Evidence for an Expanded Host Range of Fusarium oxysporum f. sp. betae

A literature study was conducted to gather knowledge on the impact of weed seeds on agroecosystem functioning other than effects related to the production of weed seedlings and plants. The results of the review suggested that a larger and more diverse weed seedbank can contribute to the biodiversity of various groups of macrofauna and microbiota, with a positive or negative impact on the agroecosystem. However, relationships between weed seed availability and functional biodiversity in the field have generally not been established, with the exception of case studies of seeds sustaining populations of granivorous farmland birds or acting as reservoirs and vectors of plant pathogens. To value the contribution of different weed seeds to sustaining populations of functional biota, more detailed information on their relationships with seeds is essential. Hypotheses and related questions that can be used to explore the impact of weed seeds on functional biodiversity have been identified. The identification of weed seed species that are a key to sustaining functional biota may lead to a weed management strategy aiming to minimise the damage of weeds to crops while taking the alternative ecological roles of weed seeds into account.

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“…A very wide range of weed species is a natural carrier of Fusarium spp. (MacDonald & Leach, 1976; Menzies et al. , 1990).…”

Section: Resultsmentioning

confidence: 99%

“…Weed seeds probably facilitate the persistence of Fusarium spp. in soil for prolonged periods of time in the absence of suitable host plants (MacDonald & Leach, 1976; Rekah et al. , 2001) and contribute to the dispersal of Fusarium spp .…”

Section: Resultsmentioning

confidence: 99%

The role of arable weed seeds for agroecosystem functioning

et al. 2009

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“…Clark and Watson (1983) provided evidence that four species of Convolvulacea are symptomless hosts of the sweet potato wilt pathogen. McDonald and Leach (1976) reported that the sugar beet stalk blight pathogen, Fusarium oxysporum f. sp. betae, was isolated from Chenopodium album and Anethum graveolens, which remained symptomless.…”

Section: Introductionmentioning

confidence: 99%

Fusarium Species Isolated from Common Weeds in Eggplant Fields and Symptomless Hosts of Fusarium oxysporum f. sp. melongenae in Turkey

Altınok

2013

Journal of Phytopathology

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“…Sometimes sectoring occurs, with only one side of the leaf along the midrib turning yellow, followed later by the entire leaf. Dampingoff and root rot occur on sugar beet but seed-producing beet may also be affected by stalk blight (14,28). Fusarium yellows causes significant quantitative and qualitative yield losses due to reduced plant population, poor growth of plants, and increased impurities in the extracted juice (19,20).…”

mentioning

confidence: 99%

Comparative Pathogenicity and Virulence of Fusarium Species on Sugar Beet

et al. 2012

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Burlakoti, P., Rivera, V., Secor, G. A., Qi, A., Del Rio-Mendoza, L. E., and Khan, M. F. R. 2012. Comparative pathogenicity and virulence of Fusarium species on sugar beet. Plant Dis. 96:1291-1296.In all, 98 isolates of three Eusarium spp. (18 Fusarium oxysporum, 30 F. graminearum, and 50 Eusarium sp. nov.) obtained from sugar beet in Minnesota were characterized for pathogenicity and virulence on sugar beet in the greenhouse by a bare-root inoculation method. Among the 98 isolates tested, 80% of isolates were pathogenic: 83% of the E oxysporum isolates, 57% of the F. graminearum isolates, and 92% of the Eusarium sp. nov. isolates. Symptoms varied from slight to moderate wilting of the foliage, interveinal chlorosis and necrosis, and vascular discoloration of the taproot without any external root symptoms. Among the pathogenic isolates, 14% were highly virulent and 12% were moderately virulent. Most of the highly virulent isolates (91%) and moderately virulent isolates (89%) were Eusarium sp. nov. All pathogenic isolates of E graminearum and most pathogenic isolates (87%) of E. oxysporum were less virulent. In general, more-virulent isolates induced first foliar symptoms earlier compared with lessvirulent isolates. This study indicates that both E. oxysporum and Eusarium sp. nov. should be used in greenhouse and be presen: in field studies used for screening and developing sugar beet cultivars resistant to Fusarium yellows complex for Minnesota and North Dakota.

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Evidence for an Expanded Host Range of Fusarium oxysporum f. sp. betae

Cited by 22 publications

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The role of arable weed seeds for agroecosystem functioning

The role of arable weed seeds for agroecosystem functioning

Fusarium Species Isolated from Common Weeds in Eggplant Fields and Symptomless Hosts of Fusarium oxysporum f. sp. melongenae in Turkey

Comparative Pathogenicity and Virulence of Fusarium Species on Sugar Beet

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