Response mechanisms induced by exposure to high temperature in anthers from thermo-tolerant and thermo-sensitive tomato plants: A proteomic perspective

Mazzeo, Maria Fiorella; Cacace, Giuseppina; Iovieno, Paolo; Massarelli, Immacolata; Grillo, Stefania; Siciliano, Roberta

doi:10.1371/journal.pone.0201027

Cited by 23 publications

(20 citation statements)

References 52 publications

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“…Indeed, different biochemical mechanisms, including plastid biogenesis and pigments/secondary metabolites synthesis, can be activated in plant cells in response to abiotic stresses . Since thermo‐tolerance requires the modulation of biochemical pathways involved in reactive oxygen species (ROS) detoxification, antioxidant compounds, including carotenoids, ascorbic acid (AsA) and polyphenols, are accumulated in response to heat stress . Carotenoids can also contribute to membranes fluidity and permeability in response to temperature fluctuations .…”

Section: Introductionmentioning

confidence: 99%

“…1,[4][5][6][7] Since thermo-tolerance requires the modulation of biochemical pathways involved in reactive oxygen species (ROS) detoxification, antioxidant compounds, including carotenoids, ascorbic acid (AsA) and polyphenols, are accumulated in response to heat stress. 8,9 Carotenoids can also contribute to membranes fluidity and permeability in response to temperature fluctuations. 5,6 Indeed, these molecules can exert a protective role in photosynthetic membranes and play important roles in structural stabilization, light harvesting, and photoprotection.…”

Section: Introductionmentioning

confidence: 99%

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Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

et al. 2020

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BACKGROUND Global warming and extreme or adverse events induced by climatic fluctuations are an important threat for plants growth and agricultural production. Adaptability to environmental changes prevalently derives from a large set of genetic traits affecting physiological and agronomic parameters. Therefore, the identification of genotypes that are good yield performer at high temperatures is becoming increasingly necessary for future breeding programs. Here, we analyzed the performances of different tomato landraces grown under elevated temperatures in terms of yield and nutritional quality of the fruit. Finally, we evaluated the antioxidant and anti‐inflammatory activities of fruit extracts from the tomato landraces selected. RESULTS The tomato landraces analyzed here in a hot climate differed in terms of yield performance, physicochemical parameters of fruit (pH, titratable acidity, degrees Brix, firmness), bioactive compounds (ascorbic acid, carotenoids, and polyphenols), and anti‐inflammatory potential. Three of these landraces (named E30, E94, and PDVIT) showed higher fruit quality and nutritional value. An estimated evaluation index allowed identification of PDVIT as the best performer in terms of yield and fruit quality under high temperatures. CONCLUSION The analyses performed here highlight the possibility to identify new landraces that can combine good yield performances and fruit nutritional quality at high temperatures, information that is useful for future breeding programs. © 2020 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

et al. 2020

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“…HS leads to reduced tomato yield by affecting its vegetative as well as reproductive development (Pressman et al, 2002;Sato et al, 2000). Transcript profiling using cDNA-AFLP (Bita et al, 2011) and microarray analysis (Frank et al, 2009) as well as proteomic analyses (Mazzeo et al, 2018) of microspores has shown active involvement of HSPs, ROS scavengers, hormones, amino acid metabolism and nitrogen assimilation in tomato HS response. Heat-inducible tomato HSP21 protects PSII from the HS-induced oxidative stress and also plays role in fruit ripening (Neta-Sharir et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Characterization of novel regulators for heat stress tolerance in tomato from Indian sub‐continent

Balyan

Rao

Jha

et al. 2020

Plant Biotechnology Journal

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Summary The footprint of tomato cultivation, a cool region crop that exhibits heat stress (HS) sensitivity, is increasing in the tropics/sub‐tropics. Knowledge of novel regulatory hot spots from varieties growing in the Indian sub‐continent climatic zones could be vital for developing HS‐resilient crops. Comparative transcriptome‐wide signatures of a tolerant (CLN1621L) and sensitive (CA4) cultivar pair shortlisted from a pool of varieties exhibiting variable thermo‐sensitivity using physiological‐, survival‐ and yield‐related traits revealed redundant to cultivar‐specific HS regulation. The antagonistically expressing genes encode enzymes and proteins that have roles in plant defence and abiotic stresses. Functional characterization of three antagonistic genes by overexpression and silencing established Solyc09g014280 (Acylsugar acyltransferase) and Solyc07g056570 (Notabilis) that are up‐regulated in tolerant cultivar, as positive regulators of HS tolerance and Solyc03g020030 (Pin‐II proteinase inhibitor), that are down‐regulated in CLN1621L, as negative regulator of thermotolerance. Transcriptional assessment of promoters of these genes by SNPs in stress‐responsive cis‐elements and promoter swapping experiments in opposite cultivar background showed inherent cultivar‐specific orchestration of transcription factors in regulating transcription. Moreover, overexpression of three ethylene response transcription factors (ERF.C1/F4/F5) also improved HS tolerance in tomato. This study identifies several novel HS tolerance genes and provides proof of their utility in tomato thermotolerance.

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“…Both transitory and constant exposure of plants to heat stress have effects on the physiology, morphology, and biochemical activities in plants that involves changes in cell structure and metabolism and alterations in the accumulation of protein as well as primary and secondary metabolites [ 4 , 5 ]. Heat stress is also known to cause oxidative stress in plants through the production of reactive oxygen species such as singlet oxygen ( 1 O 2 ), superoxide ion (O 2 ), hydrogen peroxide (H 2 O 2 ), and hydroxyl radicals (OH) with major damages to plant growth and general performances [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Increasing Air Temperatures and Its Effects on Growth and Productivity of Tomato in South Florida

Ayankojo

Morgan

2020

Plants

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Florida ranks first among US states in fresh-market tomato production with annual production exceeding one-third of the total annual production in the country. Although tomato is a signature crop in Florida, current and future ambient temperatures could impose a major production challenge, especially during the fall growing season. This problem is increasingly becoming an important concern among tomato growers in south Florida, but studies addressing these concerns have not been conducted until now. Therefore, this study was conducted to determine the impacts of the present ambient temperature conditions and planting dates on tomato productivity in south Florida. The study was conducted using crop simulation model CROPGRO-Tomato of DSSAT (Decision Support System for Agricultural Transfer) version 4.7. Five treatments were evaluated, and included AT (simulated treatment using 14 years of actual daily weather conditions at the study location) while other treatments were conducted based on a percentage (−20%, −10%, +10%, +20%) of AT to simulate cooler and warmer temperature regimes. The results suggested that under the current temperature conditions during the fall growing season in south Florida, average tomato yield was up to 29% lower compared to the cooler temperature regimes. Tomato yield further decreased by 52% to 85% at air temperatures above the current condition. Yield reduction under high temperature was primarily due to lower fruit production. Contrary to yield, both tomato biomass accumulation and leaf area index increased with increase in temperature. Results also indicated that due to changes in air temperature pattern, tomato yield increased as planting date increased from July to December. Therefore, planting date modification during the fall season from the current July–September to dates between November and December will reduce the impacts of heat stress and increase tomato productivity in south Florida.

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Response mechanisms induced by exposure to high temperature in anthers from thermo-tolerant and thermo-sensitive tomato plants: A proteomic perspective

Cited by 23 publications

References 52 publications

Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

Characterization of novel regulators for heat stress tolerance in tomato from Indian sub‐continent

Increasing Air Temperatures and Its Effects on Growth and Productivity of Tomato in South Florida

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