CHANGES IN CELL ULTRASTRUCTURE AND ENDOGENOUS ABSCISIC-ACID AND INDOLE-3-ACETIC-ACID CONCENTRATIONS IN FATSIA-JAPONICA LEAVES UNDER POLYETHYLENE GLYCOL-INDUCED WATER-STRESS

被引：24

作者：

LOPEZCARBONELL, M ^{[1
]}

ALEGRE, L ^{[1
]}

VANONCKELEN, H ^{[1
]}

机构：

[1] UNIV INSTELLING ANTWERP, DEPT BIOL, Antwerp, BELGIUM

来源：

PLANT GROWTH REGULATION | 1994年 / 15卷 / 02期

关键词：

CELL ULTRASTRUCTURE; ENDOGENOUS ABSCISIC ACID; FATSIA JAPONICA; INDOLE-3-ACETIC ACID; LEAF WATER POTENTIAL; PEG; SELECTIVE STAINING;

D O I：

10.1007/BF00024106

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Ultrastructural alterations in epidermal and mesophyll cells as well as variations in bulk leaf endogenous BBB and IAA concentrations were studied in PEG-treated plants of Fatsia japonica Decne and Plank. Under stress induced by PEG vesicles containing fibrous material and electron-dense bodies associated with plasma membranes were observed. Cytochemical examination indicated that electron-dense bodies corresponded to lipids and the fibrous material of the vesicles were polysaccharides. Chloroplasts, mitochondria, nuclei and Golgi apparatus also showed modifications. A strong relationship was found between increasing PEG-induced water stress, increasing endogenous ABA and ultrastructural changes. In relation with leaf ontogeny and ABA concentration a higher ABA level was observed in younger than in older leaves. The differences in the endogenous concentrations of indole-3-acetic acid are unclear, except after 7 days of PEG-treatment. The increase in the endogenous abscisic acid concentration could be related with the ultrastructural changes.

引用

页码：165 / 174

页数：10

共 30 条

[11] DIURNAL FLUCTUATIONS OF ENDOGENOUS IAA CONTENT IN ARALIA LEAVES
LOPEZCARBONELL, M
ALEGRE, L
PRINSEN, E
VANONCKELEN, H
[J]. BIOLOGIA PLANTARUM, 1992, 34 (3-4) : 223 - 227
[12] EFFECTS OF WATER-STRESS ON CELLULAR ULTRASTRUCTURE AND ON CONCENTRATIONS OF ENDOGENOUS ABSCISIC-ACID AND INDOLE-3-ACETIC-ACID IN FATSIA-JAPONICA LEAVES
LOPEZCARBONELL, M
ALEGRE, L
VANONCKELEN, H
[J]. PLANT GROWTH REGULATION, 1994, 14 (01) : 29 - 35
[13] LOPEZCARBONELL M, 1992, THESIS U BARCELONA
[14] EVALUATION OF THE WATER POTENTIALS OF SOLUTIONS OF POLYETHYLENE GLYCOL-8000 BOTH IN THE ABSENCE AND PRESENCE OF OTHER SOLUTES
MICHEL, BE
[J]. PLANT PHYSIOLOGY, 1983, 72 (01) : 66 - 70
[15] ENDOSPERM CELL-DIVISION IN MAIZE KERNELS CULTURED AT 3 LEVELS OF WATER POTENTIAL
MYERS, PN
SETTER, TL
MADISON, JT
THOMPSON, JF
[J]. PLANT PHYSIOLOGY, 1992, 99 (03) : 1051 - 1056
[16] NISHIZAWA N, 1984, J ELECTRON MICROSC, V33, P230
[17] NISHIZAWA N, 1981, PLANT CELL PHYSIOL, V22, P933
[18] NISHIZAWA NK, 1989, STRUCTURAL AND FUNCTIONAL RESPONSES TO ENVIRONMENTAL STRESSES : WATER SHORTAGE, P99
[19] ABSCISIC-ACID ACCUMULATION IN LINES OF MAIZE DIFFERING IN DROUGHT RESISTANCE - A COMPARISON OF INTACT AND DETACHED LEAVES
PEKIC, S
QUARRIE, SA
[J]. JOURNAL OF PLANT PHYSIOLOGY, 1987, 127 (3-4) : 203 - 217
[20] POLJAKOFFMAYBER A, 1981, PHYSL BIOCH DROUGHT, P369

← 1 2 3 →