Distinct C₄ sub-types and C₃ bundle sheath isolation in the Paniceae grasses.

ABSTRACT: In C₄ plants, the enzymatic machinery underpinning photosynthesis can vary, with, for example, three distinct C₄ acid decarboxylases being used to release CO₂ in the vicinity of RuBisCO. For decades, these decarboxylases have been used to classify C₄ species into three biochemical sub-types. However, more recently, the notion that C₄ species mix and match C₄ acid decarboxylases has increased in popularity, and as a consequence, the validity of specific biochemical sub-types has been questioned. Using five species from the grass tribe Paniceae, we show that, although in some species transcripts and enzymes involved in multiple C₄ acid decarboxylases accumulate, in others, transcript abundance and enzyme activity is

SUBMITTER: Washburn JD 

PROVIDER: S-EPMC8711749 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature