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Bulletin of Botanical Research ›› 2009, Vol. 29 ›› Issue (1): 58-60.doi: 10.7525/j.issn.1673-5102.2009.01.013

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The Morphology and Process Changes of Peltate Glandular hairs in Alnus mandshurica Leaf Epidermis

ZHU Jun-Yi;LIU Xiu-Yan;LIANG Yu;   

  1. 1.Department of Biology,Tonghua Normal University,Tonghua 134002 2.College of Forest,Beihua University,Jilin 132013
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-20 Published:2009-01-20
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Abstract: Using scanning electron microscopy techniques to observe the leaves surface of Alnus mandshurica and find it far axial epidermis with peltate glandular hairs. It made up of two-cells,four stem cells and 20~25 head-cells,with the accumulation of secretion material,cells rupture,finally disappear. Theree is no peltate glandular hairs far axial epidermis, in young leawes only has stoma distribution. The cross section of A. mandshurica leaves showed it belongs to bifacial leaf, cells of far axial epidermis with peltate glandular hairs connect with leaf vein vascular tissue, the author consider this peltate glandular hairs shoule belong to “Peltate glandular hairs”, and suggest that the nouns of “Glandular scales”,“Peltate gland”,“Peltate scale”,“Peltate glandular hairs” should be normalized.The process of shields-glandular in A. mandshurica leaf epidermis and the component of secretion material need to be further studied.

Key words: Alnus mandshurica, leaf epidermis, peltate glandular hairs

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