The Jasmonic Acid Biosynthetic Genes SmLOX4 and SmLOX5 Are Involved in Heat Tolerance in Eggplant.

Autor:	Liu R; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Shu B; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Wang Y; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Feng J; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Yu B; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Gan Y; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Liang Y; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Qiu Z; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Yan S; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China., Cao B; Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.; Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou 510642, China.
Jazyk:	angličtina
Zdroj:	Plant & cell physiology [Plant Cell Physiol] 2024 Nov 13; Vol. 65 (10), pp. 1705-1716.
DOI:	10.1093/pcp/pcae088
Abstrakt:	High-temperature stress (HTS) affects the growth and production of vegetable crops, including eggplant (Solanum melongena L.). Jasmonic acid (JA) plays key roles in regulating resistance to biotic and abiotic stresses in plants. Nonetheless, reports on the role of JA in heat tolerance in eggplant are rare. Herein, the effects of JA on heat tolerance in eggplant and the functions of the JA biosynthetic genes SmLOX4 and SmLOX5 were analyzed. The results showed that the JA content increased under high-temperature treatment (HTT) and exogenous methyl jasmonate (MeJA) treatment reduced the damage caused by HTT to eggplant. The expression of SmLOX4 and SmLOX5 was induced by HTT and significantly positively correlated with JA biosynthesis. SmLOX4 and SmLOX5 were localized in chloroplasts. The silencing of SmLOX4 and SmLOX5 by virus-induced gene silencing suppressed the heat tolerance of eggplant, whereas the overexpression of SmLOX4 and SmLOX5 enhanced the heat tolerance of Arabidopsis thaliana. JA content and the expression of JA signaling-related genes decreased in the SmLOX4- and SmLOX5-silenced plants but increased in the OE-SmLOX4 and OE-SmLOX5 transgenic plants. These results revealed that SmLOX4 and SmLOX5 improved eggplant heat tolerance by mediating JA biosynthesis and JA signaling pathways. (© The Author(s) 2024. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists.)
Databáze:	MEDLINE
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