Some like it wet - biological characteristics underpinning tolerance of extreme water stress events in Antarctic bryophytes

Functional Plant Biology : FPB
Jane WasleyMarianne Popp

Abstract

Antarctic bryophyte communities presently tolerate physiological extremes in water availability, surviving both desiccation and submergence events. We investigated the relative ability of three Antarctic moss species to tolerate physiological extremes in water availability and identified physiological, morphological, and biochemical characteristics that assist species performance under such conditions. Tolerance of desiccation and submergence was investigated using chlorophyll fluorescence during a series of field- and laboratory-based water stress events. Turf water retention and degree of natural habitat submergence were determined from gametophyte shoot size and density, and δ13C signatures, respectively. Finally, compounds likely to assist membrane structure and function during desiccation events (fatty acids and soluble carbohydrates) were determined. The results of this study show significant differences in the performance of the three study species under contrasting water stress events. The results indicate that the three study species occupy distinctly different ecological niches with respect to water relations, and provide a physiological explanation for present species distributions. The poor tolerance of submergence ...Continue Reading

References

Jan 1, 1992·Annual Review of Physiology·J H CroweL M Crowe
Jun 11, 2003·The Journal of Experimental Biology·A J Hulbert
Nov 1, 1988·Plant Physiology·K L Koster, A C Leopold
Jul 1, 2005·Functional Plant Biology : FPB·Ian F Wardlaw

❮ Previous
Next ❯

Citations

Dec 30, 2014·Global Change Biology·Jessica Bramley-AlvesSharon A Robinson
Oct 7, 2015·Frontiers in Plant Science·Stephen B PointingWarwick F Vincent
Jan 19, 2017·Global Change Biology·Michael B AshcroftSharon A Robinson
Jul 24, 2018·American Journal of Botany·Sarah M EppleyErin E Shortlidge
Jun 26, 2020·Frontiers in Plant Science·Diana H KingSharon A Robinson
Jun 8, 2010·Plant, Cell & Environment·Thomas LennéMarilyn C Ball
Oct 23, 2014·Global Change Biology·Jessica Royles, Howard Griffiths
Nov 23, 2018·Biological Research·Melinda J WatermanSharon A Robinson
Feb 1, 2014·Functional Plant Biology : FPB·Daniel E StantonMarilyn C Ball
Mar 1, 2009·Functional Plant Biology : FPB·Johanna D TurnbullSharon A Robinson

❮ Previous
Next ❯

Methods Mentioned

BETA
dissecting

Software Mentioned

JMP

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.