نتایج جستجو برای: clavibacter

تعداد نتایج: 351  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - پژوهشکده کشاورزی 1389

: استان همدان به علت داشتن شرایط آب و هوایی مناسب یکی از مهم ترین مناطق کشت یونجه در ایران است. چندین آفت و بیماری عملکرد یونجه را دچار محدودیت کرده و سبب خسارت های زیادی می شود. یکی از بیماری های مهم این محصول، بیماری پژمردگی باکتریایی یونجه است. اهداف این تحقیق شناسایی عوامل این بیماری وتعیین تنوع ژنتیکی استرین های آن ها در استان همدان است. جهت انجام این تحقیق گیاهان بیمار دارای علائم پژمردگی...

Journal: :Journal of nematology 1993
A F Bird M H Ryder

Information on the effect of bacteria-feeding nematodes on bacterial populations in the soil is sparse. We have isolated, cultured, and microscopically examined bacteria and nematodes coexisting within an agricultural soil and have studied their feeding relationship. The bacterium Pseudomonas corrugata isolate 2140R is a biocontrol agent against the pathogenic fungus Gaeumannomyces graminis var...

Journal: :Marine Drugs 2008
R. F. Martins M. F. Ramos L. Herfindal J. A. Sousa K. Skærven V. M. Vasconcelos

Aqueous extracts and organic solvent extracts of isolated marine cyanobacteria strains were tested for antimicrobial activity against a fungus, Gram-positive and Gram-negative bacteria and for cytotoxic activity against primary rat hepatocytes and HL-60 cells. Antimicrobial activity was based on the agar diffusion assay. Cytotoxic activity was measured by apoptotic cell death scored by cell sur...

Journal: :Journal of basic microbiology 2005
Fernando E Vega Monica Pava-Ripoll Francisco Posada Jeffrey S Buyer

Eighty-seven culturable endophytic bacterial isolates in 19 genera were obtained from coffee plants collected in Colombia (n = 67), Hawaii (n = 17), and Mexico (n = 3). Both Gram positive and Gram negative bacteria were isolated, with a greater percentage (68%) being Gram negative. Tissues yielding bacterial endophytes included adult plant leaves, various parts of the berry (e.g., crown, pulp, ...

Journal: :International journal of systematic bacteriology 1996
J Mergaert A Schirmer L Hauben M Mau B Hoste K Kersters D Jendrossek J Swings

By using selective enrichment of polyhydroxyalkanoate-degrading bacteria and poly(3-hydroxyvalerate)-containing granules from Chromobacterium violaceum as the carbon source, 10 new Pseudomonas lemoignei strains were isolated; these strains were able to degrade poly(3-hydroxyvalerate), as well as poly(3-hydroxybutyrate), in vitro. The new isolates were characterized and identified by comparing t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید