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Kuncoro, Seto Agung
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Agriculture, Biological Sciences & Forestry

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MORPHOLOGICAL IDENTIFICATION OF FUNGAL PATHOGENS ASSOCIATED WITH POST-HARVEST DISEASES Ulilalbab, Azizah Ridha; Cahyasita, Dhika; Pratiwi, Nova Wahyu; Ajri, Miftahul; Hanikaf, Uliyatul Muhmiroh; Kuncoro, Seto Agung
Jurnal Agrivet Vol 29, No 2 (2023): AGRIVET
Publisher : UNIVERSITAS PEMBANGUNAN NASIONAL ”VETERAN” YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/agrivet.v29i2.11001

Abstract

Post-harvest products are perishable and vulnerable to diseases that lead to quality deterioration and yield loss. One of the primary diseases found in most post-harvest products is caused by fungal pathogens. This study identified fungal pathogens associated with post-harvest products through morphological characterization. Fruit and vegetable samples were collected from traditional markets and fruit stores in Central Java. The results of fungal pathogens identification causing disease on post-harvest products showed that Pestalotiopsis sp and Neopestalotiopsis sp. were found on guava with white blackish mycelium, present concentric ring and blackspot, Aspergillus sp. on tomato with yellow-greenish mycelium, present concentric ring only, Botrytis sp. with grey mycelium and Rhizoctonia solani with white greyish mycelium and present of a concentric ring on apple, Rhizoctonia solani with greyish black and present of blackspot on mango, and Colletotrichum sp. with white greyish mycelium and present of a concentric ring, conidiomata and blackspot on citrus. This study concluded that the most fungal pathogens on post-harvest that we found were Pestaloptia sp., Rhizoctonia solani, Aspergillus sp., Botrytis sp., and Colletotrichum sp.
MORPHOLOGICAL IDENTIFICATION OF FUNGAL PATHOGENS ASSOCIATED WITH POST-HARVEST DISEASES Ulilalbab, Azizah Ridha; Cahyasita, Dhika; Pratiwi, Nova Wahyu; Ajri, Miftahul; Hanikaf, Uliyatul Muhmiroh; Kuncoro, Seto Agung
Jurnal Agrivet Vol 29 No 2 (2023): AGRIVET
Publisher : UNIVERSITAS PEMBANGUNAN NASIONAL ”VETERAN” YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/agrivet.v29i2.11001

Abstract

Post-harvest products are perishable and vulnerable to diseases that lead to quality deterioration and yield loss. One of the primary diseases found in most post-harvest products is caused by fungal pathogens. This study identified fungal pathogens associated with post-harvest products through morphological characterization. Fruit and vegetable samples were collected from traditional markets and fruit stores in Central Java. The results of fungal pathogens identification causing disease on post-harvest products showed that Pestalotiopsis sp and Neopestalotiopsis sp. were found on guava with white blackish mycelium, present concentric ring and blackspot, Aspergillus sp. on tomato with yellow-greenish mycelium, present concentric ring only, Botrytis sp. with grey mycelium and Rhizoctonia solani with white greyish mycelium and present of a concentric ring on apple, Rhizoctonia solani with greyish black and present of blackspot on mango, and Colletotrichum sp. with white greyish mycelium and present of a concentric ring, conidiomata and blackspot on citrus. This study concluded that the most fungal pathogens on post-harvest that we found were Pestaloptia sp., Rhizoctonia solani, Aspergillus sp., Botrytis sp., and Colletotrichum sp.
IDENTIFICATION AND CROSS INOCULATION OF Colletotrichum gloeosporioides ASSOCIATED IN MANDARIN CITRUS Ulilalbab, Azizah Ridha; Miftahul Ajri; Wicaksono, Danar; Poerwanto, Mofit Eko; Kuncoro, Seto Agung; Dhamira, Aura
Jurnal Agrivet Vol 31 No 3 (2025): AGRIVET
Publisher : UNIVERSITAS PEMBANGUNAN NASIONAL ”VETERAN” YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/agrivet.v31i3.13839

Abstract

Colletotrichum spp are important post-harvest pathogens that frequently cause anthracnose and significant quality deterioration in citrus. This study were aimed to identify morphological characteristics and genetic confirmation of Colletotrichum isolates associated with mandarin citrus , as well as to evaluate the cross-inoculation potential of these isolates among five post-harvest commodities. Anthracnose-infected citrus fruits were collected from a local market in Central Java, Indonesia. Fungal isolation was conducted using the single-spore technique, and identification was based on colony and conidial characteristics, followed by PCR amplification with the universal ITS1 and ITS4 primers. Cross-inoculation tests were performed on five post-harvest commodities. Morphological and genetic characteristics indicated that the isolates referred to Colletotrichum gloeosporioides, the causal agent of anthracnose in mandarin citrus. Colony characters were white-greyish colour with velvety texture, conidiomata, black spots, concentric rings, and fast-growing group. Conidia were cylindrical with rounded ends, measuring 12.02µm in length and 4.23µm in width on average. ITS amplification yielded a ±570 bp fragment that showed 98% similarity to C. gloeosporioides isolates from China, indicating a close relationship with the C. gloeosporioides species complex. Cross-inoculation tests showed that C. gloeosporioides can cause anthracnose symptoms in tomato, cayenne, pepper, citrus, and mango. The finding highlights that C. gloeosporioides was detected on mandarin fruits exhibiting anthracnose symptoms, and the potency of the cross-inoculation assay revealed the broad host range of this fungus.
Co-Authors Ajri, Miftahul Aura Dhamira Danar Wicaksono, Danar Dhika Cahyasita Hanikaf, Uliyatul Muhmiroh Miftahul Ajri Mofit Eko Poerwanto NOVA WAHYU PRATIWI, NOVA WAHYU Ulilalbab, Azizah Ridha