Succinate dehydrogenase activity of external and internal hyphae of a vesicular-arbuscular mycorrhizal fungus, Glomus mosseae (Nicol. & Gerd.) Gerdmann and Trappe, during mycorrhizal colonization of roots of leek (Allium porrum L.), as revealed by in situ histochemical staining

Mycorrhiza ◽  
1993 ◽  
Vol 4 (2) ◽  
pp. 59-62 ◽  
Author(s):  
Masanori Saito ◽  
David P. Stribley ◽  
Christine M. Hepper
1985 ◽  
Vol 63 (9) ◽  
pp. 1673-1675 ◽  
Author(s):  
K. Parvathi ◽  
K. Venkateswarlu ◽  
A. S. Rao

The effects of four commonly used commercial formulations of contact fungicides (pentachloronitrobenzene, captan, captafol, and mancozeb) and gypsum on the vesicular–arbuscular mycorrhizal development of Glomus mosseae (Nic. & Gerd.) Gerd. & Trappe in groundnut were studied. Drenching the soil with pentachloronitrobenzene or gypsum at the time of seed sowing significantly inhibited the colonization and sporulation by the fungus; the other fungicides were less toxic. Captan, a widely used fungicide, was least inhibitory on development of the fungus. Pentachloronitrobenzene, gypsum, and captafol treatments significantly reduced the plant biomass.


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