1.

Record Nr.

UNINA990003841410403321

Autore

Accornero, Aris <1931- >

Titolo

Era il secolo del lavoro / Aris Accornero

Pubbl/distr/stampa

Bologna : il Mulino, 2000

ISBN

88-15-07406-6

Edizione

[n. ed.]

Descrizione fisica

210 p. ; 20 cm

Collana

Contemporanea ; 114

Disciplina

306.36

331

Locazione

BFS

Collocazione

306.36 ACC 3

Lingua di pubblicazione

Italiano

Formato

Materiale a stampa

Livello bibliografico

Monografia



2.

Record Nr.

UNISALENTO991001463679707536

Autore

Vorenberg, Michael

Titolo

The emancipation proclamation : a brief history with documents / Michael Vorenberg

Pubbl/distr/stampa

Boston : Bedford/St. Martin's, c2010

ISBN

9780312435813

Descrizione fisica

XVI, 172 p. : ill. ; 21 cm

Collana

The Bedford series in history and culture

Disciplina

973.714

Soggetti

Schiavi - Emancipazione - Stati Uniti d'America - Storia

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Contiene riferimenti bibliografici. Indice



3.

Record Nr.

UNINA9910557401903321

Autore

Imhoff Johannes F

Titolo

Advances in the Biology of Phototrophic Bacteria

Pubbl/distr/stampa

Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2021

Descrizione fisica

1 online resource (274 p.)

Soggetti

Research and information: general

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Sommario/riassunto

The application of genomic, transcriptomic, and proteomic analyses brings new dimensions to our understanding of the biology of phototrophic bacteria. Comparing gene sequences of photosynthetic reaction center proteins and a key enzyme of bacteriochlorophyll biosynthesis from more than 150 genomes demonstrates the ancient roots of phototrophic bacteria. The presence and phylogeny of biosynthetic pathways of the compatible solutes ectoine and glycine betaine define groups of marine and halophilic phototrophic bacteria. The wide range of ecological niches conquered during evolution is demonstrated by the adaptation of cyanobacterial genera Scytonema, Tolypothrix, and Nostoc to different temperature ranges and the adaptation of  Heliorestis species to alkaline habitats. Differences between phototrophic purple bacteria from marine and freshwater habitats are reflected in the preference for sulfidic and non-sulfidic niches. Also, a high proportion of siderophore producers was found among isolates from freshwater sources opposed to those from salty habitats . The primary colonization of carbonate rocks by a group of novel endolithic cyanobacteria and the following successions were studied over 9 months. The genomic characterization of the aerobic Dinoroseobacter strain AAP5, the strictly anaerobic and syntrophic Prosthecochloris ethylica, and the strictly anaerobic Heliorestis convoluta is reported. Significant differences in relation to oxygen are reflected in oxygen production by some species, oxygen tolerance over



a wide range of concentrations, and the use of oxygen for energy generation or a strictly anaerobic lifestyle. Relations to oxygen are highlighted in papers on photooxidative stress, regulation of iron-sulfur cluster formation, and interactions of redox regulators. In situ metatranscriptomic and proteomic studies demonstrate the high metabolic flexibility of Chloroflexus aggregans in a hot spring microbial mat and show its adaptation to the changing conditions over day and night periods by a well-coordinated regulation of key metabolic processes for both phototrophic and chemotrophic growth.