n.韧皮部(由筛管等将叶制造的糖分输送到各部位的植物组织)

The phloem is the main transport system in plants, carrying sugars produced in the leaves to other parts of the plant.
植物的韧皮部是主要的运输系统，将叶片产生的糖分输送到植物的其他部位。
Phloem sieve tubes are responsible for long-distance transport of water and sugars within the plant.
韧皮部筛管负责植物体内长距离的水分和糖分运输。
The cambium layer lies between the xylem and phloem, producing new cells that maintain the growth of the plant.
木质部和韧皮部之间的形成层产生新细胞，维持植物的生长。
In response to injury, the plant may produce a callus, a protective tissue composed of modified phloem cells.
当植物受到伤害时，可能会形成愈伤组织，由改造过的韧皮部细胞构成的保护性组织。
The phloem parenchyma stores food reserves and provides structural support in the plant's stem.
韧皮部薄壁组织储存食物储备，并在植物茎中提供结构支撑。
During photosynthesis, the phloem transports the resulting glucose from the leaves to the rest of the plant for energy production.
在光合作用过程中，韧皮部将产生的葡萄糖从叶子输送到植物的其他部分供能。
The damaged phloem in a tree can be observed as a brown, discolored area, revealing a lack of proper nutrient transport.
树木中受损的韧皮部通常表现为棕色斑块，显示营养物质传输的不正常。
Phloem fibers are strong, flexible, and provide tensile strength to the plant's stem and branches.
韧皮纤维坚韧而有弹性，为植物的茎和枝条提供拉伸强度。
Some insects, like aphids, feed directly on the phloem, causing significant damage to the plant.
有些昆虫如蚜虫直接以韧皮部为食，对植物造成重大损害。
Scientists study the complex interactions between xylem and phloem, known as the 'vascular cambium', to better understand plant growth and development.
科学家研究木质部和韧皮部之间的复杂交互作用，即“维管形成层”，以更好地理解植物的生长和发展。