Function of Host and Fungal Metabolites in Resistance Response of Banana and Plantain in the Black Sigatoka Disease Pathosystem (<i>Musa</i>spp. –<i>Mycosphaerella fijiensis</i>)

Hoß, Reinhart; Helbig, J.; Bochow, H.

doi:10.1046/j.1439-0434.2000.00530.x

Cited by 45 publications

(44 citation statements)

References 22 publications

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“…It produces a number of low molecular weight secondary metabolites (i.e., fijiensine, tetralone, juglone), which are toxic to banana plants (Molina and Krausz, 1988;Stierle et al, 1991;Harelimana et al, 1997;Lepoivre, 2000;Hoss et al, 2000). These metabolites are suspected of contributing to disease progression (Lepoivre, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effect of Juglone on Active Oxygen Species and Antioxidant Enzymes in Susceptible and Partially Resistant Banana Cultivars to Black Leaf Streak Disease

Hadrami

Koné²,

Lepoivre

2005

Eur J Plant Pathol

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The black leaf streak disease (BLSD), caused by Mycosphaerella fijiensis, is the most destructive disease of bananas and plantains around the world. Breeding for resistance is the most promising strategy to fight this disease especially in small farmer plantations. Mycosphaerella fijiensis produces many phytotoxins such as juglone, which can be used, jointly with field and inoculations under controlled conditions, for screening banana cultivars for BLSD-resistance. This non-host specific phytotoxin has been shown to act on chloroplasts and disturbs the proton electrochemical gradient across the plasmalemma membrane. Moreover, an involvement of the oxidative burst during the interaction has been suggested. The present study was carried out using two cultivars that differed for either their juglone-responses or their resistance to BLSD (cv. Grande Naine susceptible to BLSD and juglone and cv. Fougamou partially resistant to BLSD and highly tolerant to juglone). The production of active oxygen species (AOS) and the enhancement of the enzymatic and/or non-enzymatic AOS-scavenging systems were investigated after treatment of the two cultivars with juglone. The time-course of AOS-production and AOS-scavenging was shown to be the key difference between these two tested cultivars after treatment with juglone. Thus, an early release of AOS (O 2 ) radical and H 2 O 2 ) and a quick stimulation of a preferment anti-oxidant system (superoxide dismutases, catalases, and peroxidases) was observed for cv. Fougamou as compared to cv. Grande Naine for which a late and weak generation of AOS accompanied by a late stimulation of the anti-oxidant systems were detected.

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Section: Introductionmentioning

confidence: 99%

Effect of Juglone on Active Oxygen Species and Antioxidant Enzymes in Susceptible and Partially Resistant Banana Cultivars to Black Leaf Streak Disease

Hadrami

Koné²,

Lepoivre

2005

Eur J Plant Pathol

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“…The symptoms of the disease include elongated, necrotic lesions surrounded by chlorotic zones, suggesting the involvement of phytotoxins (Upadhyay et al 1990). Mycosphaerella fijiensis is known to produce lipophilic phytotoxins (Hoss et al 2000;Stierle et al 1991;Upadhyay et al 1990); 2,4,8-trihydroxytetralone is the most abundant and the most phytotoxic, with a hostselectivity similar to that of the pathogen (Stierle et al 1991). The mechanism of action of the different lipophilic phytotoxins produced by M. fijiensis has been studied very little; however, it has been reported that their activity is light-dependent, they affect the chloroplast, and disturb the proton electrochemical gradient across the plasma membrane, increase electrolyte leakage, and induce an oxidative burst in Musa spp.…”

Section: Introductionmentioning

confidence: 99%

Physiological effects of the hydrophilic phytotoxins produced by Mycosphaerella fijiensis, the causal agent of black sigatoka in banana plants

et al. 2010

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Although Mycosphaerella fijiensis, the causal agent of black sigatoka disease of banana, has been known to produce numerous lipophilic host-selective (HSTs) and nonhost selective phytotoxins (non-HSTs), only recently we have reported that the pathogen also produces hydrophilic phytotoxins. Here we examined the effect of light on the toxicity of the hydrophilic phytotoxins and estimated the electrolyte leakage and H 2 O 2 and superoxide generation in detached banana leaves to study their mode of action at the cellular level. Nonhost plant species were also tested to determine whether the toxins are HSTs or nonHSTs. Our results suggest that the hydrophilic phytotoxins are non-HSTs, that their phytotoxicity is not light dependent, and that they may act at the plasma membrane by altering permeability through oxidative damage, by inducing ROS production as part of their mechanism of action.

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“…to M. fijiensis is related to the post-infection activation of different defense mechanisms in the plant, e.g. production of proteins related to pathogenesis (Lepoivre et al 1993), hypersensitive response (Mourichon et al 1997), changes in the structure of preformed metabolites (Hoss et al 2000), and production of phytoalexins (Quiñones et al 2000). Even though a number of phytoalexins have been reported from the crop (e.g.…”

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confidence: 99%

Phytoanticipins from banana (Musa acuminata cv. Grande Naine) plants, with antifungal activity against Mycosphaerella fijiensis, the causal agent of black Sigatoka

et al. 2009

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The previously detected antifungal activity against Mycosphaerella fijiensis of aqueous infusions of healthy banana (Musa acuminata cv. Grande Naine) leaves, suggested the production of phytoprotectants by the plant. The bioassay-guided VLC-purification of the lyophilized infusion of the leaves of 4-month old healthy banana (M. acuminata cv. Grande Naine) plants, resulted in the purification of a phytoanticipin with strong antifungal activity against M. fijiensis Morelet, the causal agent of black Sigatoka, the most destructive and devastating disease of bananas and plantains in the world. The LC-MS analysis of the purified phytoanticipin suggests a steroidal saponin structure with four sugar units attached to the C-3 position of a diosgenin-like aglycone. This represents the first report of phytoanticipins occurring in M. acuminata.

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Function of Host and Fungal Metabolites in Resistance Response of Banana and Plantain in the Black Sigatoka Disease Pathosystem (Musaspp. –Mycosphaerella fijiensis)

Cited by 45 publications

References 22 publications

Effect of Juglone on Active Oxygen Species and Antioxidant Enzymes in Susceptible and Partially Resistant Banana Cultivars to Black Leaf Streak Disease

Effect of Juglone on Active Oxygen Species and Antioxidant Enzymes in Susceptible and Partially Resistant Banana Cultivars to Black Leaf Streak Disease

Physiological effects of the hydrophilic phytotoxins produced by Mycosphaerella fijiensis, the causal agent of black sigatoka in banana plants

Phytoanticipins from banana (Musa acuminata cv. Grande Naine) plants, with antifungal activity against Mycosphaerella fijiensis, the causal agent of black Sigatoka

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