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Plant Anatomy An Applied Approach (Lecture ppt) Ch03_phloem

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

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    Ch. 3.2 Ch. 3.2 The structure of xylem and phloem
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Vascular bundle or tissue Xylem Phloem http://www.kensbiorefs.com/pltphys.html
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    Secondary Phloem p. 41~45 Fig. 3.16~3.17
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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
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http://www.apsnet.org/education/illustratedglossary/PhotosN-R/ray.jpg Phloem Cambium Bark p.245 Periderm Rhizodermis p.270
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Rhizodermis p.270
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Secondary phloem Secondary phloem
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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
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xylem phloem pith cambium cambium Secondary grow Pinus C.S.
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