Variation in chloroplast small heat-shock protein function is a major determinant of variation in thermotolerance of photosynthetic electron transport among ecotypes of Chenopodium album

Functional Plant Biology : FPB
Deepak BaruaS A Heckathorn

Abstract

Chloroplast small (low-molecular-weight) heat-shock proteins (csHsps) can protect photosynthetic electron transport (Pet), and quantitative variation in csHsps is correlated with thermotolerance of net photosynthesis and Photosystem II. However, the functional (i.e. protective) consequence of natural variation in csHsps is unknown. To investigate this, we used an in vitro assay to determine the contribution of csHsps to the tolerance of Pet to high temperatures in five ecotypes of Chenopodium album collected from habitats ranging from cool to warm, and we partitioned total Pet thermotolerance into basal and induced Pet components (without and with a pre-heat treatment, respectively, to induce csHsps). The ecotypes varied in total Pet thermotolerance and this was correlated with habitat temperature. Variation in total Pet thermotolerance was associated primarily with variation in induced Pet thermotolerance, and not with basal Pet thermotolerance. Variation in induced Pet was highly correlated with csHsp protection of Pet. Variation in csHsp function was associated with variation in csHsp content among ecotypes. These results are the first to demonstrate the direct functional consequences for natural variation in Hsps in plants,...Continue Reading

Citations

Aug 25, 2020·Biochemistry and Molecular Biology Education : a Bimonthly Publication of the International Union of Biochemistry and Molecular Biology·Henry V JakubowskiCassidy R Terrell
Jul 24, 2008·Photosynthesis Research·Suleyman I AllakhverdievPrasanna Mohanty
Jul 1, 2009·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Sabarinath SundaramRenu Khanna-Chopra
Aug 27, 2016·Global Change Biology·Odhran S O'sullivanOwen K Atkin
Apr 18, 2020·Frontiers in Plant Science·Shanshan HuCheng Zhu
Sep 12, 2014·Plant, Cell & Environment·Luísa C CarvalhoSara Amâncio
Mar 14, 2021·Plant Cell Reports·Peter PoórM Iqbal R Khan
Oct 17, 2021·The New Phytologist·Lasse TarvainenJohan Uddling

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.