數種土壤真菌對嘉磷塞忍受性之研究

Study on the Tolerance of Some Soil Fungi to Glyphosate

胡寶元(Bau-Yuan Hu) ； 謝煥儒(Huann-Ju Hsieh) ； 姚瑞禎(Jui-Chen Yao) ； 傅春旭(Chuen-Hsu Fu)

《國立臺灣大學生物資源暨農學院實驗林研究報告》 19卷1期 (2005/03) Pp. 17-23

https://doi.org/10.6542/EFNTU.200503_19(1).0002

摘要

Glyphosate is the most commonly used herbicide in Taiwan forest nursery Totally 1337 isolates of soil fungi were isolated from forest nursery soils that were applied by glyphosate Fifteen species were identified from these 1337 isolates, viz. Aspergtllus niger, Chaetomium aureum, C. globosum, Cladosporium sp., Fusarium solani, Fusarium sp., Mucor sp., Penicilium sp., Pythium spinosum, P. splendens, Rhizopus sp., Rhizoctonia solani, Sclerotium rolfsiii, Scopulariopsis sp. and Trichoderma harzianum. Eight of the isolated soil fungi species were cultured on PDA with different concentration of glyphosate from 0 mM to 120 mM When the glyphosate concentration changed from 1 mM to 24 Mm, the mycelial relative growth rate of C. aureum and F. solani was significantly higher than that of C. globosum, P. sptnosum, P. splendens, R. solani, S. rolfsii and T. harztanum on mycelium growth rate When glyphosate was applied, C. aureum produced red secretion, which is absent in C globosum. We suggest that C. aureum might increase its tolerance to glyphosate by producing the red secretion.

關鍵字

嘉磷塞 ； Chaetomium aureum ； C. globosum ； Fusarium solani ； Pythium spinosum ； Pythium splendens ； Rhizoctonia solani ； Sclerotium rolfsii ； Trichoderma harzianum ； 忍受性

並列摘要

Glyphosate is the most commonly used herbicide in Taiwan forest nursery Totally 1337 isolates of soil fungi were isolated from forest nursery soils that were applied by glyphosate Fifteen species were identified from these 1337 isolates, viz. Aspergtllus niger, Chaetomium aureum, C. globosum, Cladosporium sp., Fusarium solani, Fusarium sp., Mucor sp., Penicilium sp., Pythium spinosum, P. splendens, Rhizopus sp., Rhizoctonia solani, Sclerotium rolfsiii, Scopulariopsis sp. and Trichoderma harzianum. Eight of the isolated soil fungi species were cultured on PDA with different concentration of glyphosate from 0 mM to 120 mM When the glyphosate concentration changed from 1 mM to 24 Mm, the mycelial relative growth rate of C. aureum and F. solani was significantly higher than that of C. globosum, P. sptnosum, P. splendens, R. solani, S. rolfsii and T. harztanum on mycelium growth rate When glyphosate was applied, C. aureum produced red secretion, which is absent in C globosum. We suggest that C. aureum might increase its tolerance to glyphosate by producing the red secretion.

並列關鍵字

glyphosate ； Chaetomium aureum ； C. globosum ； Fusarium solani ； Pythium spinosum ； Pythium splendens ； Rhizoctonia solani ； Sclerotium rolfsii ； Trichoderma harzianum ； tolerance