CHLOROPHYLL-A AUTOAGGREGATION IN WATER-RICH REGION

被引：30

作者：

AGOSTIANO, A ^{[1
]}

DELLAMONICA, M ^{[1
]}

PALAZZO, G ^{[1
]}

TROTTA, M ^{[1
]}

机构：

[1] CNR,CTR STUDI CHIMICOFIS INTERAZ LUCE MAT,I-70126 BARI,ITALY

来源：

BIOPHYSICAL CHEMISTRY | 1993年 / 47卷 / 02期

关键词：

CHLOROPHYLL-A; AUTOAGGREGATION; WATER RICH REGION; CIRCULAR DICHROISM; FLUORESCENCE;

D O I：

10.1016/0301-4622(93)85036-H

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Visible absorption and fluorescence spectroscopy, togheter with circular dichroism were employed to investigate the equilibrating chlorophyll a species formed in solution at different water/acetonitrile content and different pigment concentrations. Changes in chlorophyll a auto-aggregation occurring in water containing acetonitrile in the range 0.1-33% (v/v) were observed and related to the bulk properties of the medium. A 713 nm absorbing species, occurring in solution for water concentrations exceeding 99% was characterized. The influence of the ionic strength of the solution was also subject of the present study, together with the time evolution of the different aggregates.

引用

页码：193 / 202

页数：10

共 34 条

[1] POLAROGRAPHIC AND WAVELENGTH-SELECTED FLUORESCENCE EXCITATION STUDIES OF CHLOROPHYLL-A AGGREGATION IN WATER CONTAINING TRACE AMOUNTS OF ACETONE [J].

AGOSTIANO, A ;

CASELLI, M ;

DELLAMONICA, M ;

FONG, FK .

BIOELECTROCHEMISTRY AND BIOENERGETICS, 1990, 23 (03) :301-310

[2] DIPOLE-DIPOLE TRANSFER BETWEEN ACETONE SOLVATES OF CHLOROPHYLL-A AND CHLOROPHYLL-A DIHYDRATE DIMERS IN WATER ACETONE MIXTURES - A MODEL FOR P680 SENSITIZED EXCITATION [J].

AGOSTIANO, A ;

BUTCHER, KA ;

SHOWELL, MS ;

GOTCH, AJ ;

FONG, FK .

CHEMICAL PHYSICS LETTERS, 1987, 137 (01) :37-41

[3] FORMATION OF CHLOROPHYLL-A PHOTOREACTIVE DIMERS IN ALCOHOLIC MIXTURES - SPECTROSCOPIC AND ELECTROCHEMICAL STUDY [J].

AGOSTIANO, A ;

COSMA, P ;

DELLAMONICA, M .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1991, 58 (02) :201-213

[4] SPECTROSCOPIC AND ELECTROCHEMICAL CHARACTERIZATION OF CHLOROPHYLL-A IN DIFFERENT WATER + ORGANIC-SOLVENT MIXTURES [J].

AGOSTIANO, A ;

COSMA, P ;

DELLAMONICA, M .

BIOELECTROCHEMISTRY AND BIOENERGETICS, 1990, 23 (03) :311-324

[5] CHLOROPHYLL-CHLOROPHYLL AND CHLOROPHYLL-WATER INTERACTIONS IN SOLID-STATE [J].

BALLSCHMITER, K ;

KATZ, JJ .

BIOCHIMICA ET BIOPHYSICA ACTA, 1972, 256 (02) :307-+

[6] COVALENTLY BOUND DIMERIC DERIVATIVE OF PYROCHLOROPHYLLIDE A - POSSIBLE MODEL FOR REACTION CENTER CHLOROPHYLL [J].

BOXER, SG ;

CLOSS, GL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1976, 98 (17) :5406-5408

[7] MODEL REACTIONS IN PHOTOSYNTHESIS [J].

BOXER, SG .

BIOCHIMICA ET BIOPHYSICA ACTA, 1983, 726 (04) :265-292

[8] STOICHIOMETRIC DETERMINATION OF CHLOROPHYLL-A - WATER AGGREGATES AND PHOTOSYNTHESIS - SYMBIOTIC ROLES OF MAGNESIUM ATOM AND RING-V CYCLOPENTANONE GROUP IN STRUCTURAL AND PHOTO-CHEMICAL PROPERTIES OF CHLOROPHYLL-A MONOHYDRATE AND DIHYDRATE [J].

BRACE, JG ;

FONG, FK ;

KARWEIK, DH ;

KOESTER, VJ ;

SHEPARD, A ;

WINOGRAD, N .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1978, 100 (16) :5203-5207

[9] CRYSTAL AND MOLECULAR-STRUCTURE AND ABSOLUTE-CONFIGURATION OF ETHYL CHLOROPHYLLIDE ALPHA DIHYDRATE - MODEL FOR DIFFERENT SPECTRAL FORMS OF CHLOROPHYLL-ALPHA [J].

CHOW, HC ;

SERLIN, R ;

STROUSE, CE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (25) :7230-7237

[10] NUCLEAR MAGNETIC RESONANCE SPECTRA AND MOLECULAR ASSOCIATION OF CHLOROPHYLLS A AND B, METHYL CHLOROPHYLLIDES, PHEOPHYTINS, AND METHYL PHEOPHORBIDES [J].

CLOSS, GL ;

STRAIN, HH ;

THOMAS, MR ;

KATZ, JJ ;

PENNINGTON, FC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1963, 85 (23) :3809-+

← 1 2 3 4 →