Colletotrichum coccodes: Difference between revisions

Latest revision as of 16:28, 16 February 2025

Colletotrichum coccodes[edit]

Colletotrichum coccodes is a species of fungus in the genus Colletotrichum. It is a significant plant pathogen known for causing anthracnose in a variety of host plants, particularly in solanaceous crops such as tomatoes and potatoes.

Description[edit]

Colletotrichum coccodes is characterized by its production of dark, melanized sclerotia and conidia. The conidia are typically hyaline, smooth, and cylindrical, which are produced in acervuli on infected plant tissues. The sclerotia allow the fungus to survive in the soil and plant debris, contributing to its persistence and spread.

Life Cycle[edit]

The life cycle of Colletotrichum coccodes involves both asexual and sexual reproduction, although the asexual stage is more commonly observed. The fungus overwinters as sclerotia in the soil or on plant debris. In favorable conditions, conidia are produced and dispersed by water splash or wind, leading to new infections. The pathogen can infect plants at any stage of growth, causing lesions on leaves, stems, and fruits.

Symptoms[edit]

Infected plants exhibit a range of symptoms, including dark, sunken lesions on fruits, stems, and leaves. These lesions may coalesce, leading to significant tissue damage. In potatoes, Colletotrichum coccodes can cause black dot disease, characterized by small, black sclerotia on the tuber surface.

Host Range[edit]

Colletotrichum coccodes has a broad host range, primarily affecting members of the Solanaceae family. It is a common pathogen of tomatoes (Solanum lycopersicum), potatoes (Solanum tuberosum), and eggplants (Solanum melongena). The fungus can also infect other plant families, although less frequently.

Management[edit]

Management of Colletotrichum coccodes involves integrated strategies, including cultural practices, resistant varieties, and chemical control. Crop rotation and sanitation are crucial to reduce inoculum levels in the field. Fungicides may be applied to protect plants, especially during periods of high humidity and rainfall, which favor disease development.

Related Pages[edit]

@@ Line 1: / Line 1: @@
-'''Colletotrichum coccodes''' is a [[fungus|fungal]] [[pathogen]] that is known to cause [[Anthracnose (plant disease)|anthracnose]] and black dot disease in a variety of [[crop]]s. It is a member of the [[Colletotrichum]] genus, which comprises a large number of species that cause anthracnose diseases in many important agricultural and horticultural crops.
+== Colletotrichum coccodes ==
-== Taxonomy ==
+[[File:Colletotrichum_coccodes.jpg|thumb|right|Colletotrichum coccodes spores under a microscope]]
-The species name ''coccodes'' is derived from the Greek word 'kokkos', which means 'berry', referring to the spherical shape of its [[spore]]s. The genus ''Colletotrichum'' is classified under the [[Ascomycota]] phylum, which is the largest phylum of the kingdom [[Fungi]].
-== Hosts and Symptoms ==
+'''Colletotrichum coccodes''' is a species of [[fungus]] in the genus ''[[Colletotrichum]]''. It is a significant [[plant pathogen]] known for causing [[anthracnose]] in a variety of [[host plants]], particularly in [[solanaceous crops]] such as [[tomatoes]] and [[potatoes]].
-''Colletotrichum coccodes'' has a wide host range, including [[tomato]]es, [[potato]]es, [[pepper]]s, and other members of the [[Solanaceae]] family. Symptoms of infection include dark, sunken lesions on fruits and black dot symptoms on tubers. In severe cases, the pathogen can cause significant yield losses.
-== Disease Cycle ==
+== Description ==
-The disease cycle of ''Colletotrichum coccodes'' is complex and involves several stages. The fungus overwinters in infected plant debris in the soil. In the spring, the fungus produces spores that are spread by wind or rain splash to healthy plants. The spores germinate and penetrate the plant tissue, causing infection. The fungus then produces more spores, which can spread to other plants, continuing the disease cycle.
+''Colletotrichum coccodes'' is characterized by its production of dark, melanized [[sclerotia]] and conidia. The conidia are typically hyaline, smooth, and cylindrical, which are produced in acervuli on infected plant tissues. The sclerotia allow the fungus to survive in the soil and plant debris, contributing to its persistence and spread.
+== Life Cycle ==
+The life cycle of ''Colletotrichum coccodes'' involves both asexual and sexual reproduction, although the asexual stage is more commonly observed. The fungus overwinters as sclerotia in the soil or on plant debris. In favorable conditions, conidia are produced and dispersed by [[water splash]] or [[wind]], leading to new infections. The pathogen can infect plants at any stage of growth, causing lesions on leaves, stems, and fruits.
+== Symptoms ==
+Infected plants exhibit a range of symptoms, including dark, sunken lesions on fruits, stems, and leaves. These lesions may coalesce, leading to significant tissue damage. In [[potatoes]], ''Colletotrichum coccodes'' can cause [[black dot disease]], characterized by small, black sclerotia on the tuber surface.
+== Host Range ==
+''Colletotrichum coccodes'' has a broad host range, primarily affecting members of the [[Solanaceae]] family. It is a common pathogen of [[tomatoes]] (''[[Solanum lycopersicum]]''), [[potatoes]] (''[[Solanum tuberosum]]''), and [[eggplants]] (''[[Solanum melongena]]''). The fungus can also infect other plant families, although less frequently.
 == Management ==
-Management of ''Colletotrichum coccodes'' involves a combination of cultural practices, chemical control, and resistant varieties. Cultural practices include crop rotation, sanitation, and avoiding overhead irrigation. Chemical control involves the use of [[fungicide]]s. Breeding for resistance is also an important strategy in managing this pathogen.
-== See Also ==
+Management of ''Colletotrichum coccodes'' involves integrated strategies, including cultural practices, resistant varieties, and chemical control. Crop rotation and sanitation are crucial to reduce inoculum levels in the field. Fungicides may be applied to protect plants, especially during periods of high humidity and rainfall, which favor disease development.
-* [[Anthracnose (plant disease)|Anthracnose]]
-* [[Colletotrichum]]
+== Related Pages ==
-* [[Ascomycota]]
+* [[Anthracnose]]
+* [[Plant pathology]]
+* [[Fungal diseases of plants]]
 * [[Solanaceae]]
-== References ==
+{{Fungi}}
-<references />
+[[Category:Plant pathogens and diseases]]
 [[Category:Fungal plant pathogens and diseases]]
 [[Category:Colletotrichum]]
-{{Fungus-stub}}
-{{food-stub}}