1. Plant Tissues Chapter 26 Jin Hoe Huh March 28, 2005

3. Flowering Plant Life Cycle Double fertilization Meiosis Meiosis microspores Female gametophyte pollination Mitosis without cytoplasmic division Two sperm s enter ovule Diploid Haploid

6. water & minerals sugar SHOOT SYSTEM ROOT SYSTEM Shoot and root systems are interdependent

9. Apical Meristems activity at meristems new cells elongate and start to differentiate into primary tissues procambium  primary vascular tissues protoderm  epidermis Cells that form at apical meristems : ground meristem  ground tissues Lengthen shoots and roots: SAM and RAM

10. Lateral Meristems vascular cambium  secondary vascular tissues periderm  cork cambium thickening Increases girth of older roots and stems Cylindrical arrays of cells

12. collenchyma parenchyma sclerenchyma Morphology of three simple tissue types

20. Monocots and Dicots – same tissues, different features Parallel veins Netlike veins 3 pores 1 pore 4 or 5 floral parts 3 floral parts 1 cotyledon 2 cotyledons Vascular bundles dispersed Vascular bundles in ring

21. Shoot Development ground meristem primary xylem pith procambrium cortex procambrium protoderm shoot apical meristem primary phloem

22. Bud = undeveloped shoot of meristematic tissue Internode Leaves Axillary bud at node Longitudinal section of terminal bud

23. Roots also have meristems

27. Leaf Gross Structure petiole blade axillary bud node blade sheath node DICOT MONOCOT

29. Leaf Structure UPPER EPIDERMIS PALISADE MESOPHYLL SPONGY MESOPHYLL LOWER EPIDERMIS one stoma cuticle O 2 CO 2 xylem phloem

31. Parenchyma Collenchyma

33. Root Systems

36. pericycle phloem xylem root hair endodermis epidermis cortex

39. Secondary Growth

40. Woody Stem periderm (consists of cork, cork cambium, and secondary cortex) secondary phloem BARK HEARTWOOD SAPWOOD vascular cambium