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Science News: Genomes of mango, pomegranate pathogens decoded ...

Subhra Priyadarshini
                                                                                            The genomes of pathogen affecting mango (left) and pomegranate have been decoded.© CIRAD & IITK

In what they claim to be the first such reports on plant pathogens from India, scientists have decoded the complete genome sequence of bacteria affecting two important fruits of the country — mango and pomegranate.

The scientists from Chandigarh-based Institute of Microbial Technology (IMTECH), a laboratory of India's Council of Scientific and Industrial Research (CSIR), have announced the fully annotated genome of theXanthomonas pathogens that infect these fruits1, 2. Interestingly, they have found that the genomes of the mango and pomegranate pathovars (highly specialized bacterial strains) are not just closely related to each other but also to that of the citrus pathogen.

The diseases caused by these Xanthomonas pathovars of mango, citrus and pomegranate were first noticed in India. "The striking similarities in the genomes suggest that India may be the probable region of origin and diversification of these fruits pathogens," says says Prabhu B. Patil, who led the IMTECH research.

The researchers mapped numerous genes of virulent and pathogenic potential. They also identified some unique genes and markers that will help in epidemiology and quarantine of these fruit pathogens.

"While a lot of research is done on the genomics and evolution of the citrus canker disease because of its worldwide significance, not much has been done to study mango and pomegranate pathogens, which are particularly devastating for India," Patil says.

India is the largest producer of mango, pomegranate and citrus fruits in the world. However, their production and export is hit by diseases caused by the pathovars of genus Xanthomonas. In mango, the disease is known as bacterial black spot and the causal agent is Xanthomonas citri pv. mangiferaeindicae (Xcm). In citrus, the disease is known as bacterial canker and the causal agent is Xanthomonas axonopodis pv. citri (Xac).

"Both these pathovars are serious problems throughout the world," Patil says.

In pomegranate, the disease is known as bacterial blight or telya (oily spots) and the causal agent is Xanthomonas axonopodis pv. punicae (Xap). The pathogen threatens pomegranate cultivation in India because of its devastating effect on all parts of the plant. Though endemic to India as of now, it is a potential threat to pomegranate crops across the world, Patil contends.

The genome study, the team says, could unlock deeper aspects on the evolutionary history of bacterial phytopathogens of India.

Sharma, V. et al. Genome sequence of Xanthomonas axonopodis pv. punicae, Strain LMG 859. J. Bacteriol. 194, 2395 (2012)
Midha, S. et al. Genome sequence of Xanthomonas citri pv. mangiferaeindicae, Strain LMG 941. J. Bacteriol. 194, 3031 (2012)

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While "Flavor" is very subjective, and each country that grows mangoes is very nationalistic, these are the mango varieties that are the most sought after around the world because of sweetnesss (Brix) and demand.

The Chaunsa has a Brix rating in the 22 degree level which is unheard of!
Carabao claims to be the sweetest mango in the world and was able to register this in the Guiness book of world records.
Perhaps it is time for a GLOBAL taste test ???

In alphabetical order by Country....



Alphonso (mango)
From Wikipedia, the free encyclopedia

Alphonso (हापुस Haapoos in Marathi, હાફુસ in Gujarati, ಆಪೂಸ್ Aapoos in Kannada) is a mango cultivar that is considered by many[who?] to be one of the best in terms of sweetness, richness and flavor. 

It has considerable shelf life of a week after it is ripe making it exportable. 

It is also one of the most expensive kinds of mango and is grown mainly in Kokan region of western India.

 It is in season April through May and the fruit wei…

7 Medicinal Properties Of Mango Leaves That You Aren’t Aware Of!

By admin

• On December 11, 2016 • 

Many of us know how delicious mangoes are!

Basically, mangoes are very nutritious and healthy to eat regularly, where not only just kids but also adults love to eat. These mangoes are only found in the large areas of India and it is said to be the hub of mangoes where huge quantities of mangoes are exported from this country to all the countries.

When we look into mango leaves­ they’re basically like the all other leaves i.e. green in color.
 At first they’re reddish in color and as they grow­ they turn into dark greenish color.

Mango leaves are rich in:
Vitamin A
Vitamin B
Vitamin C
Also rich in flavonoids and phenols
Have powerful antioxidant properties

These were just the qualities of these leaves­ now we’ll understand about the importance of these leaves and the medical impact on the human body.

1. Diabetes

These leaves are rich in tannins called anthocyanidins­ useful for treating diabetes in the early stage.
The method of using these leaves is simple­ first w…