Saadi Karami; Mohammad Javan Nikkhah; Khalil-Berdi Fotouhifar; Vahid Rahjoo; Abdollah Ahmadpour; Amin Alidadi
Abstract
In order to study the Bipolaris and Curvularia species associated with corn, sorghum and sugarcane, sampeling were performed from different regions of Iran (including Alborz, Ardabil, Fars, Gilan, Golestan, Khuzestan, Mazandaran and Zanjan provinces) during the summer of 2011 and 2012. Fungal species ...
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In order to study the Bipolaris and Curvularia species associated with corn, sorghum and sugarcane, sampeling were performed from different regions of Iran (including Alborz, Ardabil, Fars, Gilan, Golestan, Khuzestan, Mazandaran and Zanjan provinces) during the summer of 2011 and 2012. Fungal species were identified based on morphological features and molecular data of ITS regions of ribosomal DNA. Eleven species including Viz. Bipolaris cynodontis (48 isolates), B. sorghicola (16 isolates), B. maydis (17 isolates), B. sorokiniana (seven isolates), B. bicolor (four isolates) and B. oryzae (two isolates), Curvularia spicifera (19 isolates), C. papendorfii (ten isolates), C. ellisii (two isolates), and C. hawaiiensis (one isolate) were identified. Pathogenicity test of the species were performed on four to six leaf stage of corn, sorghum and sugarcane seedlings. Finally, pathogenicity of B. maydis, B. sorokiniana and B. oryzae on corn and B. sorghicola on sorghum seedlings were confirmed. This is the first report of occurrence and pathogenicity of B. sorokiniana and B. oryzae on corn leaves in Iran.
Bahram Sharifnabi; Fariba Ghaderi; Nahid Javadi
Abstract
Almond (Prunus amygdalus L.) is a deciduous tree in the Rosaceae family and is grown mostly for its edible seed. It is one of the most popular nuts on a worldwide basis and widely grown in Iran in Isfahan and Chaharmahal and Bakhtiari provinces. Root and crown rot causal agents which are caused by several ...
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Almond (Prunus amygdalus L.) is a deciduous tree in the Rosaceae family and is grown mostly for its edible seed. It is one of the most popular nuts on a worldwide basis and widely grown in Iran in Isfahan and Chaharmahal and Bakhtiari provinces. Root and crown rot causal agents which are caused by several pathogens were studied. According to morphological characteristics, 53 isolates were identified as Phytopythium litorale (13 isolates), Phytophthora cactorum (19 isolates), and P. crytogea (21 isolates). Out of 53 isolates, 25 isolates were selected for molecular studies. Specific primer pairs of BPhycacL87FRG (F)/BPhycacR87RRG and Cryp1(F)/Cryp2 were used to confirm morphological identification of species. The reaction of crown and root of 8-month-old almondcultivars Sangi, Rabee, Shahrood12 and GF677 to virulent isolates of P. cactorum, P. cryptogea,and Pp. litorale was evaluated under greenhouse conditions. Comparison of pathogenicity means revealed that there are significant differences among P. cactorum, P. cryptogea,and Pp. litorale isolates.The results alsoshowedthat Pp. litorale was more aggressive than P. cactorum. On all tested almond cultivars, disease severity percentage showed that Sangi is the most susceptible cultivar and GF677 showed the least susceptibility. In this study, phylogenetic relationships of some Phytophthora and Phytopythium species based on sequencing of the rDNA-ITS region is provided. This is the first report of isolation and pathogenicity of Phytopythium litorale from almond orchards in Iran.
Seyed Yousef Behrooz; Mohammad Salari; Mahdi Pirnia; Seyed Kazem Sabbagh
Abstract
In order to identify Ramularia species on medicinal plants, specimens with leaf spot symptom from different localities in Kohgiluyeh and Boyerahmad Province were obtained and morphologically examined during spring-autumn 2012-13. Based on morphological characteristics of conidiophore and conidium, nine ...
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In order to identify Ramularia species on medicinal plants, specimens with leaf spot symptom from different localities in Kohgiluyeh and Boyerahmad Province were obtained and morphologically examined during spring-autumn 2012-13. Based on morphological characteristics of conidiophore and conidium, nine species of Ramularia were identified. Among these, R. veronicae and R. winteri are new records for mycobiota of Iran. Furthermore, this is the first record of Ramularia species including R. beccabungae, R. marrubii and R. variabilis on Veronicaanagallis-aquatica, Sideritis montana and Verbascum sinuatum in Iran respectively.
Kosar Sharifi; Seyed Akbar Khodaparast; Sedigheh Mousanejzhad
Abstract
Many powdery mildew fungi occur as anamorphic state on different host plants in Guilan province, Iran. The species have usually been identified as Oidium spp. In order to identify teleomorphic species using anamorphic characteristics and host range, several infected plant specimens were collected from ...
