The anatomy of abscission zones is diverse among grass species.

ABSTRACT: PREMISE:Abscission zones (AZ) are specialized cell layers that separate plant parts at the organ junction upon developmental or environmental signals. Fruit or seed abscission has been well studied in model species because of its crucial role for seed dispersal. Previous work showed that AZ localization differs among species of Poaceae and that AZ formation is histologically and genetically distinct in three distantly related grass species, refuting the idea of a broadly conserved module. However, whether AZ structure is consistent within subfamilies is unknown. METHODS:Eleven species were selected from six subfamilies of Poaceae, and their AZ was investigated using paraffin-embedded, stained material. Observations were added from the literature for an additional six species. Data were rec

SUBMITTER: Yu Y 

PROVIDER: S-EPMC7217018 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature