Melatonin improves heat tolerance in Actinidia deliciosa via carotenoid biosynthesis and heat shock proteins expression

2021 ◽  
Author(s):  
Hui Xia ◽  
Yuanjie Zhou ◽  
Honghong Deng ◽  
Lijin Lin ◽  
Qunxian Deng ◽  
...  
Keyword(s):  
Heat Shock ◽  
Heat Shock Proteins ◽  
Heat Tolerance ◽  
Carotenoid Biosynthesis ◽  
Actinidia Deliciosa ◽  
Shock Proteins

scholarly journals Transcriptional regulation of heat shock proteins and ascorbate peroxidase by CtHsfA2b from African bermudagrass conferring heat tolerance in Arabidopsis

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Xiuyun Wang ◽  
Wanlu Huang ◽  
Zhimin Yang ◽  
Jun Liu ◽  
Bingru Huang
Keyword(s):  
Transcriptional Regulation ◽  
Heat Shock ◽  
Heat Shock Proteins ◽  
Ascorbate Peroxidase ◽  
Heat Tolerance ◽  
Shock Proteins

The Heat-Shock Response and Expression of Heat-Shock Proteins in Wheat Under Diurnal Heat Stress and Field Conditions

1994 ◽  
Vol 21 (6) ◽  
pp. 857 ◽  
Author(s):  
HT Nguyen ◽  
CP Joshi ◽  
N Klueva ◽  
J Weng ◽  
KL Hendershot ◽  
...  
Keyword(s):  
Heat Stress ◽  
Heat Shock ◽  
Heat Shock Proteins ◽  
Heat Tolerance ◽  
Heat Shock Response ◽  
Field Conditions ◽  
Shock Response ◽  
Heat Tolerant ◽  
Shock Proteins

The occurrence of heat-shock proteins (HSPs) in response to high temperature stress is a universal phenomenon in higher plants and has been well documented. However, in agriculturally important species, less is known about the expression of HSPs under natural environments. A review of the heat-shock response in wheat (Triticum aestivum L.) is presented and recent results on the expression of wheat HSPs under diurnal stress and field conditions are reported. In the field experiment, flag leaf blade temperatures were obtained and leaf blades collected for northern blot analysis using HSP 16.9 cDNA as a probe. Temperatures of leaf blades ranged from 32 to 35�C under the tested field conditions at New Deal near Lubbock, Texas. Messenger RNAs encoding a major class of low molecular weight HSPs, HSP 16.9, were detected in all wheat genotypes examined. The results suggested that HSPs are synthesised in response to heat stress under agricultural production, and furthermore, that HSPs are produced in wheats differing in geographic background. In the controlled growth chamber experiment, HSP expression in two wheat cultivars, Mustang (heat tolerant) and Sturdy (heat susceptible) were analysed to determine if wheat genotypes differing in heat tolerance differ in in vitro HSP synthesis (translatable HSP mRNAs) under a chronic, diurnal heat-stress regime. Leaf tissues were collected from seedlings over a time-course and poly (A)+RNAs were isolated for in vitro translation and 2-D gel electrophoresis. The protein profiles shown in the 2-D gel analysis revealed that there were not only quantitative differences of individual HSPs between these two wheat lines, but also some unique HSPs which were only found in the heat tolerant line. This data provides evidence of a correlation between HSP synthesis and heat tolerance in wheat under a simulated field environment and suggests that further genetic analysis of HSPs in a segregating population is worthy of investigation. In conclusion, the results of this study provide an impetus for the investigation of the roles of HSP genes in heat tolerance in wheat.

scholarly journals Small heat-shock proteins and leaf cooling capacity account for the unusual heat tolerance of the central spike leaves inAgave tequilanavar. Weber

2009 ◽  
Vol 32 (12) ◽  
pp. 1791-1803 ◽  
Author(s):  
ROSARIO LUJÁN ◽  
FERNANDO LLEDÍAS ◽  
LUZ MARÍA MARTÍNEZ ◽  
RITA BARRETO ◽  
GLADYS I. CASSAB ◽  
...  
Keyword(s):  
Heat Shock ◽  
Heat Shock Proteins ◽  
Heat Tolerance ◽  
Cooling Capacity ◽  
Small Heat Shock Proteins ◽  
Shock Proteins

scholarly journals INFLUENCE OF HIGH TEMPERATURES ON HEAT TOLERANCE AND SYNTHESIS OF HEAT SHOCK PROTEINS IN SPRING WHEAT AT THE INITIAL STAGES OF DEVELOPMENT

2020 ◽  
Vol 12 (5) ◽  
pp. 179
Author(s):  
Olga Andreevna Fedotova ◽  
Elizaveta Alekseevna Polyakova ◽  
Olga Ivanovna Grabelnykh
Keyword(s):  
Triticum Aestivum ◽  
Heat Shock ◽  
Heat Shock Proteins ◽  
High Temperatures ◽  
Heat Tolerance ◽  
Spring Wheat ◽  
Triticum Aestivum L ◽  
Stages Of Development ◽  
Shock Proteins