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Many powdery mildew fungi occur as anamorphic state on different host plants in Guilan province, Iran. The species have usually been identified as Oidium spp. In order to identify teleomorphic species using anamorphic characteristics and host range, several infected plant specimens were collected from around Guilan province during 2004-2011. Based upon the results of the study 25 species were collected and identified. The identified species are as follows: Erysiphe cf. alphitoides on Quercus sp., Erysiphe australiana on Lagerstroemia indica, Erysiphe begoniicola on Begonia multiflora, Erysiphe betae on Dysphania ambrosioides, Erysiphe convolvuli on Convolvolus sp., Erysiphe euonymicola on Euonymus japonicus, Erysiphe heraclei on Petroselinum hortense, Erysiphe polygoni on Polygonum persicaria, Erysiphe platani on Platanus orientalis, Erysiphe quericicola on Quercus sp., Erysiphe sesbaniae on Sesbania punicea, Golovinomyces ambrosiae on Zinnia sp. and Dahlia sp., Golovinomyces artemisiae on Artemisia annua, Golovinomyces biocellatus on Mentha sp., Golovinomyces montagnei on Silybum marianum, Golovinomyces depressus on Arctium lappa, Golovinomyces orontii on Nicotiana tabacum, Golovinomycescf. orontii on Fraxinus sp., Golovinomyces sonchicola on Sonchus sp., Podosphaera aphanis on Agrimonia eupatoria, Podosphaera euphorbiae-hirtae on Pedilianthus sp., Podosphaera fugax on Geranium dissectum, Podosphaera xanthiis.l. on Dichrocephala sp., Gerbera sp., Physalis alkekengi and Vigna unguiculata, Podosphaera pannosa on Rosa sp.,Sawadaea bicornis on Acer sp. Among The identified species Erysiphe australiana and Podosphaera euphorbiae-hirtaeare recorded for the first time from Iran.Moreover, Erysiphe alphitoides on Castanea sativa, Erysiphe betae on Dysphania ambrosioides, Erysiphe heraclei on Petroselinum hortense, Podosphaera xanthiis. lat. on Dichrocephala sp., Gerbera sp., Physalis alkekengi and Vigna unguiculata, Golovinomyces ambrosiae on Zinnia sp. and Dahlia sp., Erysiphe heraclei on Petroselinum hortense, Golovinomyces cf. orontii on Fraxinus sp.are newly reported on these host plants from Iran. In addition, Golovinomyces montagnei, Erysiphe begoniicola and Erysiphe euonymicola are accepted as correct nomenclature for causal agents of powdery mildew on Silybum marianum, Begonia and Euonymus respectively.
Giti Ghazi Soltani; Shahzad irani Pour; Ebrahim Ebrahimi
Volume 41, Issue 2 , March 2011, , Pages 179-186
Abstract
Sphecidae is a large and important family of Hymenoptera. All members of this family are presocial predators of other arthropods and play a role in the control of pest complex. In this study, sphecids were collected from East Azerbaijan province using sweep net, Malaise traps and yellow pan traps. Twenty ...
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Sphecidae is a large and important family of Hymenoptera. All members of this family are presocial predators of other arthropods and play a role in the control of pest complex. In this study, sphecids were collected from East Azerbaijan province using sweep net, Malaise traps and yellow pan traps. Twenty species of the family Sphecidae (Hymenoptera), belonging to subfamilies Pemphredoninae, Astatinae, Larrinae, Nyssoninae and Philanthinae, were collected from the province. The two species Psenulus pallipes Panzer and Cerceris rybyensis (Linnaeus) along with the genus Diploplectron Fox are new records for Iranian fauna. An identification key has been given for the genera and species, illustrated by figures and photographs.
SeyedAkbar Khodaparast; Fatemeh Fathi; Mehrdad Abbasi; MohammadReza Mirzaei
Volume 40, Issue 2 , February 2010
Abstract
In the framework of a study on the powdery mildew fungi in Iran, several infected plant specimens were collected from around the country during 2001-2009. Based on the results of the study Erysiphe quercicola on Quercus sp. and E. malvae on Malva sp., Golovinomyces ambrosiae on Helianthus spp., Golovinomyces ...
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In the framework of a study on the powdery mildew fungi in Iran, several infected plant specimens were collected from around the country during 2001-2009. Based on the results of the study Erysiphe quercicola on Quercus sp. and E. malvae on Malva sp., Golovinomyces ambrosiae on Helianthus spp., Golovinomyces fischeri on Senecio glaucus, are the newly reported for Iranian mycobiota. In addition, some specimens belonging to Golovinomyces cichoracearum s.l. were assessed. According to the new species concept, concerning these taxa, Golovinomyces cichoracearum s.s. prevalent in the country was redescribd, and G. sonchicola on Sonchus spp. is recorded for the first time, although already reported from Iran under the initials of G. cichoracearum s.l.. Moreover, some taxa powdery mildew fungi are reported on new hosts in Iran as follows: Golovinomyces cynoglossii on Symphytum asperum, Leveillula taurica on Daphne mucronata, Podosphaera leucotricha on Photinia serrutata.
