scholarly journals Author Correction: Disulfide-compatible phage-assisted continuous evolution in the periplasmic space

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mary S. Morrison ◽  
Tina Wang ◽  
Aditya Raguram ◽  
Colin Hemez ◽  
David R. Liu
Author(s):  
B.K. Ghosh

Periplasm of bacteria is the space outside the permeability barrier of plasma membrane but enclosed by the cell wall. The contents of this special milieu exterior could be regulated by the plasma membrane from the internal, and by the cell wall from the external environment of the cell. Unlike the gram-negative organism, the presence of this space in gram-positive bacteria is still controversial because it cannot be clearly demonstrated. We have shown the importance of some periplasmic bodies in the secretion of penicillinase from Bacillus licheniformis.In negatively stained specimens prepared by a modified technique (Figs. 1 and 2), periplasmic space (PS) contained two kinds of structures: (i) fibrils (F, 100 Å) running perpendicular to the cell wall from the protoplast and (ii) an array of vesicles of various sizes (V), which seem to have evaginated from the protoplast.


Author(s):  
Xie Nianming ◽  
Ding Shaoqing ◽  
Wang Luping ◽  
Yuan Zenglin ◽  
Zhan Guolai ◽  
...  

Perhaps the data about periplasmic enzymes are obtained through biochemical methods but lack of morphological description. We have proved the existence of periplasmic bodies by electron microscope and described their ultrastructures. We hope this report may draw the attention of biochemists and mrophologists to collaborate on researches in periplasmic enzymes or periplasmic bodies with each other.One or more independent bodies may be seen in the periplasmic space between outer and inner membranes of Gram-negative bacteria, which we called periplasmic bodies. The periplasmic bodies have been found in seven species of bacteria at least, including the Pseudomonas aeroginosa. Shigella flexneri, Echerichia coli. Yersinia pestis, Campylobacter jejuni, Proteus mirabilis, Clostridium tetani. Vibrio cholerae and Brucella canis.


2017 ◽  
Vol 6 (12) ◽  
pp. 2326-2338 ◽  
Author(s):  
Shu-De Liu ◽  
Yi-Nan Wu ◽  
Tian-Min Wang ◽  
Chong Zhang ◽  
Xin-Hui Xing

Revue Romane ◽  
2011 ◽  
Vol 46 (2) ◽  
pp. 282-293
Author(s):  
Margareth Hagen

The first chapters of Carlo Collodi’s Pinocchio were printed in 1881, the same year as the publication of the novel I Malavoglia, Giovanni Verga’s masterpiece of verismo. While every critical reader of Verga’s realism has pointed out his particular narrative interpretation of evolution, Collodi’s has novel very seldom been connected to the theories of evolution, even if Darwin’s ideas were highly present in the public debate in Florence during the last decades of the 19th century. The reasons for this silence are primarily to be found in the genre of Pinocchio, in the fact that it is children literature, and therefore primarily related to the narrative mechanisms of the fairy tales and pedagogical literature. Focusing on Pinocchio, the article discusses to which degree Darwinism can be traced in Collodi’s literature for children, and questions if the continuous metamorphoses of Pinocchio can be read also in connection with the naturalist conception of the literary characters as unstable, in continuous evolution, and not only as part of the mechanisms of fairy tales and mythological narratives.


Author(s):  
F. Giovannelli ◽  
L. Sabau-Graziati

In this paper we will provide several examples that marked the continuous evolution on the knowledge of the physics of our Universe, updating our recent review (Giovannelli & Sabau-Graziati, 2019a). We want to emphasize that all the objects in our Universe are interdependent on each other, and that the classifications - that are usually made to simplify problems - are artificial, since nature evolves in all its manifestations continuously.


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