Biocontrol of economically important weed species through endophytic fungi isolated from Parthenium hysterophorus (Family: Asteraceae)

文献类型： 外文期刊

第一作者： Ahmad, Yaseen

作者： Ahmad, Yaseen;Ahmad, Muhammad Nauman;Zia, Afia;Alam, Syed Sartaj;Khan, Raja Asad Ali;Riaz, Muhammad

作者机构：

关键词： Fungal endophytes; Parthenium hysterophorus; Cultural filtrates; Weed control

期刊名称：EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL （ 影响因子：1.995； 五年影响因子：1.115 ）

ISSN： 1110-1768

年卷期： 2020 年 30 卷 1 期

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收录情况： SCI

摘要： Background Fungal endophytes produce a variety of secondary metabolites which can be explored for herbicidal activities. Parthenium is a very aggressive and fast-spreading weed in Pakistan. The endophytes of Parthenium made it superior over other weeds. Those endophytes can be isolated, identified, and incorporated in sustainable agriculture to biologically control other severe weeds. Main body The present study was conducted to isolate and identify the endophytic fungi from the roots of Parthenium hysterophorus (Family: Asteraceae) and evaluate their cultural filtrate against the growth of three selected weed species, i.e., Chenopodium album, Avena fatua, and Convolvulus arvensis. Moreover, pot experiments were conducted to evaluate the effects of cultural filtrates of these endophytic fungi against the germination, growth, and other physiological parameters (cellular contents, respiration, and cellular leakage) of the abovementioned three weed species. Three endophytic fungi, i.e., Alternaria, Aspergillus, and Drechslera spp., were isolated from the roots of P. hysterophorus. Among these endophytic fungi, cultural (hyphal) filtrate of Alternaria spp. exhibited the strongest phytotoxic effect, followed by Drechslera spp. and Aspergillus spp. against the selected weeds. Moreover, all the three endophytic fungi showed significant reduction in the germination as well as other physiological parameters of the weed species. Conclusion It is concluded that the utilization of endophytic fungi could be a non-chemical, effective, ecofriendly, and low-cost biological control method that can be used for the biomanagement of fast-spreading and aggressive weeds.

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