Muditha K Meegahakumbura

Dr. Muditha K Meegahakumbura


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 August 2024 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
KMKumudu Kanchanamala Manathunga
Kumudu Kanchanamala Manathunga
NGNiranjan W Gunasekara
Niranjan W Gunasekara
MMMuditha K Meegahakumbura
Muditha K Meegahakumbura
PRPamoda B Ratnaweera
Pamoda B Ratnaweera
TFTurki Kh. Faraj
Turki Kh. Faraj
Dhanushka Nadeeshan WanasingheDhanushka Nadeeshan Wanasinghe
Dhanushka Nadeeshan Wanasinghe
The yield and quality of cultivated food crops are frequently compromised by the prevalent threat from fungal pathogens that can cause widespread damage in both the pre-harvest and post-harvest stages. This paper investigates the challenges posed by fungal pathogens to the sustainability and yield of essential food crops, leading to significant economic and food security repercussions. The paper critiques the long-standing reliance on synthetic fungicides, emphasizing the environmental and health concerns arising from their widespread and occasionally inappropriate use. In response, the paper explores the potential of biological control agents, specifically endophytic fungi in advancing sustainable agricultural practices. Through their diverse symbiotic relationships with host plants, these fungi exhibit strong antagonistic capabilities against phytopathogenic fungi by producing various bioactive compounds and promoting plant growth. The review elaborates on the direct and indirect mechanisms of endophytic antagonism, such as antibiosis, mycoparasitism, induction of host resistance, and competition for resources, which collectively contribute to inhibiting pathogenic fungal growth. This paper consolidates the crucial role of endophytic fungi, i.e., Acremonium, Alternaria, Arthrinium, Aspergillus, Botryosphaeria, Chaetomium, Cladosporium, Cevidencealdinia, Epicoccum, Fusarium, Gliocladium, Muscodor, Nigrospora, Paecilomyces, Penicillium, Phomopsis, Pichia, Pochonia, Pythium, Ramichloridium, Rosellinia, Talaromyces, Trichoderma, Verticillium, Wickerhamomyces, and Xylaria, in biological control, supported by the evidence drawn from more than 200 research publications. The paper pays particular attention to Muscodor, Penicillium, and Trichoderma as prominent antagonists. It also emphasizes the need for future genetic-level research to enhance the application of endophytes in biocontrol strategies aiming to highlight the importance of endophytic fungi in facilitating the transition towards more sustainable and environmentally friendly agricultural systems.

3 April 2025 in Journal of Dry Zone Agriculture
Verified
Journal Article
Open access
PDF file
GKG. M. Kahawatte
G. M. Kahawatte
SWS. P. Withanage
S. P. Withanage
TDT. T. D. Dharmarathne
T. T. D. Dharmarathne
MMMuditha K Meegahakumbura
Muditha K Meegahakumbura
This study aimed to expedite the rubber breeding cycle by identifying promising genotypes in 2017 hand-pollinated (HP) progeny of 46 new clones. Growth parameters such as girth, bark thickness, leaf area, and average yield were recorded and analyzed to identify the superior genotypes. Physiological parameters and expression of the Rubber Elongation Factor (REF) gene were also used to select the best genotypes. Four genotypes were selected namely; 2017 HP 59, 2017 HP 60, 2017 HP 63 and 2017 HP 67 with better growth characteristics. The latex physiological parameters including sucrose, inorganic phosphorus, thiol, dry rubber content and total latex volume were examined. The analysis of physiological parameters shows that the 2017 HP 59 and 2017 HP 60 genotypes have a high potential for latex production. The results revealed an upregulation in the REF gene expression of the 2017 HP 59 and 2017 HP 60 genotypes. In addition, statistical analysis was conducted to assess the correlation between each growth parameter, and cluster analysis was performed.These analyses identified 2017 HP 63, 2017 HP 67, 2017 HP 7, 2017 HP 11, 2017 HP 66, 2017 HP 68 and 2017 HP 39 genotypes as suitable timber clones. With morphological, physiological and gene expression analysis, the 2017 HP 59 and 2017 HP 60 genotypes were selected as superior for direct large-scale field evaluations as latex clones. This would possibly bypass the small-scale field evaluation phase, saving approximately 10-12 years of the breeding cycle. However, it’s better to further analyze the REF gene expression results. Timber clones identified during the present study will be useful for the rubber timber processing industry.