Phytoalexin accumulation in tissues of Brassica napus inoculated with Leptosphaeria maculans

Dahiya, Jagroop S.; Rimmer, S. R.

doi:10.1016/0031-9422(88)80009-8

Cited by 37 publications

(20 citation statements)

References 3 publications

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“…These compounds can also be induced following abiotic elicitation (Paxton 1981;Rouxel 1989). Several biochemically related sulphur-containing indole phytoalexins (brassinin, cyclobrassinin, methoxybrassinin, brassilexin and cyclobrassinin sulphoxide) have recently been isolated from various Brassica species (Devys et al 1988(Devys et al , 1990Takasugi et al 1988;Dahiya and Rimmer 1989;Rouxel et al 1989). These compounds appear to be characteristic of cruciferous plants in a manner similar to that in which the isoflavonoid phytoalexins are characteristic of Leguminosae (Ingham 1982).…”

Section: Introductionmentioning

confidence: 94%

Abiotic elicitation of indole phytoalexins and resistance to Leptosphaeria maculans within Brassiceae

Rouxel

Kollmann²,

Boulidard³

et al. 1991

Planta

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Forty three accessions of Brassica species and one each of Sinapis and Raphanus were assessed for (i) resistance to Leptosphaeria maculans according to a coty-ledon-inoculation test and (ii) indole phytoalexin accumulation following abiotic elicitation with CuCl2. Five indole phytoalexins were determined in the lines following elicitation. Brassilexin, cyclobrassinin and cyclobrassinin sulphoxide were found within at least some lines of all species, whereas brassinin was only detected in B. oleracea and B. napus and methoxybrassinin within these two species and B. rapa and B. carinata. None of the five indole phytoalexins could be found in Raphanus sativus or Sinapis alba. The accumulation of large amounts of specific phytoalexins could be correlated with the presence of the different Brassica genomes. Lines possessing the B genome (B. nigra, B. juncea and B. carinata) which accumulated high amounts of brassilexin, displayed a hypersensitive resistance to infection whereas the majority of lines of B. oleracea, B. napus and B. rapa which did not accumulate large amounts of brassilexin, were susceptible. However, a B. nigra and a B. rapa line which only accumulated low amounts of brassilexin were highly resistant to the pathogen. Neither the accumulation of the other phytoalexins nor the total accumulation of indole phytoalexins could be related to resistance to L. maculans.

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Section: Introductionmentioning

confidence: 94%

Abiotic elicitation of indole phytoalexins and resistance to Leptosphaeria maculans within Brassiceae

Rouxel

Kollmann²,

Boulidard³

et al. 1991

Planta

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“…pekinensis (Takasugi et al, 1988) und einigen anderen Brassica-Arten (Dahiya und Rimmer, 1988, 1989 Das 'H -N M R -Spektrum von 1-Methoxyspiro brassinin (6) weist gegenüber dem Spektrum des Spirobrassinins (5) ein zusätzliches Methylsingulett bei 4.05 ppm auf, das der 1-M ethoxygruppe zugeordnet werden kann. Aufgrund der Substitu tion an N -l zeigen die 'H-NM R-Signale der aro matischen Protonen in 6 eine etwas andere chemi sche Verschiebung als die von 5.…”

Section: Einführungunclassified

“…hortensis (Takasugi et al, 1987), B. oleracea var. capi tata (M onde et al, 1990) und B. juncea (Pedras und Seguin-Swartz, 1992) (Dahiya und Rimmer, 1988, 1989M onde et al, 1990Pedras und Seguin-Swartz, 1992;Takasugi et al, 1987Takasugi et al, , 1988; R o u x e l^a /., 1991).…”

Section: Einführungunclassified

Phytoalexine mit Indolstruktur aus Kohlrabi {Brassica oleracea var. gongylodes)⁺ / Indole Phytoalexins from the Kohlrabi (Brassica oleracea var. gongylodes)⁺

