scholarly journals EFFECT OF SOME SALTS ON THE MYCELIAL GROWTH AND SPORE GERMINATION OF FUNGI CAUSED FRUIT ROT OF SWEET PEPPER POST-HARVEST DISEASES PATHOGENS

2021 ◽  
Vol 26 (3) ◽  
pp. 433-446
Author(s):  
Amira Tawfik ◽  
Aly Koriem ◽  
Sayied Younis ◽  
Mohamed Elian
Keyword(s):  
Spore Germination ◽  
Mycelial Growth ◽  
Sweet Pepper ◽  
Fruit Rot ◽  
Post Harvest

scholarly journals The effect of fungicides on spore germination, mycelial growth and lesion development of Phlyctema vagabunda (syn: Neofabraea alba) (bull’s eye rot of apples)

2017 ◽  
Vol 70 ◽  
pp. 112-119 ◽  
Author(s):  
P.N. Wood ◽  
B.M. Fisher
Keyword(s):  
Spore Germination ◽  
Mycelial Growth ◽  
Pathogenic Fungus ◽  
Apple Fruit ◽  
Fruit Rot ◽  
Copper Hydroxide ◽  
Lesion Development ◽  
Lime Sulphur ◽  
Bull's Eye

Phlyctema vagabunda (syn: Neofabraea alba) is a plant pathogenic fungus that causes bull’s eye rot on apples and pears. Phlyctema vagabunda fruit infections occur in orchards predominantly pre-harvest, and eventually express as a fruit rot after 4—5 months of cool storage. Twelve fungicides (captan, carbendazim, copper hydroxide, cyprodinil, difenoconazole, dithianon, dodine, isopyrazam, metiram, lime sulphur, sulphur and trifloxystrobin) were tested in vitro for their effects on spore germination and mycelial growth of P. vagabunda. Spore germination was inhibited by metiram, captan, dodine, dithianon, lime sulphur, carbendazim and isopyrazam, in order of effectiveness. Carbendazim, isopyrazam, difenoconazole and cyprodinil, in order of effectiveness, inhibited mycelial growth when used at label rates. Wettable sulphur was ineffective in both assays. On detached apple fruit, carbendazim, cyprodinil, trifloxystrobin and isopyrazam (in order of effectiveness) inhibited lesion development.

scholarly journals ANTIFUNGAL ACTIVITY OF SOME ESSENTIAL OILS AGAINST POST-HARVEST FRUIT ROT OF SWEET PEPPER

2021 ◽  
Vol 26 (3) ◽  
pp. 447-462
Author(s):  
Amira Tawfik ◽  
Sayed Younis ◽  
Aly Koriem ◽  
Mohamed Elian
Keyword(s):  
Antifungal Activity ◽  
Essential Oils ◽  
Sweet Pepper ◽  
Fruit Rot ◽  
Post Harvest

scholarly journals Antifungal activity of medicinal plants, Adathoda vasica and Andrographis paniculata against Colletotrichum capsici, the chilli fruit rot pathogen

2021 ◽  
Vol 42 (6) ◽  
pp. 1461-1469
Author(s):  
K. Priya ◽  
◽  
G. Thiribhuvanamala ◽  
C. Sangeetha ◽  
A. Kamalakannan ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Spore Germination ◽  
Mycelial Growth ◽  
Andrographis Paniculata ◽  
Fruit Rot ◽  
Antimicrobial Compounds ◽  
Ftir Analysis ◽  
Antimicrobial Metabolites ◽  
Ethyl Acetate Extracts

Aim: The objective was formulated to screen the extracts of medicinal plants for tapping the antimicrobial activity against Collectotrichum capsici. Further, the work was planned to characterize and identify the nature of antimicrobial compounds and their functional groups. Methodology: Extracts of eleven medicinal plants were tested against the mycelial growth and spore germination of C. capsici under in-vitro conditions. Based on these results, the potential plant extracts of A. vasica and A. paniculata found effective against C. capsici were assayed for the presence of antimicrobial metabolites through TLC, GC-MS and FTIR analysis. Results: Among the medicinal plants screened, the crude extracts from Adathoda vasica and Andrographis paniculata inhibited mycelial growth and spore germination of C. capsici by 53.33% and 38.14%, respectively, under in-vitro conditions. GC-MS analysis of ethyl acetate extracts of A. vasica indicated antimicrobial compound, 1H-Pyrrolo[2,1-b]quinazolin-9-one,3-hydroxy-2,3-dihydro- and A. paniculata showed the presence of two compounds, docosahexaenoic acid and oleic acid. Similarly, FTIR analysis revealed esters, alcohols, and halide groups, which are known antimicrobials. Interpretation: The medicinal plants, A. paniculata and A. vasica possessed antimicrobial metabolites, which was responsible for inhibiting the mycelial growth and spore germination of C. capsici.

