Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia

For the first time, the diversity of life forms and phenolic profiles of five high-altitude species of Nepeta endemic to Central Asia were studied by cluster analysis and principal component analysis. We revealed effects of climatic factors on the average number of short modules and the average leng...

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Autores principales:	Alexey Yu Astashenkov, Evgeniya A. Karpova, Vera A. Cherymushkina
Formato:	article
Lenguaje:	EN
Publicado:	National Taiwan University 2021
Materias:	adaptation climate aridization edaphic factors geographic variation nepeta ontogenesis Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/497537dab3224bbc850a5a7742c702a9
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spelling	oai:doaj.org-article:497537dab3224bbc850a5a7742c702a92021-11-26T02:02:54ZDiversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia10.6165/tai.2021.66.5410372-333Xhttps://doaj.org/article/497537dab3224bbc850a5a7742c702a92021-11-01T00:00:00Zhttps://taiwania.ntu.edu.tw/abstract.php?type=abstract&id=1791https://doaj.org/toc/0372-333XFor the first time, the diversity of life forms and phenolic profiles of five high-altitude species of Nepeta endemic to Central Asia were studied by cluster analysis and principal component analysis. We revealed effects of climatic factors on the average number of short modules and the average length of long modules making up the perennial axis of the plant as well as on concentrations of cinnamic and chlorogenic acids, cynaroside, isoquercitrin, and total phenolics. The significance of edaphic factors was also shown. The species inhabiting stony and movable substrates form mainly long modules (N. densiflora, N. kokamirica). Under conditions of local moistening, life form with maximum length of long modules develops (N. transiliensis), whereas grass-covered soils promote the formation of short modules (N. mariae and N. pulchella). The findings made it possible to reconstruct the course of evolutionary transformations of life forms for the studied Nepeta species. The phenolic profiles were species-specific, but their geographic variation does not match the geographic variation of morphological traits. The highest concentrations of isoquercitrin and total phenolic compounds in N. densiflora (12.0 and 56.7 mg·g-1 dry weight) - the species presumably closest to the ancestral form - indicate a decrease in the quercetin level during aridization in the course of evolution. The phenolic profile of this species, also characterized by high concentrations of chlorogenic and rosmarinic acids and of luteolin glycosides, is described for the first time in the genus and means that N. densiflora is a unique resource for therapeutic applications.Alexey Yu AstashenkovEvgeniya A. KarpovaVera A. CherymushkinaNational Taiwan Universityarticleadaptationclimate aridizationedaphic factorsgeographic variationnepetaontogenesisBiology (General)QH301-705.5ENTaiwania, Vol 66, Iss 4, Pp 541-556 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adaptation climate aridization edaphic factors geographic variation nepeta ontogenesis Biology (General) QH301-705.5
spellingShingle	adaptation climate aridization edaphic factors geographic variation nepeta ontogenesis Biology (General) QH301-705.5 Alexey Yu Astashenkov Evgeniya A. Karpova Vera A. Cherymushkina Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia
description	For the first time, the diversity of life forms and phenolic profiles of five high-altitude species of Nepeta endemic to Central Asia were studied by cluster analysis and principal component analysis. We revealed effects of climatic factors on the average number of short modules and the average length of long modules making up the perennial axis of the plant as well as on concentrations of cinnamic and chlorogenic acids, cynaroside, isoquercitrin, and total phenolics. The significance of edaphic factors was also shown. The species inhabiting stony and movable substrates form mainly long modules (N. densiflora, N. kokamirica). Under conditions of local moistening, life form with maximum length of long modules develops (N. transiliensis), whereas grass-covered soils promote the formation of short modules (N. mariae and N. pulchella). The findings made it possible to reconstruct the course of evolutionary transformations of life forms for the studied Nepeta species. The phenolic profiles were species-specific, but their geographic variation does not match the geographic variation of morphological traits. The highest concentrations of isoquercitrin and total phenolic compounds in N. densiflora (12.0 and 56.7 mg·g-1 dry weight) - the species presumably closest to the ancestral form - indicate a decrease in the quercetin level during aridization in the course of evolution. The phenolic profile of this species, also characterized by high concentrations of chlorogenic and rosmarinic acids and of luteolin glycosides, is described for the first time in the genus and means that N. densiflora is a unique resource for therapeutic applications.
format	article
author	Alexey Yu Astashenkov Evgeniya A. Karpova Vera A. Cherymushkina
author_facet	Alexey Yu Astashenkov Evgeniya A. Karpova Vera A. Cherymushkina
author_sort	Alexey Yu Astashenkov
title	Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia
title_short	Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia
title_full	Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia
title_fullStr	Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia
title_full_unstemmed	Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia
title_sort	diversity patterns of life forms and phenolic profiles of endemic nepeta plants along an aridity gradient of a high-mountain zone in central asia
publisher	National Taiwan University
publishDate	2021
url	https://doaj.org/article/497537dab3224bbc850a5a7742c702a9
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Diversity patterns of life forms and phenolic profiles of endemic Nepeta plants along an aridity gradient of a high-mountain zone in Central Asia

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