1. Plant Tissues and Organs

2. Fig. 38.6

3. Fig. 38.4

4. Figure 35.21 Modular construction of a shoot

5. Basic Plant Morphology TISSUES- a group of cells functioning together in some specialized activity MERISTEMS- a mass of self-perpetuating cells, which are not yet committed to developing into a specialized cell type –Terminal meristems- ends of stems, branches and roots –Axillary meristems- base of leaves, branches –Lateral meristems are parallel to sides of plant parts and increase girth.

6. Meristem types Primary –Apical Meristems Secondary –Vascular cambium –Cork Cambium

7. Flowering plants have 3 basic tissue types Dermal –Cover surface of plant –Protection Ground Vascular –Conducting tissue

8. Dermal Epidermis –epidermal cells Periderm –cork cells

9. Fig. 38.12a

10. Fig. 38.12b

11. Fig. 38.12c

12. Vascular Tissue Xylem –Mostly to conduct water and nutrients –E.g., roots to shoots Phloem –Mostly to conduct sugars, amino acids, etc. –E.g., leaves to roots or flowers

13. Fig. 38.13a

14. Fig. 4.6

15. Fig. 4.9

16. Fig. 38.13b

17. Fig. 38.14a

18. Fig. 38.14b

19. Vegetative Organs Roots Stems Leaves

20. Function of roots Anchor the plant Absorb water and minerals from soil Storage

21. Longitudinal section of roots Root cap Zone of cell division Zone of cell elongation Zone of maturation

22. Cross section of root Vascular bundle (Stele) = contains xylem and phloem Cortex Epidermis Root hairs –Absorb water and minerals

23. Fig. 38.15

24. Fig. 38.21

25. Function of Stems support leaves to maximize light absorption part of conduit for transport of water, minerals, and organic solutes storage

26. Fig. 38.25a

27. Fig. 38.25b

28. Woody dicots Discrete vascular bundles replaced by continuous rings of xylem Each ring is xylem produced during one growing season Vascular cambium

29. Fig. 38.7a

30. Fig. 38.7b

31. Stems: Secondary growth Vascular tissue, (xylem) makes up the bulk of the stem Form tree rings

32. Fig. 38.23

33. Fig. 38.28a

34. Fig. 38.28b

35. Fig. 38.28c

36. Function of leaves Main photosynthetic structure

37. Leaf parts Blade Petiole Pair of stipules

38. Fig. 38.34

39. Fig. 38.8

40. Fig. 38.33

41. Fig. 38.30

42. Fig. 38.35

43. Fig. 39.1

44. Fig. 39.5

45. Figure 35.8a Modified leaves: Tendrils of pea plant

46. Figure 35.8b Modified leaves: Cacti spines

47. Figure 35.8c Modified leaves: Succulent leaves for storing water

48. Figure 35.8d Modified leaves: Brightly-colored leaves to attract pollinators

49. Figure 35.x1 Lithops

50. Comparison of monocots & dicots Monocotyledon –grasses –lilies, tulips –trees: palm dicotyledon –roses, asters –grapes, beans –trees: oak, maple,

51. http://www.emeraldashborer.info/index.cfm

53. Emerald Ash Borer Emerald ash borer (EAB), Agrilus planipennis Fairmaire, is an exotic beetle that was discovered in southeastern Michigan near Detroit in the summer of 2002. The adult beetles nibble on ash foliage but cause little damage. The larvae (the immature stage) feed on the inner bark of ash trees, disrupting the tree's ability to transport water and nutrients. Emerald ash borer probably arrived in the United States on solid wood packing material carried in cargo ships or airplanes originating in its native Asia. Emerald ash borer is also established in Windsor, Ontario, was found in Ohio in 2003 and northern Indiana in 2004. Since its discovery, EAB has: *killed more than 10 million trees *cost 10s of millions of $

54. What to know about EAB: It attacks only ash trees (Fraxinus spp.).ash trees (Fraxinus spp.) Adult Beetles are metallic green and about ½-inch long. Adults leave a D-shaped exit hole in the bark when they emerge in spring.D-shaped exit hole in the bark Woodpeckers like EAB larvae; heavy woodpecker damage on ash trees may be a sign of infestation.EAB larvae Firewood cannot be moved in many areas of Michigan, Ohio and Indiana because of the EAB quarantine ( Ohio, Indiana, Michigan)EAB quarantine OhioIndianaMichigan It probably came from Asia in wood packing material.Asia