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Showing 3 results for ABDOLLAHI

year 2, Issue 1 (3-2013)

Most nematodes are free-living. They live in oceans, fresh waters and soil and feed on bacteria, fungi and other nematodes. Some are predators and some are parasites of plants and animals. Some of the latter group are insect-associated. There are different types of relations between insects and nematodes. Beneficial nematodes that cause disease in insects are referred to as “entomopathogenic” and have the ability to kill the insects. Entomopathogenic nematodes from the genera Stein‌ernema and Heterorhabditis have proven to be the most effective as biological control organisms. Only the infective juvenile stage of entomopathogenic nematodes will survive in the soil, find and penetrate insect pests. In this paper, different types of association between nematode and insect with emphazing on entomopathogenic nematode species have been reviewed.
Mohammad ABDOLLAHI, Negin Akramipoor,
year 3, Issue 2 (9-2014)

Plant-parasitic nematodes are one of the most important pests worldwide and cause considerable economic loss to many of agricultural products. Some of soil inhabited nematodes are affected by some of antagonistic bacteria, so they can be used in biological control. Nematodes can be affected by bacteria in different ways such as direct suppression, promotion of plant growth, and facilitation of rhizosphere colonization. In overall, regarding to effect of soil inhabits bacteria on nematodes they can be classified as toxin producing, antibiotic producing and enzyme producing as well as plant growth promoting groups. Based on the recent researches, bacteria are divided to six groups including: parasitic bacteria (nematophagous bacteria), opportunistic parasitic bacteria, rhizobacteria, endophytic bacteria, symbionts of entomopathogenic nematodes and cry protein-forming bacteria. Combination of bacteria with some other antagonistic microorganisms was successful in control of plant parasitic nematodes.
Mohammad ABDOLLAHI, Ehsan Fatemi,
year 6, Issue 1 (3-2017)

Abdollahi M. & Fatemi E. 2017. Review of  new approaches  in  nematodes  taxonomy. Plant Pathology Science 6(1): 1-11.

Use of advanced methods in nematode taxonomy and biodiversity is growing rapidly. Because the morphological and morphometric characterstics of nematodes are not enough for accurate nematode identification, the modern techniques were estsblished to terminate the taxonomic challenging. According to the progress achieved, some new approaches such as molecular studies have enhanced the nematode diagnosis. Numbers of molecular techniques like RAPD, RFLP, AFLP, ISSR and SCAR have been established to give confirmation to traditional detection, especially for identification of undescribed species. In this review, every one of each new technique is discussed.

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