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Cork cambium is the protective tissue of a stem. What mechanism does it use to protect the stem? Deposits of water in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens. Deposits of minerals in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens. Deposits of oils or waxes in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens.
1 The vascular cambium is involved in producing secondary xylem (wood) and secondary phloem. 2  Secondary phloem is the secondary growth tissue that conducts food that the plant makes from the leaves to the rest of the plant.3  The cork cambium is involved in producing the tough, thick covering of a stem and root. Secondary xylem is the wood of a tree trunk. 2  The annual rings are created by alternating bands of summer wood cells and spring wood cells. 3  The summer wood cells are smaller in diameter, due to less available water, while the spring cells are larger in diameter due to rapid growth from more abundant water.