What is it about?
The papaya tree is not very exploitable on the international market because of the post-harvest decline of the fruits. In this study, we identified arbuscular mycorrhizal fungi (AMF) from the rhizosphere of papaya in two agroecological zones of Cameroon (Njombe-Pendja: NP and Yaounde: Y). Morphological studies on the density, the rate of root colonization, the diversity of AMF species were evaluated. Molecular identification of AMF was performed by sequencing the small subunit (SSU) 18S rDNA gene region from soil samples.
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Why is it important?
The papaya tree (Carica papaya L.) is one of the most cultivated fruit trees of the Caricaceae family. It is a very importantNspecies from an economic point of view.. C. papaya L. has very high nutritional and nutraceutical properties. It is an important source of vitamin A, ascorbic acid, minerals (iron, calcium, potassium, etc.), polysaccharides and proteins. However, in Cameroon, depending on the variety, some highly productive papayas unfortunately face increased postharvest loss, affecting production sometimes going tomore than 50% yield loss. Native arbuscular mycorrhizal fungi can help to reduce the postharvest loss.
Perspectives
Papaya harbors arbuscular mycorrhizae with characteristic structures such as hyphae, vesicles and spores. The spores were morphologically different depending on the size, color, shape, presence or absence of the hypha and its mode of attachment to the spore. AMF would contribute to the regulation and absorption of calcium during the fruit ripening process. Indeed, calcium would reinforce the rigidity of the fruit pulp which would contribute to the reduction of post-harvest losses and increase storage time for exploitation on the international market.
Dr Carine TEMEGNE NONO
University of Yaounde I
Read the Original
This page is a summary of: Morphological and molecular diversity of arbuscular mycorrhizal fungi associated to Carica papaya L. rhizosphere in two agro-ecological zones in Cameroon, African Journal of Agricultural Research, August 2022, Academic Journals,
DOI: 10.5897/ajar2022.16072.
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