Contrasting response mechanisms to root-zone salinity in three co-occurring Mediterranean woody evergreens: a physiological and biochemical study

Functional Plant Biology : FPB
M TattiniRossano Massai

Abstract

The present study investigated the extent to which physiological and biochemical traits varied because of root-zone salinity in three Mediterranean evergreens differing greatly in their strategies of salt allocation at an organismal level: the 'salt-excluders', Olea europaea L. and Phillyrea latifolia L. (both Oleaceae), and Pistacia lentiscus L., which, instead, largely uses Na+ and Cl- for osmotic adjustment. Both Oleaceae spp. underwent severe leaf dehydration and reduced net photosynthesis and whole-plant growth to a significantly greater degree than did P. lentiscus. Osmotic adjustment in Oleaceae mostly resulted from soluble carbohydrates, which, in turn, likely feedback regulated net photosynthesis. Salt stress reduced the actual efficiency of PSII photochemistry (ΦPSII) and enhanced the concentration of de-epoxided violaxanthin-cycle pigments in O. europaea and P. latifolia. Phenylpropanoid metabolism was upregulated by salt stress to a markedly greater degree in O. europaea and P. latifolia than in P. lentiscus. In contrast, species-specific variations in leaf lipid peroxidation were not observed in response to salinity stress. The results suggest that the species-specific ability to manage the allocation of potentiall...Continue Reading

References

Oct 28, 1998·Proceedings of the National Academy of Sciences of the United States of America·B J PogsonD DellaPenna
Jul 21, 1999·Proceedings of the National Academy of Sciences of the United States of America·M Havaux, K K Niyogi
Apr 12, 2001·Plant Physiology·P MüllerK K Niyogi
Jul 18, 2001·Journal of Experimental Botany·M J Paul, C H Foyer
Feb 14, 2002·Plant, Cell & Environment·R. Munns
Sep 12, 2002·Plant Physiology·B. ShenH. J. Bohnert
Feb 1, 1996·Plant Physiology·J. R. Evans, S. Von Caemmerer
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Paul M. HasegawaHans J. Bohnert
Aug 17, 2005·The New Phytologist·Rana Munns
Mar 3, 2006·Journal of Experimental Botany·Rana MunnsAndré Läuchli
Mar 6, 2007·The New Phytologist·Giovanni AgatiMassimiliano Tattini
Nov 13, 2007·Plant, Cell & Environment·Jaume FlexasHipólito Medrano
Dec 1, 2004·Functional Plant Biology : FPB·Shazia HusainRana Munns
Mar 1, 2003·Functional Plant Biology : FPB·Manuela M ChavesJoão S Pereira
Jan 1, 2003·Functional Plant Biology : FPB·Jose A HernándezManuel F García-Legaz

❮ Previous
Next ❯

Citations


❮ 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.