Sap Sap Sap is a fluid transported in xylem cells (vessel elements or tracheids) or phloem sieve tube elements of a plant. These cells transport water and nutrients throughout the plant. Sap is distinct from latex, resin, or cell sap; it is a separate substance, separately produced, and with different components and functions. Saps may be broadly divided into two types: xylem sap and phloem sap. Xylem sap (pronounced ) consists primarily of a watery solution of hormones, mineral elements and other nutrients. Transport of sap in xylem is characterized by movement from the roots toward the leaves. Over the past
Xylosandrus compactus and "Melia azedarach". It is particularly damaging in tree nurseries, killing seedlings and young saplings. A study in Uganda's shaded robusta coffee systems, tree species suppressing "X. compactus" infestation characteristically exuded copious sap regardless of any stress. Therefore, the presence or absence of copious sap exuding from trees upon injury likely differentiates "X. compactus" hosts from non-hosts. In Florida, where "X. compactus" has been introduced, the life cycle is completed in about twenty-eight days. Like other ambrosia beetles, the adult female carries a fungal symbiont, in this case "Fusarium solani". This fungus attacks the xylem tissue of the plant host,