Allelopathic effects of root exudates of grafted eggplants on Verticillium dahliae and their constituents' identification

	Allelopathic effects of root exudates of grafted eggplants on Verticillium dahliae and their constituents' identification
	Zhou, B. L.1; Yin, Y. L.1; Zhang, F. L.2; Ye, X. L.1
刊名	ALLELOPATHY JOURNAL
	2010-04-01
卷号	25 期号:2 页码:393-402
关键词	Allelochemicals Dibutyl Phthalate Gc/ms Grafted Eggplants Hexadecanoic Acid Root Exudates Tetradecanoic Acid Verticillium Dahliae Verticillium Wilt
ISSN号	0971-4693
英文摘要	We tested the occurrence and severity of Verticillium wilt in grafted eggplants. The root exudates of grafted eggplants were collected with root soaking method. Their constituents were determined by gas chromatography/mass spectrometry (GC/MS) and the effects of root exudates were evaluated on the mycelial growth of Verticillium dahliae. Dibutyl phthalate (DP), hexadecanoic acid (HA) and tetradecanoic acid (TA) detected in natural root exudates from eggplants were chosen to test their biological activities against Verticillium dahliae. The grafted eggplants showed less disease incidence of Verticillium wilt. With the development of plants, the quantity of V. dahliae in soil was lower in grafted eggplants than in non-grafted eggplant. The root exudates were more inhibitory to mycelial growth in grafted eggplants than in non-grafted eggplants. Grafting changed the constituents of the root exudates of eggplants. In root exudates of grafted eggplants, hydrocarbons, esters, alcohols, phenols, ketones, benzenes and amine were present, while, in non-grafted eggplants alcohols, benzenes and amine were absent. The compounds present in the root exudates were also found in soil extracts and also observed the similar trend in their contents. The inhibitory effects of DP on mycelial growth of V. dahliae increased at lower concentration, but was decreased at higher concentration. The inhibitory activities of HA and TA were decreased at lower concentration, but increased at higher concentration.
WOS研究方向	Agriculture
语种	英语
出版者	ALLELOPATHY JOURNAL
WOS记录号	WOS:000276570800008
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/121451]
专题	中国科学院沈阳应用生态研究所
通讯作者	Zhou, B. L.
作者单位	1.Shenyang Agr Univ, Coll Hort, Shenyang 110161, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, B. L.,Yin, Y. L.,Zhang, F. L.,et al. Allelopathic effects of root exudates of grafted eggplants on Verticillium dahliae and their constituents' identification[J]. ALLELOPATHY JOURNAL,2010,25(2):393-402.
APA	Zhou, B. L.,Yin, Y. L.,Zhang, F. L.,&Ye, X. L..(2010).Allelopathic effects of root exudates of grafted eggplants on Verticillium dahliae and their constituents' identification.ALLELOPATHY JOURNAL,25(2),393-402.
MLA	Zhou, B. L.,et al."Allelopathic effects of root exudates of grafted eggplants on Verticillium dahliae and their constituents' identification".ALLELOPATHY JOURNAL 25.2(2010):393-402.