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1. In memory of Thomas Turpin Bannister (1930–2018)

Author:
Laws, Edward; Weidemann, Alan; Hoch, George; Bannister, Horatio; Knox, Robert S.; Govindjee,
Source:
Photosynthesis research 2018 v.138 no.2 pp. 129-138
ISSN:
0166-8595
Subject:
algae; biophysics; graduate students; models; photochemistry; photosynthesis; phytoplankton; pigments; primary productivity
Abstract:
... Tom Bannister (1930–2018) was an extraordinary person and a remarkably productive scientist. He began his career studying the basics of photochemistry, biophysics, and biology of photosynthetic pigments and later moved on to primary production of algae. His publications on modeling of primary production rates in aquatic systems are among the most widely cited in the field of phytoplankton ecology. ...
DOI:
10.1007/s11120-018-0582-0

2. Pigment configuration in the light-harvesting protein of the xanthophyte alga Xanthonema debile

Author:
Streckaite, Simona; Gardian, Zdenko; Li, Fei; Pascal, Andrew A.; Litvin, Radek; Robert, Bruno; Llansola-Portoles, Manuel J.
Source:
Photosynthesis research 2018 v.138 no.2 pp. 139-148
ISSN:
0166-8595
Subject:
Raman spectroscopy; algae; carotenoids; chlorophyll; high performance liquid chromatography; light harvesting complex; magnesium; soil; stoichiometry
Abstract:
... The soil chromophyte alga Xanthonema (X.) debile contains only non-carbonyl carotenoids and Chl-a. X. debile has an antenna system denoted Xanthophyte light-harvesting complex (XLH) that contains the carotenoids diadinoxanthin, heteroxanthin, and vaucheriaxanthin. The XLH pigment stoichiometry was calculated by chromatographic techniques and the pigment-binding structure studied by resonance Raman ...
DOI:
10.1007/s11120-018-0557-1

3. Rapid regulation of excitation energy in two pennate diatoms from contrasting light climates

Author:
Derks, Allen K.; Bruce, Doug
Source:
Photosynthesis research 2018 v.138 no.2 pp. 149-165
ISSN:
0166-8595
Subject:
Navicula; Nitzschia; absorption; algae; chlorophyll; climate; dithiothreitol; energy; landscapes; lutein; photochemistry; photosystem II; shorelines; thylakoids
Abstract:
... Non-photochemical quenching (NPQ) is a fast acting photoprotective response to high light stress triggered by over excitation of photosystem II. The mechanism for NPQ in the globally important diatom algae has been principally attributed to a xanthophyll cycle, analogous to the well-described qE quenching of higher plants. This study compared the short-term NPQ responses in two pennate, benthic di ...
DOI:
10.1007/s11120-018-0558-0