scholarly journals Molecular Characterization of cDNA Encoding Oxygen Evolving Enhancer Protein 1 Increased by Salt Treatment in the Mangrove Bruguiera gymnorrhiza

2000 ◽  
Vol 41 (11) ◽  
pp. 1279-1285 ◽  
Author(s):  
Koichi Sugihara ◽  
Nobutaka Hanagata ◽  
Zvy Dubinsky ◽  
Sigeyuki Baba ◽  
Isao Karube
Author(s):  
Kathleen M. Marr ◽  
Mary K. Lyon

Photosystem II (PSII) is different from all other reaction centers in that it splits water to evolve oxygen and hydrogen ions. This unique ability to evolve oxygen is partly due to three oxygen evolving polypeptides (OEPs) associated with the PSII complex. Freeze etching on grana derived insideout membranes revealed that the OEPs contribute to the observed tetrameric nature of the PSIl particle; when the OEPs are removed, a distinct dimer emerges. Thus, the surface of the PSII complex changes dramatically upon removal of these polypeptides. The atomic force microscope (AFM) is ideal for examining surface topography. The instrument provides a topographical view of individual PSII complexes, giving relatively high resolution three-dimensional information without image averaging techniques. In addition, the use of a fluid cell allows a biologically active sample to be maintained under fully hydrated and physiologically buffered conditions. The OEPs associated with PSII may be sequentially removed, thereby changing the surface of the complex by one polypeptide at a time.


2006 ◽  
Vol 175 (4S) ◽  
pp. 467-467
Author(s):  
Victor K. Lin ◽  
Shih-Ya Wang ◽  
Claus G. Roehrbom

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
F Taura ◽  
T Luetrakul ◽  
Y Shoyama

2012 ◽  
Vol 224 (03) ◽  
Author(s):  
A Streltsov ◽  
S Emmrich ◽  
F Engeland ◽  
JH Klusmann

2018 ◽  
Author(s):  
MY Deng ◽  
D Sturm ◽  
E Pfaff ◽  
GP Balasubrama ◽  
J Schittenhelm ◽  
...  

2006 ◽  
Vol 37 (06) ◽  
Author(s):  
L Schlotawa ◽  
T Dierks ◽  
K von Figura ◽  
J Gärtner

2020 ◽  
Vol 141 ◽  
pp. 39-46
Author(s):  
MD Dorjievna Batueva ◽  
X Pan ◽  
J Zhang ◽  
X Liu ◽  
W Wei ◽  
...  

In the present study, we provide supplementary data for Myxidium cf. rhodei Léger, 1905 based on morphological, histological and molecular characterization. M. cf. rhodei was observed in the kidneys of 918 out of 942 (97%) roach Rutilus rutilus (Linnaeus, 1758). Myxospores of M. cf. rhodei were fusiform with pointed ends, measuring 12.7 ± 0.1 SD (11.8-13.4) µm in length and 4.6 ± 0.1 (3.8-5.4) µm in width. Two similar pear-shaped polar capsules were positioned at either ends of the longitudinal axis of the myxospore: each of these capsules measured 4.0 ± 0.1 (3.1-4.7) µm in length and 2.8 ± 0.1 (2.0-4.0) µm in width. Polar filaments were coiled into 4 to 5 turns. Approximately 18-20 longitudinal straight ridges were observed on the myxospore surface. The suture line was straight and distinctive, running near the middle of the valves. Histologically, the plasmodia of the present species were found in the Bowman’s capsules, and rarely in the interstitium of the host. Phylogenetic analysis revealed that M. cf. rhodei was sister to M. anatidum in the Myxidium clade including most Myxidium species from freshwater hosts.


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