|Table of Contents|

Cytology Study on Leaf-variegation Character and Mechanism of Dracaena fragrans(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年16期
Page:
35-38
Research Field:
Publishing date:

Info

Title:
Cytology Study on Leaf-variegation Character and Mechanism of Dracaena fragrans
Author(s):
LIU He-ping1HE Ye-hua2
1.Yangjiang Vocational and Technical College,Yangjiang,Guangdong 529566;
2.College of Horticulture,South China Agriculture University,Guangzhou,Guangdong 510642
Keywords:
Dracaena fragransleaf-variegationchimerachloroplast
PACS:
S 682.36
DOI:
-
Abstract:
Taking Dracaena fragran 3 different varieties as test materials,from the angle of cytology the characteristics and mechanism of Dracaena fragran leaves were studied.The results showed that the stem apex of D.fragrans was consistent with tunica-corpus theory.It was composed of two layers of neatly arranged tunica cell and several layers of irregular corpus cell.Degradation of chloroplast in yellow cell of D.fragrans cv.massangeana was relatively light,round in shape,relatively integrity structure,distorted grana,total chlorophyl content was fairly low.Therefore,the appearance was light green.There was almost no complete chloroplast structure in the yellow cell of D.fragranscv.lindenii.The chloroplast was destroyed very seriously,grana degraded,and the structure of lamellar membrane degraded,so it appeared to be yellow.

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Last Update: 2014-08-28