TY - GEN AU - Hellmers,H AU - Machlis,L TI - Exogenous Substrate Utilization and Fermentation by the Pollen of Pinus ponderosa SN - 0032-0889 PY - 2006///0531 N1 - Publication Type: Journal Article UR - https://doi.org/10.1104/pp.31.4.284 ER -