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Articles by G.H. Shahidi Bonjar
Total Records ( 2 ) for G.H. Shahidi Bonjar
  G.H. Shahidi Bonjar
  Plants used in folkloric medicine of Iranian native people were collected from Southeast regions of Iran. Methanol extracts were prepared and evaluated in a test against two strains of Escherichia coli. From 180 plant species in 72 families, 17 samples in 11 families showed anti-E. coli activity. At 20 mg ml-1 concentration, the most active plants with diameter of inhibition zones of 12 mm or more on both bacterial strains were Lawsonia inermis, Cinnamomum zeylanicum and Dianthus caryophyllus. Trigonella foenum-graecum, Cuminum cyminum, Alhagi maurorum, Apium graveolens, Colchicum luteum, Origanum majorana, Calendula officinalis, Nepeta racemosa and Coriandrum sativum were active only against E. coli (PTCC No. 1330) and Camellia sinensis and Anthemis nobilis were active only against E. coli (PTCC No. 1338). The lowest minimum inhibitory concentration found in Trigonella foenum-graecum as 0.46 mg ml-1. All of the active extracts were well stable at room temperature in DMSO: methanol (1:1, v/v) solvent and dry state up to 18 months and did not show any reduction of activity against the sensitive bacterial strains.
  G.H. Shahidi Bonjar , H. Shahsevand Hassani , N. Pakgohar and B. Barkhordar
  Seed galls caused by Anguina tritici [Syn. Anguillulina tritici (Steinb.)] and covered smut caused by Tilletia foetida (Wallr.) are two important wheat pathogens worldwide. Presence of resistance to these pathogens were investigated in three Hexaploid Amphiploids of Triticale (AABBRR, 2n= 6x= 42), Tritipyrum (AABBEbEb, 2n= 6x= 42) and bread wheat (AABBDD, 2n= 6x= 42). Macaroni wheat (AABB, 2n= 4x= 28) and a double haploid wheat (AABBDD, 2n= 6x= 42) were included as controls. To gall nematode, line 4115 of Triticale, Tritipyrum lines of (Maconum/Thinopyrum bessarabicum x Creso/Thinopyrum bessarabicum, F4), (Karim/Th. bessarabicum x Creso/Th. bessarabicum , F3, F5), double haploid variety (Omid, F3), Macaroni wheat (Yavaros) and bread wheat varieties (Falat, Atila and Omid) were resistant and, Triticale (lines of 4115 and M45), Tritipyrum (Stewart/Th. bessarabicum x Creso/Th. bessarabicum,F4) and bread wheat (Roshan) were susceptible. To covered smut, line 4116 of Triticale, three lines of Tritipyrum (Stewart/ Th. bessarabicum x Creso/Th. bessarabicum,F4), (Karim/Th. bessarabicum x Creso/Th. bessarabicum, F3), (Macoum/Th. bessarabicum x Creso/Th. bessarabicum, F4) and double haploid (Omid, F3) were resistant and bread wheat cultivars (Falat, Atila and Roshan), Macaroni wheat (Yavaros), Triticales (lines of 4115 and M45) and one Tritipyrum (Karim/Th. bessarabicum x Creso/Th. bessarabicum, F4), were susceptible. It is conclusive that there is more genetic diversity in new lines of Triticale and Tritipyrum in comparison with that of Macaroni and bread wheat lines. Resistant lines found for these two diseases in this study, could be proper sources for producing genetically resistant and transgenic lines of present commercial wheat varieties. This the first report of resistance of the mentioned lines to A. tritici and T. caries in the first ever trial in Iran.
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