Observations on infection of Capsicum annuum fruit by Glomerella cingulata and Colletotrichum capsici

Adikaram, N. K. B.; Brown, Averil E.; Swinburne, T. R.

doi:10.1016/s0007-1536(83)80035-7

Cited by 17 publications

(6 citation statements)

References 10 publications

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“…Little information is available as to the morphological events prior to the onset of quiescence in tropical fruit in the field, Simmonds (1941) concluded that C, musae formed appressoria on the Surface of immature, uninjured banana fruits. The fungus was then reported to penetrate the cuticle before becoming quiescent as a limited subcuticular mycelium, Adikaram et al (1983) compared the infection process on immature and ripened peppers using two species, G. cingulata and Colletotrichum capsici, known to cause anthracnose of this host. Both fungi remained quiescent on immature fruits and developed progressive lesions only when the fruits had fully ripened.…”

Section: Infection Processmentioning

confidence: 99%

The biology and control of Colletotrichum species on tropical fruit crops

Jeffries¹,

Dodd²,

Jeger³

et al. 1990

Plant Pathology

190

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Section: Infection Processmentioning

confidence: 99%

The biology and control of Colletotrichum species on tropical fruit crops

Jeffries¹,

Dodd²,

Jeger³

et al. 1990

Plant Pathology

190

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“…Phytoalexins have also been identified in the anthracnose of Capsicum annum L. caused by Colletotrichum capsici and Glomerella cingulata (Adikaram, 1981;Adikaram & al., 1982). When unripe fruit were inoculated with these two species the phytoalexin capsicannol was produced (Adikaram & al., 1983). In ripening fruit capsidiol was also produced in addition to capsicannol, but both were absent at the onset of lesion expansion.…”

Section: Biochemical Basis Of Host-pathogen Interactionsmentioning

confidence: 99%

Untitled

Wharton¹,

Diéguez-Uribeondo²

2004

Anal. Jard. Bot. Madr.

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Colletotrichum acutatum is major pathogen of fruit crops, causing economically important losses of temperate, subtropical and tropical fruits worldwide. However, few studies have been carried out on key aspects of its biology. This is mainly because traditionally isolates of C. acutatum were often wrongly identified as C. gloeosporioides. Effective separation of the two species was not possible until the introduction of molecular tools for taxonomy. The life cycle of C. acutatum comprises a sexual and an asexual stage and much remains to be resolved regarding the genetics of sexuality and the effects of the sexual stage on population structure. Colletotrichum acutatum exhibits both infection strategies described for Colletotrichum species, i.e. intracellular hemibiotrophy and subcuticular-intramural necrotrophy, and may also undergo a period of quiescence in order to overcome resistance mechanisms in immature fruit such as pre-formed toxic compounds and phytoalexins, or due to the unsuitability of unripe fruit to fulfill the nutritional and energy requirements of the pathogen. Colletotrichum acutatum may overwinter as mycelium and/or appressoria in or on different parts of the host. Conidia are water-born and spread by rain episodes so infections are usually highest during the wettest periods of the growing season. Current management strategies for this fungus comprise the exploitation of cultivar resistance, cultural, chemical, and biological control methods, and preventive strategies such as disease-forecasting models. This review focuses on the current knowledge of biological aspects of C. acutatum and related Colletotrichum species and includes a discussion of the progress towards their control.

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“…Than et al (2008a) reported C. acutatum, C. capsici and C. gloeosporioides from Thailand. Adikaram et al (1983) reported C. acutatum and Glomerella cingulata from the UK and Roberts et al (2001) reported C. acutatum from the USA and Don et al (2007) reported C. acutatum, C. capsici, C. gloeosporioides and C. nigrum from Vietnam. Among all the species, C. capsici is common and dominant in most part of the world.…”

Section: Introductionmentioning

confidence: 99%

Chilli Anthracnose: A Review of Causal Organism, Resistance Source and Mapping of Gene

Garg

Loganathan

Saha

et al. 2014

Microbial Diversity and Biotechnology in Food Security

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Anthracnose disease is one of the major economic constraints to chilli production in tropical and subtropical regions of the world and it is gaining much attention towards causes of damage in the field. Growing understanding has been based on conventional methods of characterisation of Colletotrichum species and its interaction with the host but it was not clear enough to recognise the differentiation among species, host-pathogen relationship and genetics of resistance in chilli. In this chapter, emphasis has been made on the evaluation of the isolates of Colletotrichum capsici causing chilli anthracnose for their morphological and cultural characteristics, pathogenic variability on chilli fruits and genetic diversity with the help of random amplified polymorphism (RAPD-PCR) analysis and designated into different major clusters. Simultaneously, screening of Capsicum genotypes against anthracnose for testing the resistance has been highlighted under in vitro condition. Further, on the basis of inheritance and the segregation ratio of resistance to susceptibility, gene controlling resistance at different fruit maturity stages has been discussed. More importantly, by QTL mapping, distribution of resistance gene/s located on chromosomes by using simple sequence repeats (SSR) primers, linkage groups are indicated. A number of complementary resistant component (host-parasitic interaction) controlled by one or multiple genes with small quantification effects have been emphasized. This information will be valuable to overcome the use of agrochemicals, impact of environmental factors and in the management of this serious threat to chilli through the development of resistant varieties as a donor candidate in commercial and resistance-breeding program.

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Observations on infection of Capsicum annuum fruit by Glomerella cingulata and Colletotrichum capsici

Cited by 17 publications

References 10 publications

The biology and control of Colletotrichum species on tropical fruit crops

The biology and control of Colletotrichum species on tropical fruit crops

Untitled

Chilli Anthracnose: A Review of Causal Organism, Resistance Source and Mapping of Gene

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