DETERMINATION OF VEGETATIVE COMPATIBILITY GROUPS AND PATHOGENICITY IN POPULATION OF FUSARIUM OXYSPORUM F. SP. TUBEROSI FROM POTATO IN FARS AND KHUZESTAN PROVINCES

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RAH KHODAEI E.; FAROKHI NEZHAD R.

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Paper Information

Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:2006 | Volume:29 | Issue:2 Page(s): 43-53

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Title

DETERMINATION OF VEGETATIVE COMPATIBILITY GROUPS AND PATHOGENICITY IN POPULATION OF FUSARIUM OXYSPORUM F. SP. TUBEROSI FROM POTATO IN FARS AND KHUZESTAN PROVINCES

Author(s)

RAH KHODAEI E. | FAROKHI NEZHAD R. | Issue Writer Certificate

Keywords

FUSARIUMQ3

POTATOQ3

VEGETATIVE COMPATIBILITY GROUPSQ3

FARSQ3

KHUZESTANQ3

Abstract

F.oxysporum f.sp. tuberosi is the causal agent of wilt, dry rot and stem end rot in POTATO (Solanum tuberosom). This investigation was carried out during 1999-2000 growing seasons to determine pathogenicity and VEGETATIVE COMPATIBILITY GROUPS in population of F.o. f.sp. tuberosi. Diseased poptato plants were collected from major POTATO producing areas in FARS (Daryon, Kooshkemola, & Maharloo) & KHUZESTAN (Aghili) Provinces. Totally, 57 isolates of F.oxysporum were isolated from root, crown and stem of POTATO using acidified PDA and Nash & Snyder media. Fifty of these were selected for the study. Results of the pathogenicity tests showed that 98% of isolates were pathogenic to POTATO plants, causing wilt disease symptoms on Draga cultivar plants, alld about 20% of these isolates camed dry rot symptoms on tubers of the same cultivar. Collectively 607 nit mutants were generated on PDC containing 3% KClO3. nit mutant phenotypes were identified based on their growth on Basal Medium (BM) containing one of the four different nitrogen sources (nitrate, nitrite, ammonium and hypoxantine). Results showed that 78.9%, 12.5% and 8.6% of nit mutants were nit1, nit3 and NitM respectively. The complementation test showed that there was 8 vegetative compatible groups among the isolates. There was a relationship between VCGs and disease type. Groups A, B, D, E and F caused wilting but members of C, G and H groups produced both dry rot and wilting. No relation was found between geographic origin of the isolates and their VCGs. Only isolates of F and H groups were found in the same location.

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References

تعیین گروه های سازگاری رویشی قارچ Fusarium oxysporum f.sp. tuberosi در استان خراسان

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APA: Copy

RAH KHODAEI, E., & FAROKHI NEZHAD, R.. (2006). DETERMINATION OF VEGETATIVE COMPATIBILITY GROUPS AND PATHOGENICITY IN POPULATION OF FUSARIUM OXYSPORUM F. SP. TUBEROSI FROM POTATO IN FARS AND KHUZESTAN PROVINCES. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 29(2), 43-53. SID. https://sid.ir/paper/24835/en

Vancouver: Copy

RAH KHODAEI E., FAROKHI NEZHAD R.. DETERMINATION OF VEGETATIVE COMPATIBILITY GROUPS AND PATHOGENICITY IN POPULATION OF FUSARIUM OXYSPORUM F. SP. TUBEROSI FROM POTATO IN FARS AND KHUZESTAN PROVINCES. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 2006;29(2):43-53. Available from: https://sid.ir/paper/24835/en

IEEE: Copy

E. RAH KHODAEI, and R. FAROKHI NEZHAD, “DETERMINATION OF VEGETATIVE COMPATIBILITY GROUPS AND PATHOGENICITY IN POPULATION OF FUSARIUM OXYSPORUM F. SP. TUBEROSI FROM POTATO IN FARS AND KHUZESTAN PROVINCES,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 29, no. 2, pp. 43–53, 2006, [Online]. Available: https://sid.ir/paper/24835/en

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