PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34764230-9 2021 PEP1 dramatically disrupts the symplastic movement of free green fluorescence protein (GFP) from phloem sieve elements to neighboring cells in the root meristem, leading to the deposition of a high level of callose between cells. callose 207-214 precursor of peptide 1 Arabidopsis thaliana 0-4