植物组织笔记文本文档(国外英文资料).doc

植物组织笔记文本文档(国外英文资料) The second chapter, plant organization A key： The difference between organizational concepts and different organizational types; The characteristics of meristem, mature tissue, complex tissue, tissue system and their relationship. Difficult point: The types of vascular bundles and the types of vascular bundles; the composition, characteristics and spatial arrangement of different vascular bundles. Basic requirement: Familiar with the concept of plant organization, organization, classification and structural characteristics of various tissues. To find out the distribution of various tissues in plants. Learning method： The functions of various plant tissues are understood in terms of their structural features because of their structural and functional adaptation. Summarize and compare, compare the different types of each type of organization with comparative methods, such as the comparison of thick angle organizations and thick wall organizations...... First, the concept and type of organization 1: tissue, in a plant, cells of the same origin (a cell or a group of cells having the same ability to divide), divide, grow, and differentiate into cells. Tissue separable: Simple tissue: a type of cell composition; Complex tissue: many types of cells. 2. types of plant tissue There are two main types of tissue types, namely meristem and mature tissue. Meristem: primary meristem Primary meristem (primary epidermis, basal meristem, forming layer) Secondary meristem (form and cork cambium) Or apical meristem, lateral meristem, and intermediate meristem Mature organizations: conservation organizations Basic tissue (absorption tissue, assimilation tissue, storage tissue, ventilation tissue, transfer tissue) Mechanical tissue: thick angle tissue Thick walled tissue: fibers (phloem fibers, wood fibers), stone cells Duct tissue: duct, Guan Bao Sieve tube and cell The secretion of exocrine tissue: tissue (glandular nectary, drainage device) Endocrine and secretory