Wilt-resistance

Role of chitin-specific peroxidases in wilt-resistant cotton // Chem. Nat. Comp. V. 44. P. 493-496. 

Stevenson, P.C. and Veitch, N.C., A 2-arylbenzofuran from roots of Cicer bijugum associated with Fusarium wilt resistance, Phytochemistry, 48, 947, 1998. 

Bae, J., Halterman, D., Jansky, S. H. (2008). Identification of a molecular marker associated with Verticillium wilt resistance in diploid interspecific potato hybrids. Molecular Breeding, 22, 61-69. 

Azad, H.R., Davis, J.R., Schnathorst, W.C., Kado, C.I. Influence of Verticillium wilt resistant and susceptible potato genotypes on populations of antagonistic rhizosphere and rhizoplane bacteria and free nitrogen fixers. Appl Microbiol Biotechnol 1987 26 99-104. 

Trione, E.J. (1960) The HCN content of flax in relation to flax wilt resistance. Phytopathology, 50, 482-6. 

Lower leaves yellow, wilt, and die. Cause Fusarium wilt. Other symptoms of this common fungal disease include yellowing and wilting of 1 side of plant only drooping flower heads stunted mature plants dark brown areas on stems and partial or total root decay. Once introduced on diseased plants or transmitted by wind, water, or handling, Fusarium wilt lives on indefinitely in soil. There is no cure. Remove infected plants and dispose of them in sealed containers in household trash. Never plant China asters in the same location 2 years in a row. Wilt-resistant cultivars are available, but they are not completely immune. 

Plants are stunted and do not recover when watered. Cut open a stem near the soil line and look for internal discoloration. Verticillium fungi are active between 68° and 75°F, while Fusarium is active between 80° and 90°E Destroy infected plants. Pepper Fusarium infects only peppers, while Verticillium infects a wide range of plant species, making effective rotation control difficult. Prevent problems by presoaking seed in a 10 percent bleach solution. Control pest nematodes to help reduce wilt problems. Few wilt-resistant cultivars are available Giant Szegedi is tolerant of Verticillium. 

Chemical defenses. Some plants contain biochemicals that help them resist diseases. Cells commonly release various substances, some of whieh may be toxic to nearby fungi or bacteria. For example, wilt-resistant pea culti-vars exude from their roots a chemical that is toxic to wilt-producing fungi. Plant cells may also contain protective biochemieals that can slow or stop the growth of a pathogenic fungus or bacterium once it penetrates the plant. Part of the Verticillium resistance of potato is due to such protective biochemicals within the cells of resistant cultivars. 

There is no cure for Verticillium wilt. The most effective control is the use of wilt-resistant cultivars, when available. Crop rotation is not very effective because so many species are susceptible to Verticillium wilt. Soil solarization may help to control it. 

Mace, M. E., R. D. Stipanovic, and A. A. Bell, Toxicity and role of terpenoid phytoalexins in verticillium wilt resistance in cotton. Physiol. Plant Path., 26, 209-218 (1985). 

Mentha piperita Todd s Mitcham USA 1972 Mutation Wilt resistant... 

The primary objective of oil palm breeders is high oil yield. This is the most effective way of maximising the growers return. In areas such as parts of West Africa where Fusarium wilt is endemic, yields me only possible from wilt resistant varieties and for these meais selection for wilt resistance is a vital part of clonal selection. The first clones are now developing from wilt resistant palms in Zaire and are being tested for inherited wilt resistance, first at the nursery stage and subsequently in the field. 

Spielmeyer, W., Green, A.G., Bittisnich, D., Mendham, N., Lagudah, E.S., 1998b. Identification of quantitative trait loci contributing to Fusarium wilt resistance on an AFLP linkage map of flax (Linum usitatissimum). Theor. Appl. Genet. 97, 633-641. 

Fusarium oxysporum fsp. radicis-lycopersici Jarvis and Shoemaker (FORE) (Jarvis and Shoemaker, 1978) [1] is a pathogen of tomato which, with the arrival of intensive tomato culture under glass, has developed to serious proportions [2]. This forma specialis of F. oxysporum affects largely the root and crown tissues of tomato and the symptoms occur as foot and root rot. FORL isolates are pathogenic on tomato plants with genes for resistance to races 1 and 2 of Fusarium oxysporum Schlecht. fsp. lycopersici (Sacc.) Snyd. Hans (FOL), that cause the common Fusarium wilt of the tomato. However, although resistance to FORL has been found and incorporated into commercial cultivars, the disease is a severe problem in wide areas of the North Hemisphere [3-9]. 

In terrestrial plants, paraquat s action is at the point of local absorption (Anonymous 1963). Characteristic damage signs to susceptible species include wilting and general collapse in herbaceous plants. Regrowth may occur in some perennial plants, but in resistant species temporary scorch may be the most marked effect (Anonymous 1963). In sugarcane (Saccharum officinarum), paraquat... 

Jansky, S. H., Rouse, D. I. (2000). Identification of potato interspecific hybrids resistant to Verticillium wilt and determination of criteria for resistance assessment. Potato Research, 43,239-251. 

Leeman, M., Denouden, E.M., Vanpelt, J.A., Dirkx, F., Steijl, H., Bakker, P.A.H.M., Schippers, B. Iron availability affects induction of systemic resistance to fusarium wilt of radish by Pseudomonas fluorescens. Phytopathology 1996 86 49-55. 

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