A Proposed Nomenclature of Fusarium oxysporum f. sp. melonis Races and Resistance Genes in Cucumis melo

Risser, G.

doi:10.1094/phyto-66-1105

Cited by 150 publications

(102 citation statements)

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“…Resistant cultivars are effective for controlling such soil-borne diseases in melon. Risser et al (1976) defined four races (0, 1, 2, and 1,2) based on the pathogenicity to three cultivars of melon: 'Charentais T', 'Doublon', and 'CM17187'. Race 1,2 was further subdivided into race 1,2y, which induces yellowing symptoms before plant death, and race 1,2w, which induces wilting and death without yellowing symptoms.…”

Section: Introductionmentioning

confidence: 99%

“…Resistance to races 0, 1, and 2 is monogenic and dominant. The Fom-1 gene, originally identified in melon cultivar 'Doublon', confers high resistance to races 0 and 2, whereas the Fom-2 gene, originally identified in melon cultivar 'CM17187', confers high resistance to races 0 and 1 (Risser et al, 1976). To date, many resources of high resistance to race 0, 1, and 2 have been reported (Álvarez et al, 2005), and are already present among commercial F 1 hybrids; however, in races 1,2w and 1,2y, no gene that confers high resistance has been identified, although partial resistance has been found in the far-eastern line 'Ogon-9' and introgressed into 'Isabelle', a partially resistant cultivar (Perchepied 415 and Pitrat, 2004) and in a few European accessions (Chikh-Rouhou et al, 2007;Oumouloud et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Response of Wild Cucumis Species to Inoculation with Fusarium oxysporum f. sp. melonis Race 1,2y

Matsumoto

Ogawara

Miyagi

et al. 2011

J. Japan. Soc. Hort. Sci.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Response of Wild Cucumis Species to Inoculation with Fusarium oxysporum f. sp. melonis Race 1,2y

Matsumoto

Ogawara

Miyagi

et al. 2011

J. Japan. Soc. Hort. Sci.

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“…melonis 에는 4개의 race가 보고되어 있다 (Risser et al, 1976). Race 0, 1, 2, 그리고 1, 2인데, 저항성 유전자가 없는 감수성 품종 에만 병을 일으키는 race 0, 감수성 품종과 Fom-1 저항성 유전자를 가지는 저항성 품종에 병을 일으키는 race 1, 감수 성 품종과 Fom-2 저항성 유전자가 도입된 저항성 품종에 병을 일으키는 race 2, 그리고 Fom-1과 Fom-2 둘 다 가지는 품종에도 병을 일으키는 race 1, 2(race 3)가 보고되어 있다.…”

Section: Fusarium Oxysporum은 형태상으로는 구별이 되지 않지만unclassified

“…oxysporum f. sp. melonis은 세계적으로 4개의 race 즉 race 0, 1, 2 및 1,2가 보고되어 있다 (Cohen et al, 1989;Gerlach et al, 1988;Leary and Wilbur, 1976;Risser et al, 1976). 미국에서는 race 2가 우점 race이고, 유럽에서는 race 1이 가장 널리 분포되어 있다 (Martyn and Gordon, 1996).…”

Section: Fusarium Oxysporum은 형태상으로는 구별이 되지 않지만unclassified

Development of Efficient Screening Methods for Melon Plants Resistant to Fusarium oxysporum f. sp. melonis