Gross

Porzel

Schmidt

1994

Zeitschrift Für Naturforschung C

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Phytoalexins, Kohlrabi, Cyclobrassinone, 1-Methoxyspirobrassinin, Spirobrassinin UV-irradiation of sliced stem tubers of kohlrabi (Brassica oleracea var. gongylodes) fol lowed by incubation for 4 days, resulted in the production of two new sulphur-containing indole phytoalexins, cyclobrassinone and 1 -methoxyspirobrassinin, whose structures were elucidated on the basis of spectroscopic data. Three known indole phytoalexins, spirobrassi nin, methoxybrassitin and methoxybrassinin, and several m inor phytoalexin-like com pounds not yet identified were also isolated. The accum ulation o f these indole phytoalexins was also induced by abiotic elicitation with CuCl2.Feeding both of L-[ß-14C]tryptophan and L-[14C H 3]methionine to U V -irradiated stem tuber tissue of kohlrabi indicated that the S-containing indole phytoalexins were biosynthesized from these amino acids. EinführungPhytoalexine sind per definitionem niedermole kulare antimikrobielle Sekundärstoffe, die in der Pflanze nach Pathogenbefall oder Streß bzw. nach A pplikation eines geeigneten biotischen oder abiotischen Elicitors de novo gebildet und akkum uliert werden. Die im Pflanzenreich weit verbreitete F ä higkeit zur Phytoalexinbildung trägt als induzier barer Abwehrmechanismus der Pflanze mit zu ihrer Resistenz gegen Pathogenbefall bei. Jede Pflanzenfamilie bildet bevorzugt Phytoalexine einer chemischen G rundstruktur, beispielsweise produzieren Solanaceen im wesentlichen sesquiterpenoide Phytoalexine, während Leguminosen vor allem Streßmetabolite mit Isoflavonoid-oder Pterocarpanstruktur akkum ulieren.Vor kurzem sind in pathogen-infiziertem China kohl, Weißkohl, Raps und einigen anderen Brassicaceen (Cruciferae) erstmals Phytoalexine aufge funden worden, die als charakteristische G rund struktur einen Indol-oder Oxindolring mit einem schwefelhaltigen Strukturelem ent aufweisen (Gross, 1993; M onde, 1992

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“…Différents composés supprimant la reconnaissance, et donc la réaction potentielle de l'hôte, sont décrits par divers auteurs (Doke, 1975;Garas et al, 1979;Doke et Tomiyama, 1980;Oku et al, 1980;Heath, 1982 (Gnanamanickam et Patil, 1977;Tietjen et Matern, 1984;Rouxel et al, 1988;Rouxel, 1988 Smith, 1979;Kaplan et al, 1980;Rossall et al, 1980;Van Etten et al, 1982;Smith et aL, 1984;Lucy et al, 1988 Bailey, 1982aBailey, , 1983Ward, 1986 (Dahiya et Rimmer, 1988) ou du couple piment/Phytophthora capsici (Molot et al, 1985). Dans le premier cas, une accumulation intense de méthoxybrassinine et de cyclobrassinine accompagne une «réaction hypersensible inefficace» de la plante vis-à-vis du champignon (Dahiya et Rimmer, 1988;Rouxel, 1988 Il faut enfin insister sur le fait que l'accumulation intense de phytoalexines n'est que l'une des réponses associées à la réaction hypersensible (Bell, 1980(Bell, , 1981Goodman et al, 1986;Heath, 1986 (Bailey, 1982a …”

Section: Déterminisme Génétiqueunclassified

“…Dans le premier cas, une accumulation intense de méthoxybrassinine et de cyclobrassinine accompagne une «réaction hypersensible inefficace» de la plante vis-à-vis du champignon (Dahiya et Rimmer, 1988;Rouxel, 1988 Il faut enfin insister sur le fait que l'accumulation intense de phytoalexines n'est que l'une des réponses associées à la réaction hypersensible (Bell, 1980(Bell, , 1981Goodman et al, 1986;Heath, 1986 (Bailey, 1982a …”

Section: Déterminisme Génétiqueunclassified

Les phytoalexines et leur intervention dans la résistance hypersensible aux champignons phytopathogènes

Rouxel¹

1989

Agronomie

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Phytoalexin accumulation in tissues of Brassica napus inoculated with Leptosphaeria maculans

Cited by 37 publications

References 3 publications

Abiotic elicitation of indole phytoalexins and resistance to Leptosphaeria maculans within Brassiceae

Abiotic elicitation of indole phytoalexins and resistance to Leptosphaeria maculans within Brassiceae

Phytoalexine mit Indolstruktur aus Kohlrabi {Brassica oleracea var. gongylodes)⁺ / Indole Phytoalexins from the Kohlrabi (Brassica oleracea var. gongylodes)⁺

Les phytoalexines et leur intervention dans la résistance hypersensible aux champignons phytopathogènes

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Phytoalexin accumulation in tissues of Brassica napus inoculated with Leptosphaeria maculans

Cited by 37 publications

References 3 publications

Abiotic elicitation of indole phytoalexins and resistance to Leptosphaeria maculans within Brassiceae

Abiotic elicitation of indole phytoalexins and resistance to Leptosphaeria maculans within Brassiceae

Phytoalexine mit Indolstruktur aus Kohlrabi {Brassica oleracea var. gongylodes)+ / Indole Phytoalexins from the Kohlrabi (Brassica oleracea var. gongylodes)+

Les phytoalexines et leur intervention dans la résistance hypersensible aux champignons phytopathogènes

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Product

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Phytoalexine mit Indolstruktur aus Kohlrabi {Brassica oleracea var. gongylodes)⁺ / Indole Phytoalexins from the Kohlrabi (Brassica oleracea var. gongylodes)⁺