甘肃不同居群桃儿七\[Sinopodophyllum hexandrum (Royle) Ying\]鬼臼毒素含量与环境因子的相关性

生态学杂志

甘肃不同居群桃儿七\[Sinopodophyllum hexandrum (Royle) Ying\]鬼臼毒素含量与环境因子的相关性

郭琪^1,2,张军^1,2,王沛雅^1,2,巩晓芳^1,2,彭轶楠^1,2,杨晖^1,2*,杜维波^1,2#br#

（¹甘肃省科学院生物研究所，兰州 730000; ²甘肃省微生物资源开发利用重点实验室，兰州 730000)

出版日期:2017-05-10 发布日期:2017-05-10

Correlation between podophyllotoxin content in Sinopodophyllum hexandrum (Royle) Ying from different populations in Gansu Province and environmental factors.

GUO Qi^1,2, ZHANG Jun^1,2, WANG Pei-ya^1,2, GONG Xiao-fang^1,2, PENG Yi-nan^1,2, YANG Hui^1,2*, DU Wei-bo^1,2#br#

(¹Institute of Biology, Gansu Academy of Sciences, Lanzhou 730000, China; ²Key Laboratory of Microbial Resources Exploitation and Application, Gansu Province, Lanzhou 730000, China).

Online:2017-05-10 Published:2017-05-10

摘要/Abstract

摘要： 为探讨桃儿七(Sinopodophyllum hexandrum)中鬼臼毒素含量与环境因子的相关性，采集甘肃省境内6个不同居群桃儿七的地下部分和根际土壤样品，测定鬼臼毒素含量和根际土壤中水分、pH值、有机质、总氮、速效磷、速效钾、有效铁、有效锰、有效铜、有效镁、总铁、总锰、总铜、总镁等14个因子。采用逐步回归分析和通径分析方法对土壤因子、海拔和气候因子(年均温、年均降雨量、年均日照时数、年均最高温(2010—2014年最高温的平均值)、年均最低温(2010—2014年最低温的平均值))与桃儿七地下部分的鬼臼毒素含量进行了相关性分析。结果表明：不同居群间桃儿七鬼臼毒素含量呈现极显著差异，居群内鬼臼毒素含量相对一致，基本呈正态分布。逐步回归结果显示，年均温、年均日照时数和土壤总氮含量是影响桃儿七鬼臼毒素含量的3个主导环境因子，且均与鬼臼毒素含量呈显著负相关。进一步通径分析表明，3个主导因子对鬼臼毒素含量的影响程度依次为：年均温>年均日照时数>总氮含量。研究结果表明，在桃儿七人工栽培中可通过适当低温、缩短日照时间、减施氮肥等措施来调控桃儿七鬼臼毒素含量。

关键词: 驱动因子, 土壤因子, 细菌群落, 季节动态, 铜尾矿库

Abstract: To explore the relationships between podophyllotoxin content in Sinopodophyllum hexandrum and environmental factors and to screen the leading affecting factor, the samples of rhizosphere soil and underground parts were collected from six populations of S. hexandrum in Gansu. The podophyllotoxin contents of underground parts and 14 soil factors including moisture, pH, organic matter, total nitrogen, available phosphorus, available potassium, available iron, available copper, available manganese, available magnesium, total iron, total copper, total manganese, and total magnesium were determined. The correlations between podophyllotoxin contents in underground parts and soil factors, elevation and climate factors (annual temperature, annual rainfall, annual sunshine hours, annual maximum temperature, and annual minimum temperature) were analyzed by stepwise regression analysis and path analysis. The results showed that significant differences in podophyllotoxin contents existed among six populations and were relatively consistent within populations, basically with normal distributions. Stepwise regression analysis revealed a significant negative correlation between podophyllotoxin content and annual temperature, annual sunshine hours and total nitrogen in soil, which indicated that the three factors play a predominant role in affecting the podophyllotoxin content in S. hexandrum. Path analysis further revealed that the degree of effect of each factor on the podophyllotoxin content decreased in order of annual temperature, annual sunshine hours, and total nitrogen. These results indicated that appropriate low temperature, shortened sunshine time and decreased nitrogen fertilization could improve the podophyllotoxin content in cultivated S. hexandrum.

Key words: bacterial community, edaphic factor, driving force., seasonal dynamic, copper mine tailings

郭琪1,2,张军1,2,王沛雅1,2,巩晓芳1,2,彭轶楠1,2,杨晖1,2*,杜维波1,2. 甘肃不同居群桃儿七\[Sinopodophyllum hexandrum (Royle) Ying\]鬼臼毒素含量与环境因子的相关性[J]. 生态学杂志.

GUO Qi1,2, ZHANG Jun1,2, WANG Pei-ya1,2, GONG Xiao-fang1,2, PENG Yi-nan1,2, YANG Hui1,2*, DU Wei-bo1,2. Correlation between podophyllotoxin content in Sinopodophyllum hexandrum (Royle) Ying from different populations in Gansu Province and environmental factors.[J]. cje.

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