DEVELOPMENTAL-STUDY OF THE EPIDERMIS OF YOUNG ROOTS OF ZEA-MAYS-L

被引:39
作者
CLARKE, KJ [1 ]
MCCULLY, ME [1 ]
MIKI, NK [1 ]
机构
[1] CARLETON UNIV, DEPT BIOL, OTTAWA K1S 5B6, ONTARIO, CANADA
关键词
D O I
10.1007/BF01676562
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In the apical meristems of main and young lateral roots of corn the uniseriate epidermis is clearly continuous with the most distal cell tier of the quiescent centre. These cells are characterized by the presence on their outer periclinal walls of material which forms the thin root cap junction layer over the apical pole and which thickens appreciably over the flanks of the meristem to form a distinctive extracellular deposit on the young epidermal cells. This material is polysaccharide in nature as indicated by strong periodic acid Schiff's positivity but its autofluorescence also suggests the presence of phenolic compounds. During their development the epidermal cells undergo marked shape change from periclinally flattened, polygonal at the root pole, through columnar on the meristem flank to tabular in the root hair zone. The mucigel thins markedly as cells become tabular but initiation of a root hair is characterized by deposition of polysaccharide on the inside of the periclinal wall where the hair will develop. © 1979 Springer-Verlag.
引用
收藏
页码:283 / 309
页数:27
相关论文
共 47 条
[21]   STUDIES ON ROOTS .3. AN ANALYSIS OF ROOT GROWTH IN PHLEUM PRATENSE USING PHOTOMICROGRAPHIC RECORDS [J].
GOODWIN, RH ;
AVERS, CJ .
AMERICAN JOURNAL OF BOTANY, 1956, 43 (07) :479-487
[22]   SUITABILITY OF OSMOTIC SHOCK PROCEDURE FOR ANALYSIS OF MEMBRANE-TRANSPORT IN ROOT-TIPS OF ZEA-MAYS-L [J].
GRUNWALDT, G ;
EHWALD, R ;
GORING, H .
JOURNAL OF EXPERIMENTAL BOTANY, 1978, 29 (108) :97-106
[23]  
Guttenberg H., 1968, PRIMARE BAU ANGIOSPE
[24]  
GUTTENBERG HV, 1954, FLORA, V141, P298
[25]   USE OF AN OPTICAL BRIGHTENER IN STUDY OF PLANT STRUCTURE [J].
HUGHES, J ;
MCCULLY, ME .
STAIN TECHNOLOGY, 1975, 50 (05) :319-329
[26]  
JUNIPER B E, 1970, Planta (Heidelberg), V95, P314, DOI 10.1007/BF00384703
[27]   FURTHER STUDIES OF HISTOLOGY OF LATERAL ROOT DEVELOPMENT IN ZEA-MAYS [J].
KARAS, I ;
MCCULLY, ME .
PROTOPLASMA, 1973, 77 (2-3) :243-269
[28]   LOCALIZED INCORPORATION OF H-3-L-FUCOSE INTO CELL-WALL POLYSACCHARIDES OF CAP AND EPIDERMIS OF CORN ROOTS - AUTORADIOGRAPHIC AND BIOSYNTHETIC STUDIES [J].
KIRBY, EG ;
ROBERTS, RM .
PLANTA, 1971, 99 (03) :211-&
[29]   A MUCILAGINOUS ROOT SHEATH IN ERICACEAE [J].
LEISER, AT .
AMERICAN JOURNAL OF BOTANY, 1968, 55 (03) :391-&
[30]   PRIMARY ROOT EPIDERMIS OF PANICUM-VIRGATUM L .1. ONTOGENY AND FINE-STRUCTURE OF EPIDERMAL CYTOPLASMIC INCLUSIONS [J].
LEWIS, RF ;
CROTTY, WJ .
AMERICAN JOURNAL OF BOTANY, 1976, 63 (09) :1280-1288