1.

Record Nr.

UNINA9910464662303321

Autore

Beer Sven <1949->

Titolo

Photosynthesis in the marine environment / / Sven Beer, Mats Björk, and John Beardall ; cover design by Steve Thompson

Pubbl/distr/stampa

Ames, Iowa : , : Wiley-Blackwell, , 2014

©2014

ISBN

1-118-80344-2

Descrizione fisica

1 online resource (224 p.)

Disciplina

581.7/6

Soggetti

Photosynthesis

Plants - Effect of underwater light on

Aquatic plants - Ecophysiology

Underwater light

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"Free companion website"--Cover.

Nota di bibliografia

Includes bibliographical references at the end of each chapters and index.

Nota di contenuto

Photosynthesis in the Marine Environment; Photosynthesis in theMarine Environment; Contents; About the authors; Contributing authors; Preface; About the companion website; Part I Plants and the Oceans; Introduction; Chapter 1 The evolution of photosynthetic organisms in the oceans; Chapter 2 The different groups of marine plants; 2.1 Cyanobacteria; 2.2 Eukaryotic microalgae; 2.3 Photosymbionts; 2.4 Macroalgae; 2.4.1 The green algae; 2.4.2 The brown algae; 2.4.3 The red algae; 2.5 Seagrasses; Chapter 3 Seawater as a medium for photosynthesis and plant growth; 3.1 Light; 3.2 Inorganic carbon

3.2.1 pH3.3 Other abiotic factors; 3.3.1 Salinity; 3.3.2 Nutrients; 3.3.3 Temperature; 3.3.4 Water velocities; Summary notes of Part I; Part II Mechanisms of Photosynthesis, and Carbon Acquisition in Marine Plants; Introduction to Part II; Chapter 4 Harvesting of light in marine plants: The photosynthetic pigments; 4.1 Chlorophylls; 4.2 Carotenoids; 4.3 Phycobilins; Chapter 5 Light reactions; 5.1 Photochemistry: excitation, de-excitation, energy transfer and primary electron transfer; 5.2 Electron transport; 5.3 ATP formation; 5.4



Alternative pathways of electron flow

Chapter 6 Photosynthetic CO2-fixation and -reduction6.1 The Calvin Cycle; 6.2 CO2-concentrating mechanisms; Chapter 7 Acquisition of carbon in marine plants; 7.1 Cyanobacteria and microalgae; 7.1.1 Cyanobacteria; 7.1.2 Eukaryotic microalgae; 7.2 Photosymbionts; 7.3 Macroalgae; 7.3.1 Use of HCO3; 7.3.2 Mechanisms of HCO3- use; 7.3.3 Rubisco and macroalgal photosynthesis: The need for a CO2 concentrating mechanism; 7.4 Seagrasses; 7.4.1 Use of HCO3-; 7.4.2 Mechanisms of HCO3-use; 7.5 Calcification and photosynthesis; Summary notes of Part II

Chapter 9 Photosynthetic responses, acclimations and adaptations to light9.1 Responses of high and low-light plants to irradiance; 9.2 Light responses of cyanobacteria and microalgae; 9.3 Light effects on photosymbionts; 9.4 Adaptations of Carbon acquisition mechanisms to light; 9.5 Acclimations of seagrasses to high and low irradiances; Chapter 10 Photosynthetic acclimations and adaptations to stress in the intertidal; 10.1 Adaptations of macrophytes to desiccation; 10.1.1 The ever-tolerant Ulva; 10.1.2 The intertidal Fucus; 10.1.3 The extremely tolerant Porphyra

10.1.4 Acclimations of seagrasses to desiccation (or not)

Sommario/riassunto

""Marine photosynthesis provides for at least half of the primary production worldwide..."" Photosynthesis in the Marine Environment constitutes a comprehensive explanation of photosynthetic processes as related to the special environment in which marine plants live. The first part of the book introduces the different photosynthesising organisms of the various marine habitats: the phytoplankton (both cyanobacteria and eukaryotes) in open waters, and macroalgae, marine angiosperms and photosymbiont-containing invertebrates in those benthic environments where there is enough light f



2.

Record Nr.

UNINA9910793247403321

Autore

Pfuntner Laura

Titolo

Urbanism and empire in Roman Sicily / / Laura Pfuntner

Pubbl/distr/stampa

Austin : , : University of Texas Press, , 2019

ISBN

1-4773-1723-6

Edizione

[First edition.]

Descrizione fisica

1 online resource (317 pages)

Disciplina

937/.8

Soggetti

Urbanization - Italy - Sicily - History

Cities and towns - Italy - Sicily - History

Sicily (Italy) Antiquities

Sicily (Italy) History To 800

Rome Territorial expansion

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Urban abandonment in the late Republic and early Principate (CA. 50 BC-AD 50) -- Urban abandonment in the high Empire (CA. AD 50-250) -- The southwestern coast : economic integration, political privilege, and urban survival -- The northeastern coast : civil war and colonization -- Eastern Sicily : from Syracusan to Roman hegemony -- Roman urbanism in Sicily -- New forms of settlement in Roman imperial Sicily.

Sommario/riassunto

Sicily has been the fulcrum of the Mediterranean throughout history. The island’s central geographical position and its status as ancient Rome’s first overseas province make it key to understanding the development of the Roman Empire. Yet Sicily’s crucial role in the empire has been largely overlooked by scholars of classical antiquity, apart from a small number of specialists in its archaeology and material culture. Urbanism and Empire in Roman Sicily offers the first comprehensive English-language overview of the history and archaeology of Roman Sicily since R. J. A. Wilson’s Sicily under the Roman Empire (1990). Laura Pfuntner traces the development of cities and settlement networks in Sicily in order to understand the island’s political, economic, social, and cultural role in Rome’s evolving Mediterranean hegemony. She identifies and examines three main



processes traceable in the archaeological record of settlement in Roman Sicily: urban disintegration, urban adaptation, and the development of alternatives to urban settlement. By expanding the scope of research on Roman Sicily beyond the bounds of the island itself, through comparative analysis of the settlement landscapes of Greece and southern Italy, and by utilizing exciting evidence from recent excavations and surveys, Pfuntner establishes a new empirical foundation for research on Roman Sicily and demonstrates the necessity of including Sicily in broader historical and archaeological studies of the Roman Empire.