Laura is a science news writer, covering a wide variety of subjects, but she is particularly fascinated by all things aquatic, paleontology, nanotechnology, and exploring how science influences daily life. Laura is a proud former resident of the New Jersey shore, a competitive swimmer, and a fierce defender of the Oxford comma.
ArticleBody:The bright bananas dotting your fruit bowl are in some serious trouble. A popular type of banana is facing extinction from a fungal pathogen. The disease Fusarium wilt of banana blocks the flow of nutrients to the fruit and makes it wilt. During the 1950s, the pathogen wiped out commercial banana crops and made one species–Gros Michel bananas–functionally extinct. But not all is lost for this colorful fruit.
Viljoen Part of this virulence comes down to its genome and the ways it can change. According to Ma, each Fusarium oxysporum genome can be divided into two parts–a core genome and an accessory genome. The core genome does all of the main housekeeping functions of keeping the genome going. An accessory genome is then free to vary from strain to strain and can handle specialized functions–including the ability to infect a specific plant.
Zhang et al. The team still doesn’t know how this gas specifically contributes to disease infestation in Cavendish banana. However, they were able to determine that the virulence of Foc TR4 was greatly reduced if the two genes that control nitric oxide production were eliminated.
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