THE INHERITANCE OF RESISTANCE TO BACTERIAL WILT (<i>ERWINIA TRACHEIPHILA</i> (E.F.SM.) HOLLAND) IN CUCUMBER

Nuttall, V. W.; Jasmin, J. J.

doi:10.4141/cjps58-064

Cited by 16 publications

(6 citation statements)

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“…Ellis and Halst; Barnes and Epps 1952]. PI 200818 originating from Myanmar is resistant to bacterial wilt [ Erwinia tracheiphila (Smith); Nuttall and Jasmin 1958]. Cucumber germplasms from Asia are considered to be important sources for disease resistance.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of resistance to melon yellow spot virus in a cucumber germplasm collection

Sugiyama¹,

Okuda²,

Sakata³

2009

Plant Breeding

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Melon yellow spot virus (MYSV), a member of the genus Tospovirus, is a serious thrips-transmitted virus of cucurbits in Japan. Resistant cultivars provide an effective means for reducing the impact of the disease; however, no MYSV-resistant cucumber has been reported. Susceptibilities of 398 cucumber accessions originating from 26 countries were evaluated by mechanical inoculation of MYSV. Thirteen accessions from South Asia, South East Asia and unknown origin had low disease severity indices (DSIs), and 10 of them showed no necrotic lesions on inoculated leaves. No or little positive reaction was detected by DAS-ELISA analysis of inoculated leaves of these accessions. 27028930 showed resistance to a melon isolate (MYSV-S) of MYSV, and ÔYamakyuri-1Õ showed moderate resistance to a cucumber isolate (FuCu05P).

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Section: Discussionmentioning

confidence: 99%

Evaluation of resistance to melon yellow spot virus in a cucumber germplasm collection

Sugiyama¹,

Okuda²,

Sakata³

2009

Plant Breeding

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“…Steadman (personal communication) observed that 'County Fair', resistant to beetle feeding, was highly sus ceptible to the disease. Resistance to E. tracheiphila is best provided through the ac tion of the Bw gene in cucumbers (37). No high resistance to E. tracheiphila has been identified in C. melo; only 1 cultivar, 'Bur rell's Gem' with 20% plant survival, was found among 250 inoculated melon cultivars (42).…”

Section: Germplasm Sources Of Resistancementioning

confidence: 99%

Genetics of and Breeding for Resistance to Bacterial Pathogens in Vegetable Crops1

Coyne

Schuster

1983

horts

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Bacterial pathogens cause destructive diseases on many important vegetable crops throughout the world. Satisfactory chemical control measures for bacterial pathogens have not been achieved. Recommended control measures are: use of disease-free seed and transplants; hot water treatment of seed if feasible; suitable rotations; deep plowing of plant debris; and use of resistant cultivars if available (13, 50, 51, 53, 73, 75, 76, 77).

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“…The United States Department of Agriculture (USDA) Germplasm Resource Information Network ( ; accessed on 17 September 2021) has a large collection of melon (>2000 accessions) and cucumber (~1300 accessions), which have played critical roles in US melon and cucumber breeding by providing important disease resistance sources. However, limited work has been done to screen the melon and cucumber germplasm for resistance to bacterial wilt [ 20 , 21 ], which is the first step in developing BW-resistant varieties [ 22 , 23 ]. Thus, the objective of this study was to screen melon accessions for resistance to bacterial wilt disease in response to mechanical inoculation by bacterial wilt pathogen, Erwinia tracheiphila .…”

Section: Introductionmentioning

confidence: 99%

Identification of Bacterial Wilt (Erwinia tracheiphila) Resistances in USDA Melon Collection

Acharya

Mackasmiel

Taheri

et al. 2021

Plants

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Bacterial wilt (BW) caused by the Gram-negative bacterium, Erwinia tracheiphila (Et.), is an important disease in melon (Cucumis melo L.). BW-resistant commercial melon varieties are not widely available. There are also no effective pathogen-based disease management strategies as BW-infected plants ultimately die. The purpose of this study is to identify BW-resistant melon accessions in the United States Department of Agriculture (USDA) collection. We tested 118 melon accessions in two inoculation trials under controlled environments. Four-week-old seedlings of test materials were mechanically inoculated with the fluorescently (GFP) labeled or unlabeled E. tracheiphila strain, Hca1-5N. We recorded the number of days to wilting of inoculated leaf (DWIL), days to wilting of whole plant (DWWP) and days to death of the plant (DDP). We identified four melon lines with high resistance to BW inoculation based on all three parameters. Fluorescent microscopy was used to visualize the host colonization dynamics of labeled bacteria from the point of inoculation into petioles, stem and roots in resistant and susceptible melon accessions, which provides an insight into possible mechanisms of BW resistance in melon. The resistant melon lines identified from this study could be valuable resistance sources for breeding of BW resistance as well as the study of cucurbit—E. tracheiphila interactions.

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THE INHERITANCE OF RESISTANCE TO BACTERIAL WILT (ERWINIA TRACHEIPHILA (E.F.SM.) HOLLAND) IN CUCUMBER

Cited by 16 publications

References 0 publications

Evaluation of resistance to melon yellow spot virus in a cucumber germplasm collection

Evaluation of resistance to melon yellow spot virus in a cucumber germplasm collection

Genetics of and Breeding for Resistance to Bacterial Pathogens in Vegetable Crops1

Identification of Bacterial Wilt (Erwinia tracheiphila) Resistances in USDA Melon Collection

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