Пшеница одна из сельскохозяйственных культур, которая подвергается действию температурного стресса в течение онтогенеза и особенно чувствительна к действию стресса на начальных стадиях её развития. Высокие температуры ограничивают рост, развитие и продуктивность растений. Однако, растения могут адаптироваться к температурному стрессу и имеют адаптивные механизмы на клеточном и молекулярном уровнях. Одним из таких адаптивных механизмов является увеличение синтеза белков теплового шока (БТШ), функции которых очень важны и разнообразны.Целью данной работы было изучить влияние различных тепловых обработок (37 и 39 ºC в течение 1, 3, 6, 24 ч и 50 ºC в течение 1, 3, 5 ч) на теплоустойчивость проростков яровой пшеницы (Triticum aestivum L.) и синтез БТШ (101, 70, 60 и 16.9 кДа) в побегах 4-х суточных и листьях 8-ми суточных проростков.На основании полученных данных сделан вывод, что 4-х суточные и 8-ми суточные проростки яровой пшеницы характеризуются схожей реакцией на тепловой стресс при 50 ºC, однако 4-х суточные проростки более устойчивы в начальный период стрессового воздействия. Воздействие температурами 37 и 39 ºC подходят для адаптации яровой пшеницы на начальных стадиях её развития (4-х суточные и 8-ми суточные проростки). Эти температуры приводят к схожей тенденции в синтезе БТШ в побегах и листьях. В тоже время, содержание БТШ16.9 зависит от стадии развития пшеницы. В нормальных условиях был отмечен синтез БТШ16.9 в побегах, но не в листьях. Сделано заключение, что адаптация 8-ми суточных проростков более длительный процесс (6-24 ч воздействия 37 и 39 ºC) по сравнению с 4-х суточными проростками (3-6 ч воздействия 37 и 39 ºC).

scholarly journals The genome of a subterrestrial nematode reveals adaptations to heat

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Deborah J. Weinstein ◽  
Sarah E. Allen ◽  
Maggie C. Y. Lau ◽  
Mariana Erasmus ◽  
Kathryn C. Asalone ◽  
...  
Keyword(s):  
Heat Stress ◽  
Abiotic Stress ◽  
Heat Shock ◽  
Gene Transfer ◽  
Horizontal Gene Transfer ◽  
Heat Shock Proteins ◽  
Heat Tolerance ◽  
Heterotrophic Prokaryotes ◽  
Shock Proteins ◽  
Genomic Basis

AbstractThe nematode Halicephalobus mephisto was originally discovered inhabiting a deep terrestrial aquifer 1.3 km underground. H. mephisto can thrive under conditions of abiotic stress including heat and minimal oxygen, where it feeds on a community of both chemolithotrophic and heterotrophic prokaryotes in an unusual ecosystem isolated from the surface biosphere. Here we report the comprehensive genome and transcriptome of this organism, identifying a signature of adaptation: an expanded repertoire of 70 kilodalton heat-shock proteins (Hsp70) and avrRpt2 induced gene 1 (AIG1) proteins. The expanded Hsp70 genes are transcriptionally induced upon growth under heat stress, and we find that positive selection is detectable in several members of this family. We further show that AIG1 may have been acquired by horizontal gene transfer (HGT) from a rhizobial fungus. Over one-third of the genes of H. mephisto are novel, highlighting the divergence of this nematode from other sequenced organisms. This work sheds light on the genomic basis of heat tolerance in a complete subterrestrial eukaryotic genome.

scholarly journals Small Heat Shock Proteins, Morphological and Physiological Characteristics Associated with Heat Tolerance in Salvia (Salvia splendens)

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1115B-1115
Author(s):  
Seenivasan Natarajan ◽  
Jeff Kuehny
Keyword(s):  
Heat Stress ◽  
High Temperature ◽  
Heat Shock ◽  
Heat Shock Proteins ◽  
Heat Tolerance ◽  
Small Heat Shock Proteins ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Heat Tolerant ◽  
Shock Proteins

Small heat shock proteins (sHSP) are a specific group of highly conserved proteins produced in almost all living organisms under heat stress. These sHSP have been shown to help prevent damage at the biomolecular level in plants. One of the greatest impediments to production of marketable herbaceous plants and their longevity is high temperature stress. The objectives of this experiment were to study the plant responses in terms of sHSP synthesis, single leaf net photosynthesis, total water-soluble carbohydrates (WSC), and overall growth for two S. splendens cultivars differing in performance under heat stress. `Vista Red' (heat tolerant) and `Sizzler Red' (heat sensitive) were exposed to short duration (3 hours) high temperature stresses of 30, 35, and 40 °C in growth chambers. Increasing the temperature to about 10 to 15 °C above the optimal growth temperature (25 °C, control) induced the synthesis of sHSP 27 in S. splendens. Expression of these proteins was significantly greater in the heat-tolerant vs. the heat-sensitive cultivar. Soluble carbohydrate content was greater in `Vista Red', and in both the cultivars raffinose was the primary soluble carbohydrate in heat-stressed plants. Overall growth of plants was significantly different in the two cultivars studied in terms of plant height, stem thickness, number of days to flower, and marketable quality. The better performance of `Vista Red' under heat stress was attributed to its morphological characteristics, including short stature, thicker stems and leaves. sHSPs and WSC are also found to be associated with heat tolerance and heat adaptation in S. splendens.

Heat Tolerance Induction of the Indian Meal Moth (Lepidoptera: Pyralidae) Is Accompanied by Upregulation of Heat Shock Proteins and Polyols

2017 ◽  
Vol 46 (4) ◽  
pp. 1005-1011 ◽  
Author(s):  
Minhyun Kim ◽  
Seunghee Lee ◽  
Yong Shik Chun ◽  
Jahyun Na ◽  
Hyeok Kwon ◽  
...  
Keyword(s):  
Heat Shock ◽  
Heat Shock Proteins ◽  
Heat Tolerance ◽  
Tolerance Induction ◽  
Indian Meal Moth ◽  
Indian Meal ◽  
Lepidoptera Pyralidae ◽  
Shock Proteins

Two Novel Agents Boost Heat Shock Proteins

2005 ◽  
Vol 36 (10) ◽  
pp. 14
Author(s):  
PATRICE WENDLING
Keyword(s):  
Heat Shock ◽  
Heat Shock Proteins ◽  
Novel Agents ◽  
Shock Proteins
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