Evaluation of Streptomyces saraciticas as Soil Amendments for Controlling Soil-Borne Plant Pathogens.

Soil-borne diseases are the major problems in mono cropping. A mixture (designated LTM-m) composed of agricultural wastes and a beneficial microorganism Streptomyces saraceticus SS31 was used as soil amendments to evaluate its efficacy for managing Rhizoctonia solani and root knot nematode (Meloidogyne incognita). In vitro antagonistic assays revealed that SS31 spore suspensions and culture broths effectively suppressed the growth of R.

Glycoside Hydrolase (GH) 45 and 5 Candidate Cellulases in Aphelenchoides besseyi Isolated from Bird's-Nest Fern.

Five Aphelenchoides besseyi isolates collected from bird's-nest ferns or rice possess different parasitic capacities in bird's-nest fern. Two different glycoside hydrolase (GH) 45 genes were identified in the fern isolates, and only one was found in the rice isolates. A Abe GH5-1 gene containing an SCP-like family domain was found only in the fern isolates.

Aphelenchoides bicaudatus from Ornamental Nurseries in Taiwan and Its Relationship with Some Agricultural Crops.

Aphelenchoides bicaudatus nematodes were identified in planting materials and water samples from 35 floral ornamental nurseries in Taiwan. A pure line of the nematode was established from the bulk samples collected, and the nematode was identified as A. bicaudatus on the basis of morphometric data and the 18S gene sequence (GU984233).