Biochemical and Physiological Characterization of Colony Form Variants in Xenorhabdus spp. (Enterobacteriaceae)
نویسندگان
چکیده
منابع مشابه
Characterization of form variants of Xenorhabdus luminescens.
From Xenorhabdus luminescens XE-87.3 four variants were isolated. One, which produced a red pigment and antibiotics, was luminescent, and could take up dye from culture media, was considered the primary form (XE-red). A pink-pigmented variant (XE-pink) differed from the primary form only in pigmentation and uptake of dye. Of the two other variants, one produced a yellow pigment and fewer antibi...
متن کاملLysogeny and bacteriocinogeny in Xenorhabdus nematophilus and other Xenorhabdus spp.
Induction by mitomycin or high-temperature treatment resulted in the production of bacteriocins and phages in both phases of Xenorhabdus nematophilus A24, indicating lysogeny. Phage DNA purified from X. nematophilus A24 hybridized to several fragments of DraI-digested A24 chromosomal DNA, confirming that the phage genome was incorporated into the bacterial chromosome. Bacteriocins and phages we...
متن کاملPhysiological, Biochemical and Molecular Characterization of Azospirillum Spp. Isolated from Maize under Water Stress
This study was designed to isolate and characterize Azospirillum strains from maize (Zea mays L.) grown under wellwatered and water stressed conditions and to evaluate the ability of bacteria to produce plant growth promoting hormones like Indole Acetic Acid (IAA), Gibberellic Acid (GA), trans-Zeatin riboside (tzr) and abscisic acid (ABA). A total of eight strains of Azospirillum were isolated ...
متن کاملmolecular and physiological characterizations of floral scent production in rosa damascena mill.
گل محمدی (r. damascena mill.)مهمترین گونه ای است که در تولید گلاب، عطر و اسانس، در صنعت عطرسازی و دارویی کاربرد دارد. با وجود اهمیت عطر گل محمدی، پژوهش های مولکولی و بیوشیمیایی عطر گل این گونه هنوز در مراحل ابتدایی است. در این پژوهش، ویژگی های مولکولی و فیزیولوژیکی تولید عطر در گل محمدی در آزمایش های مختلف مورد بررسی قرار گرفتند. در آزمایش اول، پژوهشی به منظور بررسی تنوع شیمیایی اسانس میان 44 ت...
biochemical and physiological characterization of tree microalgae spp. as candidates for food supplement
with increasing world populations, production of cost-effective and proper nourishment sources that can rapidly produce large amounts of nutritional value are needed. microalgae are publicly used as nutrient supplement. in this research a screening of endemic potent microalgae was carried out. chlorella , scenedesmus and spirulina sp. were isolated and purified and cultivated in liquid proper m...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1988
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-134-3-751