Autotrophy, though common among plants, isn’t the only way plants make a living. Some plants have lost all photosynthetic abilities and instead rely on symbiotic relationships with fungi. Even some leafy green plants that appear fully autotrophic meet a portion of their energy demands via partnerships with fungi.
These plant adaptations fall into the category of mycoheterotrophy. Here, Hynson et al. synthesise the largest data set available on the ecophysiologies of mycoheterotrophs in the families Ericaceae and Orchidaceae. They find that enrichment patterns of carbon and nitrogen stable isotope composition, together with nitrogen concentrations reveal plant trophic status and familial identity.
Jatropha curcas could be an oil crop with major biofuel potential, but the breeding germplasm has little variation. Botanists have found that there is genetic potential in previously overlooked non-toxic jatropha, but it needs conservation.
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