Lee¹,

Lee²,

Jang³

et al. 2015

HST

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This study was conducted to establish an efficient screening system to identify melon resistant to Fusarium oxysporum f. sp. melonis. F. oyxsporum f. sp. melonis GR was isolated from infected melon plants collected at Goryeong and identified as F. oxysporum f. sp. melonis based on morphological characteristics, molecular analyses, and host-specificity tests on cucurbits including melon, oriental melon, cucumber, and watermelon. In addition, the GR isolate was determined as race 1 based on resistance responses of melon differentials to the fungus. To select optimized medium for mass production of inoculum of F. oxysporum f. sp. melonis GR, six media were tested. The fungus produced the most spores (microconidia) in V8-juice broth. Resistance degrees to the GR isolate of 22 commercial melon cultivars and 6 rootstocks for melon plants were investigated. All tested rootstocks showed no symptoms of Fusarium wilt. Among the tested melon cultivars, only three cultivars were susceptible and the other cultivars displayed moderate to high resistance to the GR isolate. For further study, six melon cultivars (Redqueen, Summercool, Superseji, Asiapapaya, Eolukpapaya, and Asiahwanggeum) showing different degrees of resistance to the fungus were selected. The development of Fusarium wilt on the cultivars was tested according to several conditions such as plant growth stage, root wounding, dipping period of roots in spore suspension, inoculum concentration, and incubation temperature to develop the disease. On the basis of the test results, we suggest that an efficient screening method for melon plants resistant to F. oxysporum f. sp. melonis is to remove soil from roots of seven-day-old melon seedlings, to dip the seedlings without cutting in spore suspension of 3 × 10 5 conidia/mL for 30 min, to transplant the inoculated seedlings to plastic pots with horticulture nursery media, and then to cultivate the plants in a growth room at 25 to 28°C for about 3 weeks with 12-hour light per day.

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“…, race (root-dipping method) (Cohen , 1989;Lee , 2015;Matsumoto , 2011;Namiki , 1998;Wellman, 1939). (Latin Snell, 1986 (Freeman , 2002;Iori , 2001;Zhou Everts, 2007;Zink , 1983), Risser , 1976) Seedlings of melon cultivars were uprooted and the roots were washed gently in water. And then the plants were inoculated with FOM GR by dipping the roots in inoculum suspensions of 1×10 6 conidia/ml and 1×10 7 conidia/ml for 30 minutes and were transplanted into 40-cell plastic trays.…”

Section: Melonis(fom)mentioning

confidence: 99%

Development of an Efficient Simple Mass-Screening Method for Resistant Melon to Fusarium oxysporum f. sp. melonis

Lee¹,

Jang²,

Choi³

et al. 2015

Research in Plant Disease

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This study was conducted to establish a simple mass-screening method for resistant melon to Fusarium wilt caused by Fusarium oxysporum f. sp. melonis (FOM). Root-dipping inoculation method has been used to investigate resistance of melon plants to Fusarium wilt. However, the inoculation method requires a lot of labor and time because of complicate procedure. To develop a simple screening method on melon Fusarium wilt, occurrence of Fusarium wilt on susceptible and resistant cultivars of melon according to inoculation method including root-dipping, soil-drenching, tip, and scalpel methods was investigated. Scalpel and tip methods showed more clear resistant and susceptible responses in the melon cultivars than root-dipping inoculation method, but tip method represented slightly variable disease severity. In contrast, in the case of soil-drenching inoculation method, disease severity of the susceptible cultivars was very low. Thus we selected scalpel method as inoculation method of a simple screening method for melon Fusarium wilt. By using the scalpel inoculation method, resistance degrees of the cultivars according to incubation temperature after inoculation (25 and 30 o C) and inoculum concentration (1×10 6 and 1×10 7 conidia/ml) were measured. The resistance or susceptibility of the cultivars was hardly affected by all the tested conditions. To look into the effectiveness of scalpel inoculation methods, resistance of 22 commercial melon cultivars to FOM was compare with root-dipping inoculation method. When the melon cultivars were inoculated by scalpel method, resistance responses of all the tested cultivars were clearly distinguished as by root-dipping method. Taken together, we suggest that an efficient simple mass-screening method for resistant melon plant to Fusarium wilt is to sow the seeds of melon in a pot (70 ml of soil) and to grow the seedlings in a greenhouse (25±5 o C) for 7 days, to cut the root of seedlings with a scalpel and then pour a 10 ml-aliquot of the spore suspension of 1×10 6 conidia/ml on soil. The infected plants were cultivated in a growth room at 25 to 30 o C for about 3 weeks with 12-hr light a day.

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A Proposed Nomenclature of Fusarium oxysporum f. sp. melonis Races and Resistance Genes in Cucumis melo

Cited by 150 publications

References 0 publications

Response of Wild Cucumis Species to Inoculation with Fusarium oxysporum f. sp. melonis Race 1,2y

Response of Wild Cucumis Species to Inoculation with Fusarium oxysporum f. sp. melonis Race 1,2y

Development of Efficient Screening Methods for Melon Plants Resistant to Fusarium oxysporum f. sp. melonis

Development of an Efficient Simple Mass-Screening Method for Resistant Melon to Fusarium oxysporum f. sp. melonis

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