Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter

The accumulation of anthocyanins in leaves and stems of Mikania micrantha improves its adaptability to low-temperature environments during winter in areas where this species is invasive. The accumulation of anthocyanins in M. micrantha causes the plants to exhibit red coloration when encountering lo...

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Autores principales: Zhang, Qilei, Zhai, Junjie, Shao, Ling, Lin, Wei, Peng, Changlian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726734/
https://www.ncbi.nlm.nih.gov/pubmed/31555311
http://dx.doi.org/10.3389/fpls.2019.01049
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author Zhang, Qilei
Zhai, Junjie
Shao, Ling
Lin, Wei
Peng, Changlian
author_facet Zhang, Qilei
Zhai, Junjie
Shao, Ling
Lin, Wei
Peng, Changlian
author_sort Zhang, Qilei
collection PubMed
description The accumulation of anthocyanins in leaves and stems of Mikania micrantha improves its adaptability to low-temperature environments during winter in areas where this species is invasive. The accumulation of anthocyanins in M. micrantha causes the plants to exhibit red coloration when encountering low-temperature environments during winter. Many studies have reported that the accumulation of anthocyanins near the plant surface filters light and improves photoprotection. However, the results of this study showed that the main role of anthocyanins accumulation in M. micrantha during winter was to increase both antioxidant capability and tolerance to low temperature. The results showed that the anthocyanin contents were significantly higher in red leaves and stems than in green leaves and stems, with more than 60-fold greater content in red leaves than in green leaves. In addition, the total antioxidant capability was significantly greater in red leaves and stems than in green leaves and stems. After 4°C treatment for 12 h, a large amount of reactive oxygen species accumulated in green leaves and stems, and the maximum photochemical efficiency decreased significantly. Compared with that of the green leaves, the net photosynthetic rate of red leaves was significantly higher. The biomass statistics revealed that the dry matter accumulation of M. micrantha plants with relatively large amounts of anthocyanins was significantly greater than that of plants with relatively low anthocyanin levels during the same period. Our results suggest that the accumulation of anthocyanins during winter is an adaptation strategy of M. micrantha to low winter temperatures.
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spelling pubmed-67267342019-09-25 Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter Zhang, Qilei Zhai, Junjie Shao, Ling Lin, Wei Peng, Changlian Front Plant Sci Plant Science The accumulation of anthocyanins in leaves and stems of Mikania micrantha improves its adaptability to low-temperature environments during winter in areas where this species is invasive. The accumulation of anthocyanins in M. micrantha causes the plants to exhibit red coloration when encountering low-temperature environments during winter. Many studies have reported that the accumulation of anthocyanins near the plant surface filters light and improves photoprotection. However, the results of this study showed that the main role of anthocyanins accumulation in M. micrantha during winter was to increase both antioxidant capability and tolerance to low temperature. The results showed that the anthocyanin contents were significantly higher in red leaves and stems than in green leaves and stems, with more than 60-fold greater content in red leaves than in green leaves. In addition, the total antioxidant capability was significantly greater in red leaves and stems than in green leaves and stems. After 4°C treatment for 12 h, a large amount of reactive oxygen species accumulated in green leaves and stems, and the maximum photochemical efficiency decreased significantly. Compared with that of the green leaves, the net photosynthetic rate of red leaves was significantly higher. The biomass statistics revealed that the dry matter accumulation of M. micrantha plants with relatively large amounts of anthocyanins was significantly greater than that of plants with relatively low anthocyanin levels during the same period. Our results suggest that the accumulation of anthocyanins during winter is an adaptation strategy of M. micrantha to low winter temperatures. Frontiers Media S.A. 2019-08-29 /pmc/articles/PMC6726734/ /pubmed/31555311 http://dx.doi.org/10.3389/fpls.2019.01049 Text en Copyright © 2019 Zhang, Zhai, Shao, Lin and Peng http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Zhang, Qilei
Zhai, Junjie
Shao, Ling
Lin, Wei
Peng, Changlian
Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter
title Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter
title_full Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter
title_fullStr Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter
title_full_unstemmed Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter
title_short Accumulation of Anthocyanins: An Adaptation Strategy of Mikania micrantha to Low Temperature in Winter
title_sort accumulation of anthocyanins: an adaptation strategy of mikania micrantha to low temperature in winter
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726734/
https://www.ncbi.nlm.nih.gov/pubmed/31555311
http://dx.doi.org/10.3389/fpls.2019.01049
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