蟛蜞菊根分泌物的异种克生作用及初步分离

生态学杂志 ›› 1994, Vol. ›› Issue (1): 51-56.

蟛蜞菊根分泌物的异种克生作用及初步分离

曾任森¹, 林象联¹, 谭惠芬², 曾强²

1. 华南农业大学农业生态室;
2. 南开大学元素有机化学研究所

收稿日期:1993-05-03 修回日期:1993-11-08 出版日期:1994-02-10
基金资助:
南开大学元素有机化学国家重点实验室;国家自然基金

Allelopathic Effects and Preliminary Isolation of Root Exudates of Wedelia chinensis(Osb.)Merr

Zeng Rensen¹, Ling Xianglian¹, Tan Huifen², Zeng Qiang²

1. Agroecology Laboratory, South China Agricultural University Guangzhou 510642;
2. Institute of Elemento Organic Chemistry, Nankai University, Tianjin 300071

Received:1993-05-03 Revised:1993-11-08 Online:1994-02-10

摘要/Abstract

关键词: 镍, 安氏伪镖水蚤, 抑制性消减杂交, 铁蛋白

Abstract: Chinese Wedelia(Wedelia chinensis(Osb.)Merr.),a common garden herb species in South china,tends to form a pure community. Its root exudates collected by sand culture shows allelopathic effects on seedling growth of turnip(Raphanus sativus),rice(Oryza sativa).cucumber(Cucumis sativus)and mungbean(Phaseolus aureus).Theinhibitory concentrations of exudates vvere determined.The hydrophobic root exudates of W.chinensis,obsorbed by XAD-4 resin in hydroponic culture system,shows allelopathic effects on the seedling growth of barnyardgrass(Echinoloa crusgalli),lettuce(Laotuca sativa)nd trunip.By means of extraction using petroleum ether, chloroform and methanol,the exudates are separated into three portions:Ra(5.9%),Rb(74.5%)and Rc(19.6%).Rb,most inhibitory porticn,was isolated into 8 fractions by means of preparatory thin layer chromatography Fraction 1 and 32 were most inhibitory.

Key words: nickel, Pseudodiaptomous annandalei, suppression subtractive hybridization (SSH), ferritin.

曾任森, 林象联, 谭惠芬, 曾强. 蟛蜞菊根分泌物的异种克生作用及初步分离[J]. 生态学杂志, 1994, (1): 51-56.

Zeng Rensen, Ling Xianglian, Tan Huifen, Zeng Qiang. Allelopathic Effects and Preliminary Isolation of Root Exudates of Wedelia chinensis(Osb.)Merr[J]. cje, 1994, (1): 51-56.