One indispensable fruit in a healthy diet is papaya. Unfortunately,
the dieters fruit has become expensive due to its limited supply
when the culprit, papaya ringspot virus (PRSV) attacked the
papaya plantations in Cavite, Batangas and Laguna many years
ago. It is even observed that the virus is already seen in papaya
farms in Mindanao where the Davao Solo is grown.
Before the deadly virus infects and wipes out all our papaya
plantations, the biotech community has already acted. Encouraged
by the success of Hawaii who was able to develop a resistant
papaya to the ringspot virus of Hawaiian strain, biotech scientists
joined their counterparts in Southeast Asia to adopt the technology
for their own papayas. These papayas will be tested for resistance
against local virus strains.
Last year, Pierriden Perez, a Filipino molecular biologist
spent a year at Malaysia's MARDI Biotechnology Centre's lab
to develop our own special papayas that are resistant to PRSV.
He had to go to Malaysia to undertake the research because under
the Philippine biosafety laws, a permit has to be secured for
every new type of research work. The permit granted by the national
Committee on Biosafety of the Philippines was only for gene
gun transformation while Perez's works will use agrobacterium-mediated
transformation. (Transformation is the technical term
used to describe the incorporation of a gene into a host organism.)
Anticipating the long bureaucratic process for the granting
of permit, Perez decided to bring his work to Malaysia to jumpstart
the process since MARDI scientists are already developing their
won transgenic papayas.
At Dr. Vilasini Pilai's lab in MARDI, Perez simply adapted
Dr. Pilai's transformation protocol to the Filipino Davao Solo
and the Filipino strain of the virus.
His hard work reaped results when in January this year, Perez
returned home with 200 transgenic papaya plantlets ready for
testing in the greenhouse. This special facility called BL2
located inside the compound of Institute of Plant Breeding (IPB)
in Laguna was inaugurated in simple ceremonies last June 5.