptomic and metabolomic profiling of Camellia sinensis L. cv. ‘Suchazao’ exposed to temperature stresses reveals modification in protein synthesis and photosynthetic and anthocyanin biosynthetic pathways

2019 ◽  
Vol 39 (9) ◽  
pp. 1583-1599 ◽  
Author(s):  
Jiazhi Shen ◽  
Dayan Zhang ◽  
Lin Zhou ◽  
Xuzhou Zhang ◽  
Jieren Liao ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Temperature ◽  
Low Temperature ◽  
Temperature Stress ◽  
High Temperature Stress ◽  
Low Temperature Stress ◽  
Late Embryogenesis Abundant Protein ◽  
Anthocyanin Synthesis ◽  
Temperature Stresses ◽  
Tea Plants

Abstract To determine the mechanisms in tea plants responding to temperature stresses (heat and cold), we examined the global transcriptomic and metabolomic profiles of the tea plant cultivar ‘Suchazao’ under moderately low temperature stress (ML), severely low temperature stress (SL), moderately high temperature stress (MH) and severely high temperature stress (SH) using RNA-seq and high performance liquid chromatography tandem mass spectrometry/mass spectrometry (HPLC-MS/MS), respectively. The identified differentially expressed genes indicated that the synthesis of stress-resistance protein might be redirected to cope with the temperature stresses. We found that heat shock protein genes Hsp90 and Hsp70 played more critical roles in tea plants in adapting to thermal stress than cold, while late embryogenesis abundant protein genes (LEA) played a greater role under cold than heat stress, more types of zinc finger genes were induced under cold stress as well. In addition, energy metabolisms were inhibited by SH, SL and ML. Furthermore, the mechanisms of anthocyanin synthesis were different under the cold and heat stresses. Indeed, the CsUGT75C1 gene, encoding UDP-glucose:anthocyanin 5-O-glucosyl transferase, was up-regulated in the SL-treated leaves but down-regulated in SH. Metabolomics analysis also showed that anthocyanin monomer levels increased under SL. These results indicate that the tea plants share certain foundational mechanisms to adjust to both cold and heat stresses. They also developed some specific mechanisms for surviving the cold or heat stresses. Our study provides effective information about the different mechanisms tea plants employ in surviving cold and heat stresses, as well as the different mechanisms of anthocyanin synthesis, which could speed up the genetic breeding of heat- and cold-tolerant tea varieties.

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