The rôle of indole glucosinolates in the club root disease of the Cruciferae

Butcher, D. N.; Eltigani, Sara A.; Ingram, D. S.

doi:10.1016/0048-4059(74)90052-6

Cited by 107 publications

(68 citation statements)

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“…Altogether, the results showed that the mean IAA content of the infected plants was approximately 66 5 "o higher than that of the non-infected controls. These results agree with others on the indole metabolism in P. brassicaeinfected plants, which show relatively higher contents of indole-3-acetonitrile, IMG and IAA following infection (Raa, 1971;Butcher, El-Tigani & Ingram, 1974;Butcher, Searle & Mousdale, 1976;Rausch, Butcher & Hilgenberg, 1981. In contrast, Mousdale (1981) found a lower IAA content in infected plants of Brassica napus than in corresponding control plants both before and after the development of clubroot symptoms.…”

Section: Concentrations Of Laa In Tolerant and Susceptible Chinese Casupporting

confidence: 81%

“…The infected plants ofthe tolerant variety 'Parkin' had the same indole glucosinolate levels as the control plants. It is essential to distinguish between the IAA content -which may be partly due to wounding effects, and the glucosinolate contentwhich takes part in the development of the disease (Butcher, El-Tigani & Ingram, 1974;Butcher, Searle & Mousdale, 1976).…”

Section: Indole Gliicosinolate Content In Infected and Control Plantsmentioning

confidence: 99%

“…P. brassicae (wild type mixture) was used for the inoculation of all varieties. The infection method in soil and the culture conditions were as described previously for swede (Butcher, Searle & Mousdale, 1976). The infection in liquid culture was performed on commercially available hotbed fleece (Egesa).…”

Section: Plant Materialsmentioning

confidence: 99%

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Concentrations of indole‐3‐acetic acid in plants of tolerant and susceptible varieties of Chinese cabbage infected with Plasmodiophora brassicae Woron.

et al. 1993

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SUMMARYA convenient method for infecting Brassica seedlings in liquid medium with the phytopathogenic fungus Plasmodiophora brassicae was developed. The infection rates of two susceptible and two tolerant Chinese cabbage varieties with wild type P. brassicae were investigated. The content of free indole-3-acetic acid (IAA) was determined using combined gas chromatography-mass spectronnetry (GC-MS) with [^^Cg]-I-AA as internal standard during the first period of infection with the fungus (5-14 d) and compared with the indole glucosinolate content of two Chinese cabbage varieties (one tolerant, one susceptible) in tbe same developmental stages. The results showed that the mean of the IAA content in the infected plants was approximately 66-5 °(, bigber tban that of the non-infected controls. In botb the susceptible and tolerant varieties bigber levels of IAA were found in tbe infected plants 10 d after tbe beginning of incubation. After 14 d of incubation IAA levels decreased in tbe susceptible, infected plants and increased in tbe tolerant, infected piants.

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Section: Concentrations Of Laa In Tolerant and Susceptible Chinese Casupporting

confidence: 81%

Section: Indole Gliicosinolate Content In Infected and Control Plantsmentioning

confidence: 99%

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Concentrations of indole‐3‐acetic acid in plants of tolerant and susceptible varieties of Chinese cabbage infected with Plasmodiophora brassicae Woron.

et al. 1993

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“…It was proposed that the elevated IAA content in clubrootinfected tissue could be derived from indole glucosinolates (Butcher et al, 1974). To date, three different pathways for the synthesis of IAA in the Brassicaceae have been proposed (Normanly et al, 1995) : (1) via a non-tryptophan pathway, (2) via tryptophan, IAOX and IAN, and (3) via the indole glucosinolates.…”

Section: mentioning

confidence: 99%

“…Enhanced cell division and elongation might be stimulated by increased concentrations of host-derived cytokinins (Dekhuijzen & Overeem, 1971) and auxins (Butcher et al, 1976). Butcher et al (1974) discussed a possible relationship between enhanced auxin levels in infected roots and indole glucosinolate degradation, and suggested that host genotypes with lower concentrations of indole glucosinolates might show reduced symptoms. However, Rausch et al (1983) hypothesized that only very low concentrations of auxin, and therefore only low concentrations of indole glucosinolates, are necessary for clubroot formation.…”

mentioning

confidence: 99%

The host range of Plasmodiophora brassicae and its relationship to endogenous glucosinolate content

et al. 1999

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The host range of the soilborne obligate biotroph, Plasmodiophora brassicae was investigated. Evidence is presented that infection by P. brassicae might occur in non-Brassica species, leading to the potential formation of resting spores. Structures resembling P. brassicae were found in the root cortex of Tropaeolum majus, Carica papaya, Reseda alba and Beta vulgaris as demonstrated by scanning electron microscopy. Inoculation of Brassica rapa roots with spores extracted from either T. majus or B. vulgaris roots which had been previously inoculated with P. brassicae led to development of clubroot in the roots of B. rapa. It was also shown that the development of the symptom might be correlated with glucosinolate content, although other host factors are implicated in the B. vulgaris interaction with P. brassicae. In the glucosinolate-containing non-Brassicas, T. majus and C. papaya, the concentrations of benzylglucosinolate increased markedly in roots inoculated with P. brassicae, compared with the controls. There were also increases in concentrations of benzylglucosinolate in leaves of T. majus after P. brassicae infection. However, in R. alba roots, the total glucosinolate content decreased after inoculation with P. brassicae compared with the controls. High root concentrations of 2-OH-2-phenylethylglucosinolate (glucobarbarin) compared with low root indole glucosinolates in this species might limit P. brassicae infection and development. The importance of our investigations in relation to cultivation of non-Brassica species on fields infested with P. brassicae is discussed.

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Glucosinolates in Crop Plants

Rosa

Heaney

Fenwick

et al. 1996

Horticultural Reviews

172

170

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Glucosinolates with Brassica genus as secondary metabolites have a lot of functions and effects. Glucosinolates form less than 2% of the overall sulphur content at the beginning of vegetation in different parts of the plants and during growth their content is decreasing and forms less than 0.1%. This low representation doubts their storage function. With its chemical composition, they are ranked among natural pesticides with active and passive resistance against diseases and pests. They show repellent effects and properties of natural biofumigators in soil after ploughing in their biomass as green fertilizing, or after ploughing in after harvest the leftovers of rape. The principle of these effects is decomposition products of glucosinolates-bioactive isothiocyanates. Very important from this point of view are turnip rape Rex and Brassica juncea, whose content of these compounds is the highest one and they are resistant against the attack of Ceutor-rhynchus pleurostigma. The same effect showed also when attacked by Phoma lingam. With other winter Brassicas either hybrid or linea and summer rape is this defensive system suppressed because of their lowered content due to breeding interferences, leading to limitation of their anti-nutritional negative effects. It is possible to state the final result after finding out the production of the above matter, roots, and after evaluation of the sorbal characteristics of the soil and evaluation of the state of health of the following crop or vegetable. After this overall analysis, it will be possible to evaluate the biofumigation properties of accessible varieties of the Brassica genus.

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The rôle of indole glucosinolates in the club root disease of the Cruciferae

Cited by 107 publications

References 11 publications

Concentrations of indole‐3‐acetic acid in plants of tolerant and susceptible varieties of Chinese cabbage infected with Plasmodiophora brassicae Woron.

Concentrations of indole‐3‐acetic acid in plants of tolerant and susceptible varieties of Chinese cabbage infected with Plasmodiophora brassicae Woron.

The host range of Plasmodiophora brassicae and its relationship to endogenous glucosinolate content

Glucosinolates in Crop Plants

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