colletotrichum species are associated with citrus plants as pathogens, saprobes and endophytes. according to the most recent multigene phylogenetic analysis, a lot of changes were happened in the taxonomy and species delimitation in the genus colletotrichum. in this investigation, 292 colletotrichum isolates were obtained from leaves, fruits and stems of citrus species at golestan, mazandaran, ...

haplothrips zabolius sp. n. is described from two plant species, cynodon dactylon (poaceae) and plantago lanceolata (plantaginaceae) from the southeast of iran. the new species is apparently close to some grass-living haplothrips species: h. aculeatus (fabricius), h. eragrostidis priesner and h. hukkineni priesner. most specimens of the new species have only one sense cone on the antennal segme...

the anamorphic fungus genus periconia is worldwide in distribution and causes foliar disease on plants mostly in tropical and subtropical regions. this study presents the description and illustration of p. palmivora discovered on leaves of phoenix dactylifera (palmae/arecaceae) from terai forest region of uttar pradesh, india. the taxonomic determination was based on morphological characteristi...

background : haemonchosis has a negative effect on the farming industry throughout the world, especially in the tropic and sub-tropic countries. the present study was carried out to differentiate haemonchus species from its main hosts in iran, including sheep, goat and camel.   methods: the identification took place based on the morphometrics of the spic-ules and molecular characters. two hundr...

during 2000-2001, soil pythium species were studied in fars province. soil samples werecollected from various parts of the province (abadeh, bajgah, bayza, borazjan, darab, estahban, fasa,khafr, sepidan, shiraz, moharloo, and zarghan). isolates were recovered from soil by baiting. specieswere identified based on morphological characters of sexual and asexual organs, growth rate at differenttemp...

samples from five sturgeon species including persian sturgeon (acipenser persicus), russian sturgeon (a. gueldenstaedti), great sturgeon (huso huso),ship sturgeon (a. nudi-ventris) and stellate sturgeon (a. stellatus) were collected from the south caspian sea. dna was extracted from the fins, eggs and skeleton muscle of the five species. rapd markers were used for identifying different kinds of...