Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition

Abstract Understanding the mechanism for heat tolerance is important for the hot pepper breeding program to develop heat-tolerant cultivars in changing climate. This study was conducted to investigate physiological and biochemical parameters related to heat tolerance and to determine leaf heat damag...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sherzod Nigmatullayevich Rajametov, Eun Young Yang, Myeong Cheoul Cho, Soo Young Chae, Hyo Bong Jeong, Won Byoung Chae
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a40d4332dfa8414dac753dfaa3b0ecc0
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a40d4332dfa8414dac753dfaa3b0ecc0
record_format	dspace
spelling	oai:doaj.org-article:a40d4332dfa8414dac753dfaa3b0ecc02021-12-02T18:30:40ZHeat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition10.1038/s41598-021-93697-52045-2322https://doaj.org/article/a40d4332dfa8414dac753dfaa3b0ecc02021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93697-5https://doaj.org/toc/2045-2322Abstract Understanding the mechanism for heat tolerance is important for the hot pepper breeding program to develop heat-tolerant cultivars in changing climate. This study was conducted to investigate physiological and biochemical parameters related to heat tolerance and to determine leaf heat damage levels critical for selecting heat-tolerant genotypes. Seedlings of two commercial cultivars, heat-tolerant ‘NW Bigarim’ (NB) and susceptible ‘Chyung Yang’ (CY), were grown in 42 °C for ten days. Photosynthesis, electrolyte conductivity, proline content were measured among seedlings during heat treatment. Photosynthetic rate was significantly reduced in ‘CY’ but not in ‘NB’ seedlings in 42 °C. Stomatal conductivity and transpiration rate was significantly higher in ‘NB’ than ‘CY’. Proline content was also significantly higher in ‘NB’. After heat treatment, leaf heat damages were determined as 0, 25, 50 and 75% and plants with different leaf heat damages were moved to a glasshouse (30–32/22–24 °C in day/night). The growth and developmental parameters were investigated until 70 days. ‘NB’ was significantly affected by leaf heat damages only in fruit yield while ‘CY’ was in fruit set, number and yield. ‘NB’ showed fast recovery after heat stress compared to ‘CY’. These results suggest that constant photosynthetic rate via increased transpiration rate as well as high proline content in heat stress condition confer faster recovery from heat damage of heat-tolerant cultivars in seedlings stages.Sherzod Nigmatullayevich RajametovEun Young YangMyeong Cheoul ChoSoo Young ChaeHyo Bong JeongWon Byoung ChaeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sherzod Nigmatullayevich Rajametov Eun Young Yang Myeong Cheoul Cho Soo Young Chae Hyo Bong Jeong Won Byoung Chae Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
description	Abstract Understanding the mechanism for heat tolerance is important for the hot pepper breeding program to develop heat-tolerant cultivars in changing climate. This study was conducted to investigate physiological and biochemical parameters related to heat tolerance and to determine leaf heat damage levels critical for selecting heat-tolerant genotypes. Seedlings of two commercial cultivars, heat-tolerant ‘NW Bigarim’ (NB) and susceptible ‘Chyung Yang’ (CY), were grown in 42 °C for ten days. Photosynthesis, electrolyte conductivity, proline content were measured among seedlings during heat treatment. Photosynthetic rate was significantly reduced in ‘CY’ but not in ‘NB’ seedlings in 42 °C. Stomatal conductivity and transpiration rate was significantly higher in ‘NB’ than ‘CY’. Proline content was also significantly higher in ‘NB’. After heat treatment, leaf heat damages were determined as 0, 25, 50 and 75% and plants with different leaf heat damages were moved to a glasshouse (30–32/22–24 °C in day/night). The growth and developmental parameters were investigated until 70 days. ‘NB’ was significantly affected by leaf heat damages only in fruit yield while ‘CY’ was in fruit set, number and yield. ‘NB’ showed fast recovery after heat stress compared to ‘CY’. These results suggest that constant photosynthetic rate via increased transpiration rate as well as high proline content in heat stress condition confer faster recovery from heat damage of heat-tolerant cultivars in seedlings stages.
format	article
author	Sherzod Nigmatullayevich Rajametov Eun Young Yang Myeong Cheoul Cho Soo Young Chae Hyo Bong Jeong Won Byoung Chae
author_facet	Sherzod Nigmatullayevich Rajametov Eun Young Yang Myeong Cheoul Cho Soo Young Chae Hyo Bong Jeong Won Byoung Chae
author_sort	Sherzod Nigmatullayevich Rajametov
title	Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
title_short	Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
title_full	Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
title_fullStr	Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
title_full_unstemmed	Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
title_sort	heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a40d4332dfa8414dac753dfaa3b0ecc0
work_keys_str_mv	AT sherzodnigmatullayevichrajametov heattoleranthotpepperexhibitsconstantphotosynthesisviaincreasedtranspirationratehighprolinecontentandfastrecoveryinheatstresscondition AT eunyoungyang heattoleranthotpepperexhibitsconstantphotosynthesisviaincreasedtranspirationratehighprolinecontentandfastrecoveryinheatstresscondition AT myeongcheoulcho heattoleranthotpepperexhibitsconstantphotosynthesisviaincreasedtranspirationratehighprolinecontentandfastrecoveryinheatstresscondition AT sooyoungchae heattoleranthotpepperexhibitsconstantphotosynthesisviaincreasedtranspirationratehighprolinecontentandfastrecoveryinheatstresscondition AT hyobongjeong heattoleranthotpepperexhibitsconstantphotosynthesisviaincreasedtranspirationratehighprolinecontentandfastrecoveryinheatstresscondition AT wonbyoungchae heattoleranthotpepperexhibitsconstantphotosynthesisviaincreasedtranspirationratehighprolinecontentandfastrecoveryinheatstresscondition
_version_	1718377998367850496

Heat-tolerant hot pepper exhibits constant photosynthesis via increased transpiration rate, high proline content and fast recovery in heat stress condition

Ejemplares similares