effect of mycoparasitic fungi on the development of sphaerotheca fusca in melon leaves. | we evaluated the possibilities of exploitation of several mycoparasitic fungi in the biocontrol of cucurbit powdery mildew (sphaerotheca fusca) in melon greenhouses. to simplify the screening, an in vitro biological control test on detached leaves of melon has been used and a detailed microscopic analysis of the interactions between mycoparasites and s. fusca conducted. in this context, the effect of mycoparasitic fungi on the formation of infection structures of s. fusca such as haustoria, coni ... | 2003 | 12735245 |
fungal diversity in composting process of pig manure and mushroom cultural waste based on partial sequence of large subunit rrna. | fungal diversity during composting was investigated by culture-independent rdna sequence analysis. composting was carried out with pig manure and mushroom cultural waste using a field-scale composter (hazaka system), and samples were collected at various stages. based on partial sequence analysis of large subunit (lsu) ribosomal rna (rrna) and sequence identity values, a total of 12 different fungal species were found at six sampling sites; geotrichum sp., debaryomyces hansenii, monographella ni ... | 2009 | 19734710 |
role of a ferredoxin gene cotranscribed with the nifhdk operon in n(2) fixation and nitrogenase "switch-off" of azoarcus sp. strain bh72. | the endophytic diazotroph azoarcus sp. strain bh72 is capable of infecting rice roots and of expressing the nitrogenase (nif) genes there. in order to study the genetic background for nitrogen fixation in strain bh72, the structural genes of nitrogenase (nifhdk) were cloned and sequenced. the sequence analysis revealed an unusual gene organization: downstream of nifhdk, a ferredoxin gene (fdxn; 59% amino acid sequence identity to r. capsulatus fdxn) and open reading frames showing 52 and 36% ami ... | 2001 | 11371540 |