during 2007 – 2008 different fruit gardens in shiraz (fars province, iran) were surveyed for samples being collected from infected apple, pear and quince trees. symptoms of the infected trees included water soaking of infected tissue, wilt and tissue necrosis, scorched and blackend of blossom bracts or young shoots. a total of 47 strains were isolated from infected trees using na medium. on the...

In recent years strains previously grouped within Cryptococcus neoformans have been divided into two species C. neoformans and C. gattii, with Cryptococcus neoformans comprising serotypes A, D, and AD and C. gattii comprising serotypes B and C. Cryptococcus neoformans have also been subdivided into two varieties C. neoformans var. grubii, serotype A, and C. neoformans var. neoformans, serotype ...

abstract bacterial blight of rice, causes by xanthomonas oryzae pv. oryzae , is one of the most devastating disease of rice after blast disease. during the spring and summer of 2005-2006 different paddy fields in guilan province (roodsar, langrud, lahijan, rasht, anzali, fooman, soomeesara and roodbar) were surveyed and samples were collected from rices showing blight and yellowing in leaves. t...

Given the increasing prevalence of cryptococcosis caused by Cryptococcus gattii (serotypes B and C) strains, there is a need for rapid and reliable tests that discriminate C. gattii from Cryptococcus neoformans (serotypes A, D, and AD). Seventy-two C. neoformans strains, sixty-seven C. gattii strains, and five Candida albicans strains were analyzed for their ability to grow and produce pigment ...

Objective. The objective of this study was to investigate changes in pigment, spectral transmission and element content of chicken eggshells with different intensities of pink pigment during the incubation period. We also investigated the effects of the region (small pole, equator and large pole) and pink pigment intensity of the chicken eggshell on the percent transmission of light passing thr...

Abstract Bacterial Grain Rot caused by Burkholderia glumae is an important disease of rice. In South Sulawesi, this seed-borne pathogen has been detected in several places. There were some reports from the farmers regarding rice yield loss due to disease. This study aimed isolate and characterize morpho-physiologically bacterium causing grain rot main rice-producing areas Gowa Regency, Sulawesi...

Duerre, John A. (University of North Dakota, Grand Forks), and Patrick J. Buckley. Pigment production from tryptophan by an Achromobacter species. J. Bacteriol. 90:1686-1691. 1965.-A microorganism was isolated from the soil near the University of North Dakota. Biochemical and morphological characteristics indicated that this organism would best be classified as a member of the family Achromobac...

biological control of some plant diseases caused by rhizoctonia solani has been considered as an alternative to chemicals control. rhizobacterium burkholderia cepacia is of current interest as a successful biocontrol agent, and registered as a microbial pesticide by us environmental protection agency. several research works have suggested that nitrogen fixing is also a common feature of most st...

A high frequency of mutations affecting color production is characteristic of the HY strain of Serratia marcescens. After ultraviolet irradiation, mutants ranging from white, through pink and orange, to deep red shades darker than the wild type can be obtained (Labrum and Bunting, 1953). Many of the white and pink mutants emit diffusible substances which can be utilized by other color mutants g...