A cyanobacterium containing phycobiliproteins with far-red acclimation was isolated from Pozas Rojas, Cuatro Ciénegas, México. It was named Leptolyngbya CCM 4 after phylogenetic analysis and a description of its morphological characteristics. Leptolyngbya was grown in far-red light. Sucrose-gradient analysis of the pigments revealed two different colored bands of phycobiliproteins. A band at 60% sucrose was a phycocyanin containing phycobilisome; at 35% sucrose, a new type of phycobiliprotein absorbed at 710 nm. SDS-PAGE revealed the presence of two types of core-membrane linkers. Analysis of the hydrophobic pigments extracted from the thylakoid membranes revealed Chl a, d, and f. The ratio of Chl f/a was reversibly changed from 1:12-16 under far-red light to an undetectable concentration of Chl f under white light. Cuatro Ciénegas, a place surrounded by the desert, is a new ecosystem where a cyanobacterium, which grows in farred light, was discovered., C. Gómez-Lojero, L. E. Leyva-Castillo, P. Herrera-Salgado,
J. Barrera-Rojas, E. Ríos-Castro, E. B. Gutiérrez-Cirlos., and Obsahuje bibliografické odkazy
The article traces the role and image of the wood and the tree in the culture of Ancient China as emerging from the transmitted literature of the Warring States period. Although this topic has already been touched upon in some previous studies, such as Mark Elvin's The Retreat of the Elephants, no comprehensive description based on at least nearly exhaustive systematization of respective data available to us in primary sources has been presented yet, especially for trees. In this paper, virtually all recorded modes of approaching the phenomena by the learned men of the Warring States are summarized and supplied with extensive reference to ancient texts. Apart from other issues, it clearly demonstrates that the skeptical stance to ancient Chinese love for nature and to the ecological ethos of traditional Chinese culture is highly justified., Lukáš Zádrapa., and Obsahuje bibliografii
Příspěvek Jany Frankové je ohlédnutím za mezinárodní mezioborovou konferencí, která se uskutečnila v Paříži ve dnech 30. listopadu až 2. prosince 2017., Jana Franková., Rubrika: Konference, and Cizojazyčné resumé není.