فهرست مطالب

Mycologia Iranica
Volume:1 Issue: 1, Winter and Spring 2014

  • تاریخ انتشار: 1393/10/28
  • تعداد عناوین: 7
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  • W. Gams Pages 1-5
    Important changes brought about by the Melbourne International Code of Nomenclature for Algae,FungiandPlantsare briefly reviewed concerning a clarification of the spelling and typification of sanctioned fungal names, the recognition of electronic publication for the validity of nomenclatural novelties, permission to use English diagnoses or descriptions for their valid publication, and the requirement of registration of such novelties with an identifier number issued by a registration repository. The most drastic change, the abolishment of the former Article 59 permitting a dual nomenclature for pleomorphic fungi, is outlined in more detail. From 2013 onwards the introduction of two names for different morphs of a fungus will render both names invalid. In the choice between names applied to anamorphs and teleomorphs priority would have free play. To avoid countless ensuing name changes, the previous rule-determined system of nomenclature is being replaced by a committee-determined list-based nomenclature. Suggestions for reducing the necessary name changes to a minimum have been proposed.
    Keywords: taxonomy, phylogeny, classification
  • V. Taheriyan, S. A. Khodaparast, S. A. Hashemi Pages 7-11
    This study was carried out to continue identifying unknown and less known anamorphic fungi from Guilan province. Plant materials with fungal signs and symptoms were collected and examined to identify causal agents. Four species viz. Alternariacalendulae (on Calendulaofficinalis), Pseudocercosporasordida(on Campsis sp.), Thedgonia ligustrina (on Ligustrum vulgare) and Zygosporium oscheoides (on decaying leaves of Bilbergia sp., Monsteradeliciosa, and stem of Asparagus sp.) are reported as new to Iranian mycobiota.
    Keywords: mitosporic fungi, Pseudocercospora, Alternaria, Zygosporium
  • M. R. Asef Pages 13-18
    This study is a review on the genus Helvella (Pezizales, Helvellaceae) in Iran. Study on samples deposited in Iran fungal herbarium along with the fresh materials collected by the author revealed that seven species of Helvella, H. acetabulum, H. atra, H. crispa, H. elastica, H. ephippium, H. lacunosa and H. leucopus (as H. monachella) have already been reported from Iran. Three other species viz, H. costifera, H. latispora and H. leucomelaena are reported newly for Iran. Reidentification of specimen named as H. cf. pezizoides showed it is belong to H. ephippium. Short description and photographs of the new records along with distribution map and fruiting frequency of Iranian species are provided. Analyzes of collection time of about 70 specimens showed that all of the species reported from Iran, have been collected from North and North-West of country and most of the ascocarps are found in autumn, last summer and fall (October). An identification key to the Helvella species collected in Iran is presented.
    Keywords: Ascomycetes, Helvellaceae, Leptopodia
  • M. Ebadi, H. Riahi, R. Zare Pages 19-26
    In order to determine genetic variability among 33 isolates of Fusarium semitectum, morpho- logical and molecular studies were carried out. Isolates from different paddy fields in the north of Iran were separated from each other in four morphotype groups. The isolates showed a high level of variation in aerial mycelium, color of colony, number of septa and growth rate on potato dextrose agar (PDA). Comparison between morphological and molecular methods revealed that in some cases, the groupings of isolates based on morphological method was consistent with molecular groupings with a few exceptions. The results indicate that RAPD-PCR and REP-PCR could be used for monitoring intraspecific genetic variability within F. semitectum.
    Keywords: morphology, DNA Fingerprinting, variation, Polymorphism
  • S. A. Hashemi, S. A. Khodaparast, S. A. Elahinia, R. Zare, M. Mousakhah Pages 27-33
    During 2011, twigs, leaves and fruits of symptomatic hosts containing Fusicladium species from Guilan, Mazandaran, Qazvin and Ardabil provinces were sampled and examined. Five species including F. carpophilum, F. fraxini, F. oleagineum, F. pomi and F. pyrorum were identified based on morphological data. Of these, F. carpophilum and F. fraxini are identified as new records for the mycobiota of Iran. Fraxinus sp., Prunus persica var. nectarina, Pyracantha sp., red apple cultivar of Malus pumila and Khoj (local variety of Pyrus communis in Guilan province) are identified as new hosts for the genus Fusicladium in Iran. Cultures of F. fraxini, F. pomi and F. pyrorum are deposited at fungal culture collection of Iranian Research Institute of Plant Protection. A brief description and illustration and a key to Fusicladium species reported from Iran are provided.
    Keywords: Fusicladium carpophilum, Fusicladium fraxini, scab, Spilocaea, Venturia
  • S. Leylaie, S. K. Sabbagh, M. A. Tajik Ghanbari Pages 35-42
    The expression of endoglucanase gene and protein profile belonging to two fungal species, Penicillium oxalicum 1SMS and Trichoderma viride 156MS with high cellulase enzyme activity, was investigated. Fungal isolates were cultured on inducer CMC medium and then the amount of released sugar and protein were assayed every three days for a month, using arsenate molybdatereagent and Bradford method, respectively. Detection of endoglucanase gene was performed by using specific primers. Expressed cDNA fragments in two isolates revealed a size of 1380 bp to 1434 bp length. The cDNAs were sequenced and queried in BLASTN and TBLASTX search against eg1 genes from other fungi. These sequences showed 98% homology to eg1 gene deposited in databases. SDS-PAGE pattern of protein separation revealed one protein band for each isolate having a molecular weight of 49.786 and 48.339 kDa with 487 and 460 amino acids. Bioinformatics analysis revealed glycosyl hydrolase domains, a cellulase banding domain and 6 PROSITEs for both proteins. One ORF in each gene region was determined for each species. The results indicated that carboxy methyl cellulose is able to induce expression of eg1, following endogluconase enzyme production.
    Keywords: β-1, 4-endoglucanase, eg1 gene, sequence homology, bioinformatics analysis, Prosite
  • J. Abdollahzadeh, F. Hosseini, A. Javadi Pages 43-51
    A large collection of Botryosphaeriaceae isolates obtained from fruit and forest trees with fruit rot, canker and dieback disease symptoms in northern provinces of the country were examined in this study. Based on morphology and sequence data (ITS and EF1-α), two species, Diplodia mutila and Spencermartinsia viticola are illustrated and described as new records for Iran mycobiota. Furthermore, D. sapinea morphotype A is determined here for the first time from Iran.
    Keywords: Diplodia, Spencermartinsia, taxonomy, phylogeny