scholarly journals Harnessing the Antimicrobial Prospects of Mushroom Fungi against Colletotrichum gloeosporioides Penz. Causing Post-Harvest Anthracnose Disease of Mango

2020 ◽  
Vol 9 (7) ◽  
pp. 281-289
Author(s):  
M. Gayathri ◽  
G. Thiribhuvanamala ◽  
A. S. Krishnamoorthy ◽  
S. Haripriya
Keyword(s):  
Colletotrichum Gloeosporioides ◽  
Anthracnose Disease ◽  
Post Harvest

scholarly journals Effectiveness of fungal, bacterial and yeast antagonists for management of mango anthracnose (Colletotrichum gloeosporioides)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Adikshita Sharma ◽  
Inder Mohan Sharma ◽  
Monica Sharma ◽  
Kishor Sharma ◽  
Amit Sharma
Keyword(s):  
Disease Management ◽  
Disease Control ◽  
Colletotrichum Gloeosporioides ◽  
Agar Medium ◽  
Field Conditions ◽  
Pichia Anomala ◽  
Malt Extract ◽  
Potato Dextrose Agar Medium ◽  
Anthracnose Disease ◽  
Post Harvest

Abstract Background Mango anthracnose, caused by Colletotrichum gloeosporioides, is one of the most important diseases of mango crop. It mainly attacks leaves, flowers, young fruits and twigs and also appears as a post-harvest disease of ripened fruits. Application of bio-control agents has huge potential in plant disease management. The goal of the present research was to establish the potential of individual and combined bio-control agents for the management of mango anthracnose under in vitro and under field conditions. Results The antagonistic reaction of six fungi, six bacteria and nine yeasts against C. gloeosporioides on potato dextrose agar medium and malt extract agar medium was observed among which Trichoderma harzianum was found to be the most efficient with 89.26% mycelial growth inhibition. Evaluation of bio-control agents against anthracnose disease development on mango fruit revealed that dip treatment of mango fruits in spore suspension (1.2 × 104 cfu/ml) of T. harzianum for 5 min was the most effective and provided disease control to the tune of 81.67%. Combined application of effective bio-control agents as a post-harvest fruit dip treatment was also evaluated against the mango anthracnose on mango fruits, where the treatment of T. harzianum + Pichia anomala was very effective with 93.39% disease control. Under field conditions, three consecutive sprays of T. harzianum, starting with the initiation of disease on leaves, followed by other two sprays at an interval of 15 days during 2015 and 2016 were found the best for the management of mango anthracnose disease both on leaves and on fruits at two locations. Conclusions The combined and individual applications of bio-control agents, viz.T. harzianum, Bacillus subtilis and P. anomala, through foliar spray or by fruit dip had the potential to control mango anthracnose. The bio-formulations of these bio-control agents had the potential to replace chemical fungicides and also protect the natural environment, thus playing a significant role in integrated disease management.

scholarly journals Differentiation of Colletotrichum gloeosporioides isolates by using total proteins and esterase electrophoretic patterns and extracellular enzymes production

2010 ◽  
Vol 36 (2) ◽  
pp. 140-144 ◽  
Author(s):  
Tereza Cristina de Assis ◽  
Maria Menezes ◽  
Domingos Eduardo Guimarães Tavares de Andrade ◽  
Rildo Sartori Barbosa Coelho
Keyword(s):  
Extracellular Enzymes ◽  
Colletotrichum Gloeosporioides ◽  
Electrophoretic Analysis ◽  
Solid Substrate ◽  
Causal Agent ◽  
Total Proteins ◽  
Anthracnose Disease ◽  
Electrophoretic Patterns

Isolates of Colletotrichum gloeosporioides (ISO-1, ISO-2, ISO-3, ISO-4, ISO-5 and ISO-6), the causal agent of anthracnose disease on mango fruits, were characterized by electrophoretic patterns of total proteins and esterase in polyacrylamida gel, and also, by production of extracellular enzymes on specific solid substrate. The electrophoretic analysis showed variation in number, intensity of coloration and position of the bands in the gel at each studied system tested. In contrast to the monomorphic behavior to total proteins, high esterase polymorfism was observed indicating difference among isolates. All isolates showed the activity of extracellular enzymes such as amylase, lipase, and protease with some variation among them. The proteolitic activity seemed to be more accentuated than the two other enzymes studied.

scholarly journals Host-induced silencing of the Colletotrichum gloeosporioides conidial morphology 1 gene (CgCOM1) confers resistance against Anthracnose disease in chilli and tomato

2020 ◽  
Vol 104 (4-5) ◽  
pp. 381-395
Author(s):  
Binod Kumar Mahto ◽  
Anjulata Singh ◽  
Manish Pareek ◽  
Manchikatla V. Rajam ◽  
Swatismita Dhar-Ray ◽  
...  
Keyword(s):  
Colletotrichum Gloeosporioides ◽  
Anthracnose Disease ◽  
Conidial Morphology

Differentiation of lineages within “ Colletotrichum gloeosporioides s.l.” associated with cassava anthracnose disease by BOX‐ and ERIC‐PCRs

2019 ◽  
Vol 167 (4) ◽  
pp. 218-229 ◽  
Author(s):  
Leandro Lopes da Silva ◽  
Carlos Augusto Dórea Bragança ◽  
Cláudia Fortes Ferreira ◽  
Maria Selma Alves Silva Diamantino ◽  
Saulo Alves Santos de Oliveira
Keyword(s):  
Colletotrichum Gloeosporioides ◽  
Anthracnose Disease

scholarly journals Biological Control of Thielaviopsis paradoxa and Colletotrichum gloeosporioides by the Extracellular Enzymes of Wickerhamomyces anomalus

Agriculture ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 325
Author(s):  
Luis Fernando Zepeda-Giraud ◽  
Dario Rafael Olicón-Hernández ◽  
Juan Pablo Pardo ◽  
Minerva Georgina Araiza Villanueva ◽  
Guadalupe Guerra-Sánchez
Keyword(s):  
Extracellular Enzymes ◽  
Colletotrichum Gloeosporioides ◽  
Culture Media ◽  
Crop Protection ◽  
Fungal Growth ◽  
Antagonistic Effect ◽  
Economic Losses ◽  
Post Harvest ◽  
Wickerhamomyces Anomalus ◽  
Yeast Peptone Dextrose

An alternative to chemical fungicides in post-harvest diseases are the use of biocontrol agents and their extracellular products against phytopathogens. Two relevant agents in post-harvest infections are Thielaviopsis paradoxa and Colletotrichum gloeosporioides, causing large economic losses in cacao, pineapple, and avocado during storage. In this work, we evaluated the effect of Wickerhamomyces anomalus, an effective biocontrol agent, against these filamentous fungi, focusing on the production of extracellular enzymes and their effect on fungal growth and germination. Moreover, we evaluated the use of inactivated fungal biomass as an inducer in complete (Potato Dextrose Agar and Yeast Peptone Dextrose) and minimal culture media. The antagonistic effect of W anomalus on the growth of both phytopathogens was also studied. The extracellular enzymes in YPD cultures, using T. paradoxa inactivated biomass as the best inducer, were capable of inhibiting the germination of both phytopathogens. In minimal media, only the production of a 30 kDa glucanase with activity against laminarin was observed. The enzyme was effective against the spore germination of T. paradoxa. In post-harvest crop protection tests, growth inhibition of T. paradoxa was observed using the cell-free enzyme extract, which is a promising system to protect cocoa fruits from T. paradoxa during post-harvest.

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