Defence responses of chilli fruits to Colletotrichum capsici and Alternaria alternata

Anand, T.; Bhaskaran, R.; Raguchander, T.; Samiyappan, R.; Prakasam, V.; Gopalakrishnan, C.

doi:10.1007/s10535-009-0100-5

Cited by 45 publications

(29 citation statements)

References 29 publications

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“…They correlated the increased activity of POX with the accumulation of lignin and discussed the role of POX isoenzymes in lignin biosynthesis used to reinforce the cell walls against fungal penetration. Recently, increased activity of PAL, POX, PPO, and also antioxidant enzyme catalase (CAT) was observed in ripe and green chilli fruits upon infection with C. capsici (Anand et al 2009). Nantawanit et al (2010) investigated the ability of Pichia guilliermondii (yeast) to induce resistance against C. capsici in chilli fruit and reported the significant reduction in disease incidence and lesion diameter caused by C. capsici compared to the control.…”

Section: Discussionmentioning

confidence: 99%

Cerebroside mediated elicitation of defense response in chilli (Capsicum annuumL.) againstColletotrichum capsiciinfection

Jayapala

Hariprasad

Nayaka

et al. 2013

Journal of Plant Interactions

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Enhancing the host resistance by using naturally occurring elicitors derived from pathogenic organisms is emerging as an ecofriendly approach in plant disease management. Cerebrosides, categorized as glycosphingolipids, were isolated and partially purified from the wilt causing fungus (Fusarium oxysporum f. sp. lycopersici). Cerebroside treatment significantly reduced the anthracnose disease incidence under greenhouse conditions. Cerebroside elicitors were found to stimulate the early H 2 O 2 accumulation followed by the production of plant defense-related enzymes such as Phenylalanine ammonia lyase (PAL), Peroxidase (POX), Polyphenol oxidase (PPO), and Lipoxygenase (LOX) when applied to chilli (Capsicum annuum L.) plants by spray treatment and also induced the accumulation of capsidiol. Defense-related enzyme activities were increased by the elicitor treatment and an high level in activity was maintained during the experimental period. Under greenhouse conditions, the cerebroside elicitors effectively protected chilli plants against infection by anthracnose causing organism, Colletotrichum capsici.

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Section: Discussionmentioning

confidence: 99%

Cerebroside mediated elicitation of defense response in chilli (Capsicum annuumL.) againstColletotrichum capsiciinfection

Jayapala

Hariprasad

Nayaka

et al. 2013

Journal of Plant Interactions

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“…These results confirmed our first reports on ripe apple fruit (Slatnar et al 2010a, b). Increased PAL activity was also observed during plant pathogen interaction (Fuenfgelder et al 1994;Vidhyasekaran 1997;Anand et al 2009). DFR activity was also strongly induced after scab infection, although it was undetectable on the first sampling date.…”

Section: Changes Caused By the Infection With Venturia Inaequalismentioning

confidence: 93%

Polyphenol metabolism of developing apple skin of a scab resistant and a susceptible apple cultivar

Slatnar

Mikulič-Petkovšek

Halbwirth

et al. 2011

Trees

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During fruit development, the concentration of main polyphenols (flavonols, flavanols, dihydrochalcones, hydroxycinnamic acids, anthocyanins) and the activities of related enzymes (phenylalanine ammonia lyase, chalcone synthase/chalcone isomerase, flavanone 3-hydroxylase, dihydroflavonol 4-reductase, flavonol synthase, peroxidase) were monitored in apple (Malus domestica Borkh.). The seasonal survey was performed at five different sampling dates and included the healthy peel of the resistant cultivar 'Florina' and healthy peel, scab symptomatic spot and the tissue around the infected spot of the susceptible cultivar 'Golden Delicious'. From all enzymes tested, chalcone synthase/chalcone isomerase had the highest activity in both cultivars, while phenylalanine ammonia lyase had the lowest. The healthy peels of the susceptible and the resistant cultivar did not show differences in the accumulation of the main polyphenol groups present in the apple skin. However, in the resistant cultivar 'Florina', an increase of polyphenol enzyme activities could be observed in late stages of fruit development, which seems to be related to the anthocyanin accumulation in ripe fruits. Significant differences in the polyphenol metabolism were observed in the three different tissues of the susceptible cultivar 'Golden Delicious'. Increased concentrations of hydroxycinnamic acids, dihydrochalcones and flavan-3-ols were found in the scab symptomatic spots and surrounding tissues. Phenylalanine ammonia-lyase, dihydroflavonol 4-reductase, flavanone 3-hydroxylase and peroxidase showed higher activities in the scab symptomatic spot compared to other analysed tissues, whereas the activities of other enzymes remained unchanged. Highest induction of polyphenol accumulation after scab infection was observed in early developmental stages, whereas enzyme activities were increased in later stages.

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“…Susceptibility of plants to oxidative stress may depend on the balance between factors that increase ROS generation and those cellular components that exhibit an antioxidant capability (Foyer et al 1994). Activities of various antioxidant enzymes are known to increase in defence responses (Anand et al 2009) and in response to drought Srivastava 2001), high temperature and salinity (Hernandez et al 2000). Reactions involving ROS are an intrinsic feature of the senescence and fruit ripening (Jimenez et al 2003).…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Activities of antioxidant enzymes during strawberry fruit development and ripening

López¹,

Gochicoa²,

Franco³

2010

Biol. plant.

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The analyses of some antioxidant enzyme activities were carried out in the course of strawberry fruits development and ripening. The catalase activity was maximum in small-sized green fruits, it decreased in middle-sized green fruits and increased again during the ripening stages. The highest superoxide dismutase and peroxidase activities were observed in white fruits.Additional key words: catalase, peroxidase, reactive oxygen species, superoxide dismutase.

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Defence responses of chilli fruits to Colletotrichum capsici and Alternaria alternata

Cited by 45 publications

References 29 publications

Cerebroside mediated elicitation of defense response in chilli (Capsicum annuumL.) againstColletotrichum capsiciinfection

Cerebroside mediated elicitation of defense response in chilli (Capsicum annuumL.) againstColletotrichum capsiciinfection

Polyphenol metabolism of developing apple skin of a scab resistant and a susceptible apple cultivar

Activities of antioxidant enzymes during strawberry fruit development and ripening

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