Plant Anatomy An Applied Approach (Lecture ppt) Ch03_phloem

Plant Anatomy An Applied Approach (Lecture ppt) Ch03_phloem...

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Unformatted text preview: Ch. 3.2 Ch. 3.2 The structure of xylem and phloem Vascular bundle or tissue Xylem Phloem http://www.kensbiorefs.com/pltphys.html Secondary Phloem p. 41~45 Fig. 3.16~3.17 Phloem Complex tissue Primary phloem procambium Protophloem Metaphloem Secondary phloem cambium an closed vascular bundle 1 = sclerenchyma bundle sheath; 2 = crushed protophloem; 3 = sieve tube of metaphloem; 4 = metaphloem companion cell; 5 = metaxylem vessel; 6 = protoxylem vessel; 7 = protoxylem lacuna http://www.apsnet.org/education/illustratedglossary/PhotosN-R/ray.jpg Phloem Cambium Bark p.245 Periderm Rhizodermis p.270 Rhizodermis p.270 Secondary phloem Secondary phloem Gymnosperm phloem Sieve cells In pteridophyte and gymnosperm Long and narrow (small) With sieve area Albuminous cell (Ray sieve tube) In pteridophyte and gymnosperm Similar with companion cell Origin: same as parenchyma cell Parenchyma cells p. 65, Fig. 5.5 p. 42 xylem phloem pith cambium cambium Secondary grow Pinus C.S....
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This note was uploaded on 12/27/2011 for the course LSCI 103 taught by Professor K.y.liao during the Fall '11 term at National Cheng Kung University.

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Plant Anatomy An Applied Approach (Lecture ppt) Ch03_phloem...

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