A5013264129- Algal biology and biofuel production
- Photosynthetic Processes and Mechanisms
- Marine and coastal ecosystems
- Biocrusts and Microbial Ecology
- Antioxidant Activity and Oxidative Stress
- Light effects on plants
- Photoreceptor and optogenetics research
- ATP Synthase and ATPases Research
University of Verona
2015-2023
Significance Photosystems catalyze photosynthetic light absorption and energy conversion, yet require photoprotection mechanisms for avoiding oxidative damage from excess absorption. The major short-term mechanism is thermal dissipation of the excitation absorbed in excess, called nonphotochemical quenching (NPQ). Although NPQ photosystem II (PSII) excitons has been extensively investigated, we focus here on PSI model organism green algae: Chlamydomonas reinhardtii . By analyzing several...
Chlorella vulgaris is a fast-growing fresh-water microalga cultivated on the industrial scale for applications ranging from food to biofuel production. To advance our understanding of its biology and establish genetics tools biotechnological manipulation, we sequenced nuclear organelle genomes 211/11P by combining next generation sequencing optical mapping isolated DNA molecules. This hybrid approach allowed us assemble genome in 14 pseudo-molecules with an N50 2.8 Mb 98.9% scaffolded...
In eukaryotic autotrophs, photosystems are composed of a core moiety, hosting charge separation and electron transport reactions, an antenna system, enhancing light harvesting photoprotection. Chlamydomonas reinhardtii, the major PSII is heterogeneous trimeric complex made up LHCBM1–LHCBM9 subunits. Despite high similarity, specific functions have been reported for several members including LHCBM1, 2, 7, 9. this work, we analyzed function LHCBM4 LHCBM6 gene products in vitro by synthesizing...
Abstract Astaxanthin is a ketocarotenoid produced by photosynthetic microalgae. It pigment of high industrial interest in acquaculture, cosmetics, and nutraceutics due to its strong antioxidant power. Haematococcus pluvialis , fresh-water microalga, accumulates levels astaxanthin upon oxidative stress, reaching values up 5% per dry weight. H. oil droplets the cytoplasm, while chloroplast volume reduced. In this work, we investigate biochemical spectroscopic properties binding complexes...
Summary The xanthophyll cycle is the metabolic process by which carotenoid violaxanthin de‐epoxidated to zeaxanthin, a with crucial photoprotective role in higher plants and mosses. of zeaxanthin still unclear green algae, peculiar de‐epoxidating enzyme was found model organism Chlamydomonas reinhardtii . Here, we investigated molecular details functions case Chlorella vulgaris , one algae most considered for industrial cultivation, where resistance high light stress prerequisite sustainable...
Abstract Acclimation to different light regimes is at the basis of survival for photosynthetic organisms, regardless their evolutionary origin. Previous research efforts largely focused on acclimation events occurring level apparatus and often highlighted species-specific mechanisms. Here, we investigated consequences irradiances in Chlorella vulgaris, a green alga that one most promising species industrial application, focusing both mitochondrial activities. Moreover, proteomic analysis...
Acclimation to different light regimes is at the base of survival for photosynthetic organisms, regardless their evolutionary origin. Previous research efforts largely focused on acclimation events occurring level apparatus and often highlighted species-specific mechanisms. Here, we investigated consequences irradiances in Chlorella vulgaris , a green alga that one most promising species industrial application, focusing both mitochondrial activities. Moreover, proteomic analysis cells...