Infection and Quiescence of Mango Stem-End Rot Pathogens

Johnson, G. C.; Cooke, T.; Mead, A.

doi:10.17660/actahortic.1993.341.36

Cited by 16 publications

(15 citation statements)

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“…Elsewhere the presence of a pedicel (0.5-0.8 cm) was shown to delay SER development (Meah 1993). Johnson et al (1992) on the other hand, reported significantly higher levels of natural SER infection in latex retained fruits and suggested that the retained pedicel would harbour the endophytic stem-end rot pathogen longer. The present study found a negative trend between the length of stalk retained and the level anthracnose or SER development in the ripe fruit of two cultivars susceptible to respective diseases, showing the impact of pedicel retention was greater with the increase of its length.…”

Section: Discussionmentioning

confidence: 99%

“…and stemend rot (SER) caused by Botryodiplodia theobromae (Adikaram et al 2010), Dothiorella spp., Phomopsis mangiferae, Pestalotiopsis sp. and Cytosphaera mangiferae (Johnson et al 1992) are among the most serious postharvest diseases in ripe mangoes. Anthracnose disease originates from quiescent Colletotrichum infections in the immature fruit.…”

Section: Introductionmentioning

confidence: 99%

“…The symptoms include limited, often sunken, blackish necrotic lesions in the fruit peel. SER becomes a serious postharvest disease of mango when anthracnose disease is well controlled (Johnson et al 1992). The disease first appears as a dark area in the skin around the base of the fruit pedicel which advances into soft, watery and a pale colour rot radiating from the stemend.…”

Section: Introductionmentioning

confidence: 99%

“…The disease first appears as a dark area in the skin around the base of the fruit pedicel which advances into soft, watery and a pale colour rot radiating from the stemend. Major SER pathogens are believed to be enodophytic (Johnson et al 1992). Cultivar differences in resistance to anthracnose and stem-end rot and antifungal activity exist.…”

Section: Introductionmentioning

confidence: 99%

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Retention of latex at harvest, enhanced mango (Mangifera indica L.) fruit resistance and reduced anthracnose and stem-end rot

Karunanayake

Sinniah

Adikaram

et al. 2014

Australasian Plant Pathol.

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Unripe mangoes contain a network of minute latex canals in its exocarp, outer mesocarp and the pedicel. Latex, when retrieved, separates into an upper oily layer containing antifungal resorcinols and a lower aqueous layer with chitinase activity. Latex disappears in coincidence with ripening and decline of fruit resistance to fungal pathogens. The present study investigated if retention of latex at harvest enhances fruit resistance and reduces anthracnose and the stem-end rot (SER) development during ripening. Latex was retained by harvesting fruit with a portion (approximately 1 cm) of pedicel while in the controls, latex was drained off by removing the pedicel. Anthracnose and SER development from natural infections or following artificial inoculation was assessed at ripe stage. The results showed a significant reduction in the incidence and severity of anthracnose in the cultivar 'Willard' susceptible to anthracnose when latex was retained at harvest. There was delayed SER development when latex was retained in the susceptible cultivar 'Karutha Colomban'. A negative trend was observed between the pedicel length and anthracnose or SER level in cultivars susceptible to the two respective diseases. The fruit peel in which latex was retained had greater chitinase activity. The reduction of anthracnose and SER could be due to the greater resorcinols and chitinase activity respectively in latex-retained fruit. The results indicate a direct involvement of latex in fruit resistance and the possibility of its manipulation to protect ripe fruit from fungal rotting.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Retention of latex at harvest, enhanced mango (Mangifera indica L.) fruit resistance and reduced anthracnose and stem-end rot

Karunanayake

Sinniah

Adikaram

et al. 2014

Australasian Plant Pathol.

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“…Phomopsis mangiferae: Colonies on potato dextrose agar appear as white-grey mycelium, with scattered pycnidia in small clumps, with conidia extruding in droplets. Conidiophores hyaline, bearing two kinds of conidia, α conidia hyaline, fusiform to ellipsoidal and biguttulate while ß conidia hyaline, unicellular and filiform (Johnson et al, 1993). Cytosphaera mangiferae: Conidiomata produced in concentric bands, superficial and pulvinate.…”

Section: Resultsmentioning

confidence: 99%

Exploitation of Natural Products as an Alternative Strategy to Control Stem End Rot Disease of Mango Fruit in Pakistan

Alam¹

2017

PAKJAS

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Stem end rot (SER) disease development is the major issue affecting the delivery of quality mangoes to distance markets, especially through sea-shipments. Non availability of registered fungicidal products in Pakistan for the management of SER disease of mango is a major hurdle to overcome this enigma. Investigations were carried out to exploit natural products instead of fungicides for the effective management of SER. Fully mature but unripe mango fruits were collected from major mango growing belt of Punjab Province. The fruits were stored in cold storage (12°C; 4-5 weeks) and ambient storage (25°C; 2 weeks). After ripening, fruit under ambient and cold storage revealed that SER was the most prevalent disease. Associated pathogens appeared during ripening were isolated and identified as Lasiodiplodia theobromae, Phomopsis mangiferae, Colletotrichum gloeosporioides, Alternaria alternata, Botrytis cinerea and Cytosphaera mangiferae. In subsequent research, the efficacy of different plant extracts (Cichorium intybus, Peganum harmala, Syzygium aromaticum, Moringa oleifera, Coriandrum sativum and Cinnamomum zeylanicum) at different concentrations was evaluated in vitro and in vivo. Results revealed that M. oliefera, S. aromaticum and C. zeylanicum showed statistically significant antifungal activity against mycelial growth of tested pathogens and SER development.

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Study of Lasidiodiplodia pseudotheobromae, Neofusicoccum parvum and Schizophyllum commune, three pathogenic fungi associated with the Grapevine Trunk Diseases in the North of Tunisia

et al. 2018

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Infection and Quiescence of Mango Stem-End Rot Pathogens

Cited by 16 publications

References 0 publications

Retention of latex at harvest, enhanced mango (Mangifera indica L.) fruit resistance and reduced anthracnose and stem-end rot

Retention of latex at harvest, enhanced mango (Mangifera indica L.) fruit resistance and reduced anthracnose and stem-end rot

Exploitation of Natural Products as an Alternative Strategy to Control Stem End Rot Disease of Mango Fruit in Pakistan

Study of Lasidiodiplodia pseudotheobromae, Neofusicoccum parvum and Schizophyllum commune, three pathogenic fungi associated with the Grapevine Trunk Diseases in the North of Tunisia

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