2010•Zhongguo shengtai nongye xuebaoOpen access

Effect of root-knot nematode inoculation on rhizospheric soil pH and microbial community of cucumber (Cucumis sativus L.) plant

Hua Xu, Weibin Ruan, Yubao Gao, Xiao‐Yan Song, Yukun K Wei

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Abstract

通过人工接种不同数量的根结线虫卵, 测定了黄瓜植株根际土壤的pH和微生物数量。结果表明, 随接种数量的增加, 根际土壤好气性细菌数量、厌气性细菌数量、细菌总数及细菌/真菌(B/F)逐渐降低; 真菌数量却逐渐升高; 放线菌数量在接种量为2 000个·株-1时显著升高, 之后随着接种量的增加逐渐降低; 放线菌/真菌(A/F)在接种量为2 000个·株-1时略有升高, 之后随着接种量的增加逐渐降低。接种根结线虫后, 黄瓜植株根际土壤中好气性细菌数量和B/F值与pH呈显著正相关, 厌气性细菌数量、细菌总数、放线菌数量以及A/F值与pH呈极显著正相关, 真菌数量与pH呈显著负相关。根结线虫侵染黄瓜植株导致根际土壤发生“真菌化”, 显示土壤质量下降。

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通过人工接种不同数量的根结线虫卵, 测定了黄瓜植株根际土壤的pH和微生物数量。结果表明, 随接种数量的增加, 根际土壤好气性细菌数量、厌气性细菌数量、细菌总数及细菌/真菌(B/F)逐渐降低; 真菌数量却逐渐升高; 放线菌数量在接种量为2 000个·株-1时显著升高, 之后随着接种量的增加逐渐降低; 放线菌/真菌(A/F)在接种量为2 000个·株-1时略有升高, 之后随着接种量的增加逐渐降低。接种根结线虫后, 黄瓜植株根际土壤中好气性细菌数量和B/F值与pH呈显著正相关, 厌气性细菌数量、细菌总数、放线菌数量以及A/F值与pH呈极显著正相关, 真菌数量与pH呈显著负相关。根结线虫侵染黄瓜植株导致根际土壤发生“真菌化”, 显示土壤质量下降。

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Available abstract

通过人工接种不同数量的根结线虫卵, 测定了黄瓜植株根际土壤的pH和微生物数量。结果表明, 随接种数量的增加, 根际土壤好气性细菌数量、厌气性细菌数量、细菌总数及细菌/真菌(B/F)逐渐降低; 真菌数量却逐渐升高; 放线菌数量在接种量为2 000个·株-1时显著升高, 之后随着接种量的增加逐渐降低; 放线菌/真菌(A/F)在接种量为2 000个·株-1时略有升高, 之后随着接种量的增加逐渐降低。接种根结线虫后, 黄瓜植株根际土壤中好气性细菌数量和B/F值与pH呈显著正相关, 厌气性细菌数量、细菌总数、放线菌数量以及A/F值与pH呈极显著正相关, 真菌数量与pH呈显著负相关。根结线虫侵染黄瓜植株导致根际土壤发生“真菌化”, 显示土壤质量下降。

Key concepts: Cucumis, Inoculation, Chemistry, Horticulture, Cucurbitaceae, Botany, Biology

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Effect of root-knot nematode inoculation on rhizospheric soil pH and microbial community of cucumber (Cucumis sativus L.) plant — Research Paper | ScholarLens