Plant’s and soil organism’s diversity across a range of<i>Eucalyptus grandis</i>plantation ages

Danju, 张丹桔 Zhang; Jian, 张健 Zhang; Wanqin, 杨万勤 Yang; Fuzhong, 吴福忠 Wu; Yumei, 黄玉梅 Huang; Zhiwei, 张志伟 Zhang; Xu, 王旭 Wang; Xiaoqiang, 王小强 Wang; Lin, 朱琳 Zhu

doi:10.5846/stxb201208021098

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…The age of the Eucalyptus plantations was an important driver of fungal alpha diversity and structure in this study. This is consistent with previous studies showing that changes in soil biodiversity in Eucalyptus plantations depend on the age of the plantation and are in parallel with the succession process of Eucalyptus trees (Chen et al, 2011;Zhang et al, 2013). Similar observation results were obtained in boreal Pinus sylvestris (Lim and Berbee, 2013) and Tsuga mertensiana (Kyaschenko et al, 2017) forests, northern temperate Quercus mongolica (He et al, 2016) and Pinus koraiensis (Zhiguang et al, 2016) forests, and Chinese subtropical Phyllostachys praecox (Li et al, 2017) forest, in which the changes in the fungal community were likely parallel with shifts in soil properties and vegetation composition caused by potential feedback on the tree stand age.…”

Section: Discussionsupporting

confidence: 93%

Eucalyptus Plantation Age and Species Govern Soil Fungal Community Structure and Function Under a Tropical Monsoon Climate in China

Liu

et al. 2021

Front. Fungal Biol.

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Fungi perform crucial roles in nutrient cycles, but there is limited information on how soil fungal communities vary with stand age and tree species. Eucalyptus has been extensively planted in China, which has caused severe soil erosion and water deficiency due to short rotation management. In this study, the fungal community structure and potential function in Eucalyptus plantations with different ages (1–5+ years) and species (Eucalyptus urophylla × Eucalyptus grandis, Eucalyptus camaldulens, and Eucalyptus pellita) under a tropical monsoon climate in China were characterized by Illumina Miseq coupled with FUNGuild analysis. The results showed that the fungal alpha diversity decreased with an increase in the age of the plantation. Plantations of different ages and species formed distinct fungal communities and potential functional structures, respectively (p < 0.05), in which the age of the plantation contributed more to the variations. At high taxonomic levels, the soil fungal community changed from the dominance of orders belonging to Ascomycota (Pleosporales, Chaetothyriales, and Eurotiales) to orders belonging to Basidiomycota (Agaricales, Sebacinales, Cantharellales, and Russulales) with increasing plantation age. The community potential function shifted from the dominance of plant pathogens to a higher abundance of saprotrophs and symbiotrophs. The organic carbon of the soil was the key environmental driver to both the fungal community and potential functional structure. The results provide useful information on the importance of fungi for the management of Eucalyptus plantations.

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Section: Discussionsupporting

confidence: 93%

Eucalyptus Plantation Age and Species Govern Soil Fungal Community Structure and Function Under a Tropical Monsoon Climate in China

Liu

et al. 2021

Front. Fungal Biol.

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Soil fauna community characteristics and driving factors of Pinus tabuliformis in the loess region of northern Shaanxi

Zhou

Liu

et al. 2023

CATENA

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The Dynamics of Allelochemicals and Phytotoxicity in Eisenia fetida during the Decomposition of Eucalyptus grandis Litter

Zhang,

Lv,

Fan

et al. 2024

Plants

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Allelopathy is an underlying and controversial mechanism for detrimental environmental effects in the management of Eucalyptus plantations. However, little attention has been paid to the dynamics of allelochemicals and phytotoxicity in soil fauna during litter decomposition. To explore the relationship between the dynamics of phytotoxicity and allelochemicals, a decomposition experiment was conducted using 4-year-old and 8-year-old Eucalyptus grandis litter (0, 10, 20, 30, and 45 days). The acute toxicity of Eisenia fetida was assessed, and a chemical analysis of the eucalyptus leaves was performed. Biochemical markers, including total protein, acetylcholinesterase (AChE) activity, and oxidative stress levels (SOD and MDA) were measured. A comet assay was used to determine DNA damage in E. fetida cells. The results showed that after 20–30 days of decomposition, E. grandis litter exhibited stronger phytotoxic effects on E. fetida in terms of growth and biochemical levels. After 20 days of decomposition, the weight and total protein content of E. fetida first decreased and then increased over time. SOD activity increased after 20 days but decreased after 30 days of decomposition before increasing again. MDA content increased after 20 days, then decreased or was stable. AChE activity was inhibited after 30 days of decomposition and then increased or stabilized with further decomposition. Soluble allelochemicals, such as betaine, chlorogenic acid, and isoquercitrin, significantly decreased or disappeared during the initial decomposition stage, but pipecolic acid significantly increased, along with newly emerging phenolic fractions that were present. More allelochemicals were released from 8-year-old litter than from 4-year-old E. grandis litter, resulting in consistently more severe phytotoxic responses and DNA damage in E. fetida. Scientific management measures, such as the appropriate removal of leaf litter in the early stages of decomposition, might help support greater biodiversity in E. grandis plantations.

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Plant’s and soil organism’s diversity across a range ofEucalyptus grandisplantation ages

Cited by 4 publications

References 15 publications

Eucalyptus Plantation Age and Species Govern Soil Fungal Community Structure and Function Under a Tropical Monsoon Climate in China

Eucalyptus Plantation Age and Species Govern Soil Fungal Community Structure and Function Under a Tropical Monsoon Climate in China

Soil fauna community characteristics and driving factors of Pinus tabuliformis in the loess region of northern Shaanxi

The Dynamics of Allelochemicals and Phytotoxicity in Eisenia fetida during the Decomposition of Eucalyptus grandis Litter

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