scholarly journals First report of Penicillium glaucum Link causing Penicillium rot of pear fruits Pyrus communis L. in Jammu and Kashmir, India

2017 ◽  
Vol 4 (8) ◽  
pp. 265-272
Author(s):  
Shazia Parveen ◽  
Abdul Hamid Wani ◽  
Mohd Yaqub Bhat ◽  
Tariq Ahmad Wani ◽  
Abdul Rashid Malik
Keyword(s):  
Spore Germination ◽  
Mycelial Growth ◽  
Pyrus Communis ◽  
Fruit Rot ◽  
Morphological Data ◽  
Morphological Observation ◽  
Pathogenicity Test ◽  
First Report ◽  
Pyrus Communis L

Pears Pyrus communis L. collected from different sites of Kashmir Valley were found infected with Penicillium glaucum causing Penicillium rot. The diseased fruits appears light tan to dark brown. The decayed tissue becomes soft, watery and the lesion has a very sharp margin between diseased and healthy tissues. Decayed fruit has an earthy, musty odor. The pathogen was isolated and cultured on PDA medium for further fungal morphological observation and confirming its pathogenicity according to Koch’s postulates. Results of morphological data and pathogenicity test showed that the pears were infected by Penicillium glaucum Link resulting in Penicillium rot of pears. To our knowledge, it is the first report of pear fruit rot caused by P. glaucum in India. Study was also undertaken for the management of Penicillium rot of pear with some fungicides. It was revealed from the study that different concentration of fungicides brought about significant reduction in the mycelial growth and spore germination of Penicillium glaucum under in vitro conditions. Amongst the tested fungicides, carbendazim proved highly effective in inhibiting the mycelial growth and spore germination of Penicillium glaucum followed by hexaconozole, bitertanol and myclobutanil respectively. Higher concentration proved effective than lower concentrations.

scholarly journals Inhibition of spore germination and mycelial growth of three fruit rot pathogens using some chemical fungicides and botanical extracts

1970 ◽  
Vol 5 ◽  
pp. 23-27 ◽  
Author(s):  
Most. Ferdousi Begum ◽  
Mst Ferdowsi Mahal ◽  
Md Shahidul Alam
Keyword(s):  
Plant Extracts ◽  
Spore Germination ◽  
Mycelial Growth ◽  
Inhibitory Effect ◽  
Fruit Rot ◽  
Inhibitory Effects ◽  
Datura Metel ◽  
Alternaria Tenuis ◽  
Chemical Fungicides ◽  
Seed Extracts

Six chemical fungicides and extracts of 15 locally available plants were tested against three fruit rot pathogens viz. Fusarium oxysporium f. sp. capsici, Rhizopus artocurpi and Alternaria tenuis for the evaluation of inhibition of spore germination and mycelial growth. Among the fungicides tested, all the concentrations of Ridomil showed 100% inhibition of spore germination and the least inhibition was recorded in case of treatment with Bavistin for F. oxysporium f. sp. capsici. In case of R. artocarpi and A. tenuis, Dithene–M 45 showed good inhibitory effects but Thiovit had no inhibitory effect against A. tenuis. Both leaf and seed extracts of Azadirachta indica showed good inhibitory effect than tested with other plant extracts. Moringa oleifera extract showed least inhibitory effect against all the fungi tested. Datura metel, Plygonum oriantale, Tagestes patula and Micania scandens also showed promising inhibition on spore germination and mycelial growth of all the pathogens tested. Key words: Fruit rot pathogens; plant extracts; chemical fungicides; spore germination; mycelial growth; PIGR DOI: 10.3329/jles.v5i0.7344 J. Life Earth Sci., Vol. 5: 23-27, 2010

scholarly journals Post-Harvest Control of Anthracnose of Mango (Mangifera indica L. var Kent) using Essential Oils Extracted from two Aromatic Plants (Cymbopogon citratus (D C) Stapf. and Melaleuca quinquenervia L.) of the Ivorian Flora

2021 ◽  
Vol 10 (11) ◽  
pp. 277-293
Author(s):  
KOUAME Koffi Gaston KOUAME Konan Didier ◽  
KASSI Koffifernand Jean Martial KONE Daouda
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Spore Germination ◽  
Mycelial Growth ◽  
Melaleuca Quinquenervia ◽  
Chemical Parameters ◽  
Cymbopogon Citratus ◽  
Post Harvest ◽  
Physico Chemical

