Evaluation of a Rapid Method for Screening Heat Stress Tolerance Using Three Korean Wheat (Triticum aestivum L.) Cultivars

Hai An Truong; Chan Young Jeong; Won Je Lee; Byung Cheon Lee; Namhyun Chung; Chon Sik Kang; Young Keun Cheong; Suk Whan Hong; Hojoung Lee

doi:10.1021/acs.jafc.7b01752

Evaluation of a Rapid Method for Screening Heat Stress Tolerance Using Three Korean Wheat (Triticum aestivum L.) Cultivars

Hai An Truong, Chan Young Jeong, Won Je Lee, Byung Cheon Lee, Namhyun Chung, Chon Sik Kang, Young Keun Cheong, Suk Whan Hong, Hojoung Lee

Department of Biosystems and Biotechnology

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Thermotolerance in plants is a topic of concern given the current trends in global warming. Here, we aimed to develop a rapid and reproducible screening method for selection of heat stress-tolerant wheat varieties to expedite the breeding process. We tested the robustness of the screen in three Korean wheat cultivars, "BackJung", "KeumKang", and "ChoKyeong". We showed that 4-day-old seedlings of "KeumKang" had the highest survival rates after a 45 °C treatment for 20 h. Moreover, the ability to retain chlorophyll and antioxidant activity was also highest in "KeumKang". The increase in malondialdehyde content in "ChoKyeong" indicated that this cultivar showed the greatest damage after heat stress. Collectively, our results showed that "KeumKang" is the most heat-tolerant cultivar of the three examined. In conclusion, the most reliable and rapid screening method in our investigation was survival rate examined at lethal temperature.

Original language	English
Pages (from-to)	5589-5597
Number of pages	9
Journal	Journal of agricultural and food chemistry
Volume	65
Issue number	28
DOIs	https://doi.org/10.1021/acs.jafc.7b01752
Publication status	Published - 2017 Jul 19

Keywords

Triticum aestivum
abiotic stress
heat shock protein
heat stress
malondialdehyde
wheat

ASJC Scopus subject areas

Chemistry(all)
Agricultural and Biological Sciences(all)

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10.1021/acs.jafc.7b01752

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title = "Evaluation of a Rapid Method for Screening Heat Stress Tolerance Using Three Korean Wheat (Triticum aestivum L.) Cultivars",

abstract = "Thermotolerance in plants is a topic of concern given the current trends in global warming. Here, we aimed to develop a rapid and reproducible screening method for selection of heat stress-tolerant wheat varieties to expedite the breeding process. We tested the robustness of the screen in three Korean wheat cultivars, {"}BackJung{"}, {"}KeumKang{"}, and {"}ChoKyeong{"}. We showed that 4-day-old seedlings of {"}KeumKang{"} had the highest survival rates after a 45 °C treatment for 20 h. Moreover, the ability to retain chlorophyll and antioxidant activity was also highest in {"}KeumKang{"}. The increase in malondialdehyde content in {"}ChoKyeong{"} indicated that this cultivar showed the greatest damage after heat stress. Collectively, our results showed that {"}KeumKang{"} is the most heat-tolerant cultivar of the three examined. In conclusion, the most reliable and rapid screening method in our investigation was survival rate examined at lethal temperature.",

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author = "Truong, {Hai An} and Jeong, {Chan Young} and Lee, {Won Je} and Lee, {Byung Cheon} and Namhyun Chung and Kang, {Chon Sik} and Cheong, {Young Keun} and Hong, {Suk Whan} and Hojoung Lee",

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doi = "10.1021/acs.jafc.7b01752",

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AU - Truong, Hai An

AU - Jeong, Chan Young

AU - Lee, Won Je

AU - Lee, Byung Cheon

AU - Chung, Namhyun

AU - Kang, Chon Sik

AU - Cheong, Young Keun

AU - Hong, Suk Whan

AU - Lee, Hojoung

PY - 2017/7/19

Y1 - 2017/7/19

N2 - Thermotolerance in plants is a topic of concern given the current trends in global warming. Here, we aimed to develop a rapid and reproducible screening method for selection of heat stress-tolerant wheat varieties to expedite the breeding process. We tested the robustness of the screen in three Korean wheat cultivars, "BackJung", "KeumKang", and "ChoKyeong". We showed that 4-day-old seedlings of "KeumKang" had the highest survival rates after a 45 °C treatment for 20 h. Moreover, the ability to retain chlorophyll and antioxidant activity was also highest in "KeumKang". The increase in malondialdehyde content in "ChoKyeong" indicated that this cultivar showed the greatest damage after heat stress. Collectively, our results showed that "KeumKang" is the most heat-tolerant cultivar of the three examined. In conclusion, the most reliable and rapid screening method in our investigation was survival rate examined at lethal temperature.

AB - Thermotolerance in plants is a topic of concern given the current trends in global warming. Here, we aimed to develop a rapid and reproducible screening method for selection of heat stress-tolerant wheat varieties to expedite the breeding process. We tested the robustness of the screen in three Korean wheat cultivars, "BackJung", "KeumKang", and "ChoKyeong". We showed that 4-day-old seedlings of "KeumKang" had the highest survival rates after a 45 °C treatment for 20 h. Moreover, the ability to retain chlorophyll and antioxidant activity was also highest in "KeumKang". The increase in malondialdehyde content in "ChoKyeong" indicated that this cultivar showed the greatest damage after heat stress. Collectively, our results showed that "KeumKang" is the most heat-tolerant cultivar of the three examined. In conclusion, the most reliable and rapid screening method in our investigation was survival rate examined at lethal temperature.

KW - Triticum aestivum

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KW - heat shock protein

KW - heat stress

KW - malondialdehyde

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Evaluation of a Rapid Method for Screening Heat Stress Tolerance Using Three Korean Wheat (Triticum aestivum L.) Cultivars

Abstract

Keywords

ASJC Scopus subject areas

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