subject | relation | object |
---|---|---|
phloem development | is_a | phloem or xylem histogenesis (GO:0010087) |
subject | relation | object |
---|---|---|
sieve cell differentiation (GO:0048756) | BFO:0000050 | phloem development |
companion cell differentiation (GO:0048758) | BFO:0000050 | phloem development |