Mango anthracnose is one of the most important mango diseases in Côte d'Ivoire. The chemical approach to control this disease is today decried by consumers, because of the pesticide residues left in the fruit. The search for alternative control solutions, that respect the environment and are less polluting is becoming a necessity. Thus, the use of essential oils in the protection of mangoes against fruit pests before and especially after harvest is a promising solution. The present study aimed to reveal the inhibitory efficacy of essential oil of Melaleuca quinquenervia L. and Cymbopogon citratus (D.C) Stapf against Colletotrichum gloeosporioides (Penz.) Penz & Sacc causal agent of mango anthracnose, stored at room temperature. Five doses (100; 200; 500; 1,000 and 2,000 ppm) of each product were tested in vitro on mycelial growth and spore germination of C. gloeosporioides. In vivo, 700 and 1,400 ppm of C. citratus L. and 1,200 and 12,000 ppm of M. quinquenervia L. were tested against anthracnose in artificially inoculated mangoes. The impact of the different doses of these species on the physico-chemical parameters of the treated fruits was evaluated on day 11. Results showed that mycelial growth and spore germination were totally inhibited by C. citratus essential oil at 1,000 and 2,000 ppm throughout the experiment. In Vivo, the 1,200 ppm dose of M. quinquenervia strongly reduced the occurrence and progression of anthracnose in treated fruits compared to the control with an efficiency rate of 77.76 ± 8.73 and 86.63 ± 5.21%, respectivement. The essences did not significantly influence the physico-chemical parameters of the fruits. The doses 1,200 ppm of M. quinquenervia and 1,400 ppm of C. citratus can be recommended in a post-harvest biological control strategy against mangoes anthracnose.

Effects of Bacillus velezensis on Fusarium avenaceum, a causal agent of post-harvest apple fruit rot

2020 ◽  
Author(s):  
Mladen Petres ◽  
Marta Loc ◽  
Mila Grahovac ◽  
Vera Stojsin ◽  
Dragana Budakov ◽  
...  
Keyword(s):  
Apple Fruit ◽  
Causal Agent ◽  
Fruit Rot ◽  
Fusarium Avenaceum ◽  
Bacillus Velezensis ◽  
Post Harvest

scholarly journals Isolatation and Identification of the Fungi Causing Tomato Fruit Rot Disease in the Vicinity of Tandojam, Sindh

2020 ◽  
Author(s):  
S. Nizamani ◽  
A. A. Khaskheli ◽  
A. M. Jiskani ◽  
S. A. Khaskheli ◽  
A. J. Khaskheli ◽  
...  
Keyword(s):  
Tomato Fruit ◽  
Aerial Mycelium ◽  
Alternaria Solani ◽  
Economic Loss ◽  
Geotrichum Candidum ◽  
Fruit Rot ◽  
Post Harvest ◽  
Standard Procedures ◽  
Fruit Samples ◽  
Rot Disease

Background: The post-harvest tomato fruit rot disease is common threat to the tomato fruit, causing huge economic loss as revealed by (GOP, 2018). The present study was conducted for isolatation and identification of causative agent of tomato fruit rot in order to formulate the proper management stretegies. Methods: Study was conducted in three phases. Phase one included collection of tomato fruit samples from vicinity of Tandojam. In phase two pathogens were isolated from the samples at laboratory, while in the phase three pathogens were identified using standard procedures. Result: The experimental results indicated Alternaria solani as the main cause of post-harvest tomato fruit rot. The symptoms observed were presence of brown to black rot lesions on tomato fruits with distinct rings ranging from small pin-heads to whole surface of fruit. A total of six different fungi viz., Alternaria alternata, Aspergillus niger, Alternaria solani, Geotrichum candidum, Fusarium oxysporum and Rhizopus stolonifer were found to be associated with post harvest tomato rot. Significantly higher infection was recorded for A. solani (53.667%) followed by A. niger (16.333%) and G. candidum (13.00%). The lowest infection percentage was observed for F. oxysporum (2.333%), followed by A. alternata (4.00%) and R. stolonifer (9.00%). A. solani produced aerial mycelium with yellowish to reddish diffusible pigments. A. niger cultures were typically black and colonies were initially whitish to yellow and later became brown to black in colour. G. candidum produced white and nonaerial colonies. F. oxysporum produced circular, aerial mycelium initially white, later changed to light pink. R. stolonifer produced whitish to grey fuzzy colonies.

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