Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China

Arbuscular mycorrhizal (AM) fungi play a crucial role in promoting plant growth, enhancing plant stress resistance, and sustaining a healthy ecosystem. However, little is known about the mycorrhizal status of teak plantations. Here, we evaluated how the AM fungal communities of rhizosphere soils and...

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Autores principales:	Zhi Yu, Kunnan Liang, Xianbang Wang, Guihua Huang, Mingping Lin, Zaizhi Zhou, Yinglong Chen
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	Tectona grandis arbuscular mycorrhizal fungi stand age soil properties plantations Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/1cd7a57e2a4040e789c012b6b7e363ae
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spelling	oai:doaj.org-article:1cd7a57e2a4040e789c012b6b7e363ae2021-12-01T05:07:46ZAlterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China1664-302X10.3389/fmicb.2021.737068https://doaj.org/article/1cd7a57e2a4040e789c012b6b7e363ae2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.737068/fullhttps://doaj.org/toc/1664-302XArbuscular mycorrhizal (AM) fungi play a crucial role in promoting plant growth, enhancing plant stress resistance, and sustaining a healthy ecosystem. However, little is known about the mycorrhizal status of teak plantations. Here, we evaluated how the AM fungal communities of rhizosphere soils and roots respond to different stand ages of teak: 22, 35, 45, and 55-year-old from the adjacent native grassland (CK). A high-throughput sequencing method was used to compare the differences in soil and root AM fungal community structures. In combination with soil parameters, mechanisms driving the AM fungal community were revealed by redundancy analysis and the Mantel test. Additionally, spore density and colonization rates were analyzed. With increasing stand age, the AM fungal colonization rates and spore density increased linearly. Catalase activity and ammonium nitrogen content also increased, and soil organic carbon, total phosphorous, acid phosphatase activity, available potassium, and available phosphorus first increased and then decreased. Stand age significantly changed the structure of the AM fungal community but had no significant impact on the diversity of the AM fungal community. However, the diversity of the AM fungal community in soils was statistically higher than that in the roots. In total, nine and seven AM fungal genera were detected in the soil and root samples, respectively. The majority of sequences in soils and roots belonged to Glomus. Age-induced changes in soil properties could largely explain the alterations in the structure of the AM fungal community along a chronosequence, which included total potassium, carbon-nitrogen ratio, ammonium nitrogen, catalase, and acid phosphatase levels in soils and catalase, acid phosphatase, pH, and total potassium levels in roots. Soil nutrient availability and enzyme activity were the main driving factors regulating the shift in the AM fungal community structure along a chronosequence of the teak plantations.Zhi YuZhi YuKunnan LiangXianbang WangGuihua HuangMingping LinZaizhi ZhouYinglong ChenFrontiers Media S.A.articleTectona grandisarbuscular mycorrhizal fungistand agesoil propertiesplantationsMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Tectona grandis arbuscular mycorrhizal fungi stand age soil properties plantations Microbiology QR1-502
spellingShingle	Tectona grandis arbuscular mycorrhizal fungi stand age soil properties plantations Microbiology QR1-502 Zhi Yu Zhi Yu Kunnan Liang Xianbang Wang Guihua Huang Mingping Lin Zaizhi Zhou Yinglong Chen Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China
description	Arbuscular mycorrhizal (AM) fungi play a crucial role in promoting plant growth, enhancing plant stress resistance, and sustaining a healthy ecosystem. However, little is known about the mycorrhizal status of teak plantations. Here, we evaluated how the AM fungal communities of rhizosphere soils and roots respond to different stand ages of teak: 22, 35, 45, and 55-year-old from the adjacent native grassland (CK). A high-throughput sequencing method was used to compare the differences in soil and root AM fungal community structures. In combination with soil parameters, mechanisms driving the AM fungal community were revealed by redundancy analysis and the Mantel test. Additionally, spore density and colonization rates were analyzed. With increasing stand age, the AM fungal colonization rates and spore density increased linearly. Catalase activity and ammonium nitrogen content also increased, and soil organic carbon, total phosphorous, acid phosphatase activity, available potassium, and available phosphorus first increased and then decreased. Stand age significantly changed the structure of the AM fungal community but had no significant impact on the diversity of the AM fungal community. However, the diversity of the AM fungal community in soils was statistically higher than that in the roots. In total, nine and seven AM fungal genera were detected in the soil and root samples, respectively. The majority of sequences in soils and roots belonged to Glomus. Age-induced changes in soil properties could largely explain the alterations in the structure of the AM fungal community along a chronosequence, which included total potassium, carbon-nitrogen ratio, ammonium nitrogen, catalase, and acid phosphatase levels in soils and catalase, acid phosphatase, pH, and total potassium levels in roots. Soil nutrient availability and enzyme activity were the main driving factors regulating the shift in the AM fungal community structure along a chronosequence of the teak plantations.
format	article
author	Zhi Yu Zhi Yu Kunnan Liang Xianbang Wang Guihua Huang Mingping Lin Zaizhi Zhou Yinglong Chen
author_facet	Zhi Yu Zhi Yu Kunnan Liang Xianbang Wang Guihua Huang Mingping Lin Zaizhi Zhou Yinglong Chen
author_sort	Zhi Yu
title	Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China
title_short	Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China
title_full	Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China
title_fullStr	Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China
title_full_unstemmed	Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China
title_sort	alterations in arbuscular mycorrhizal community along a chronosequence of teak (tectona grandis) plantations in tropical forests of china
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/1cd7a57e2a4040e789c012b6b7e363ae
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Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China

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