[www.isaaa.org]
Genetically modified sugarcane that produces more sucrose has been developed
by scientists from Instituto de Biologia, Universidade Estadual de Campinas
in
<[www.isaaa.org]
s/download/Facts%20and%20Trends%20-%20Brazil.pdf> Brazil.

To investigate how ethylene works in sugarcane, Camila Cunha and colleagues
sprayed sugarcane plants with ethephon (growth regulator) or
aminoethoxyvinylglycine (AVG), a ripening inhibitor before maturation. They
measured the sucrose concentrations in the leaves and stems of sugarcane at
the onset of ripening. Results showed that plants sprayed with ethephon had
60 percent more sucrose while those treated with AVG had 42 percent lower
sucrose. The findings led the scientists to pinpoint the
[www.isaaa.org] genes
involved in the reaction of ethylene during ripening and those that regulate
sucrose metabolism and accumulation.

With the results of the study, the researchers proposed a molecular model of
how ethylene reacts with other hormones, which can lead to the development
of most productive sugarcane varieties.

[www.nature.com]



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