Hybridization in endophyte symbionts alters host response to moisture and nutrient treatments.

Microbial Ecology
Cyd E HamiltonStanley H Faeth

Abstract

When a host organism is infected by a symbiont, the resulting symbiotum has a phenotype distinct from uninfected hosts. Genotypic interactions between the partners may increase phenotypic variation of the host at the population level. Neotyphodium is an asexual, vertically transmitted endophytic symbiont of grasses often existing in hybrid form. Hybridization in Neotyphodium rapidly increases the symbiotum's genomic content and is likely to increase the phenotypic variation of the host. This phenotypic variation is predicted to enhance host performance, especially in stressful environments. We tested this hypothesis by comparing the growth, survival, and resource allocation of hybrid and nonhybrid infected host plants exposed to controlled variation in soil moisture and nutrients. Infection by a hybrid endophyte did not fit our predictions of comparatively higher root and total biomass production under low moisture/low nutrient treatments. Regardless of whether the host was infected by a hybrid or nonhybrid endophyte, both produced significantly higher root/total biomass when both nutrient and moisture were high compared to limited nutrient/moisture treatments. However, infection by hybrid Neotyphodium did result in significant...Continue Reading

References

Mar 29, 1994·Proceedings of the National Academy of Sciences of the United States of America·H F TsaiC L Schardl
May 13, 1999·Proceedings of the National Academy of Sciences of the United States of America·C M BrasierJ M Duncan
Aug 9, 2003·Science·Loren H RiesebergChristian Lexer
Nov 25, 2003·Molecular Ecology·C L Schardl, K D Craven
Mar 2, 2005·Molecular Phylogenetics and Evolution·Agustina GentileChristopher L Schardl
Aug 24, 2005·Proceedings of the National Academy of Sciences of the United States of America·Keith ClayJennifer A Rudgers
Aug 1, 1972·Proceedings of the National Academy of Sciences of the United States of America·J L Hamrick, R W Allard
May 17, 2006·Trends in Ecology & Evolution·Ole Seehausen
Aug 8, 2006·Trends in Plant Science·Kari SaikkonenStanley H Faeth
Apr 11, 2008·Ecology Letters·A Randall HughesMark Vellend
Aug 19, 2008·The American Naturalist·Ian R Sanders
Mar 18, 2009·Microbial Ecology·Cyd E HamiltonThomas E Dowling
Feb 1, 1993·Ecological Applications : a Publication of the Ecological Society of America·John D AberPaul Steudler
Sep 1, 1966·Evolution; International Journal of Organic Evolution·R C Lewontin, L C Birch
Sep 1, 2001·The New Phytologist·Manuela GiovannettiMarco Paolo Nuti

❮ Previous
Next ❯

Citations

Jun 8, 2013·Toxins·Christopher L SchardlAdrian Leuchtmann
Nov 7, 2015·Plant Molecular Biology·Kari SaikkonenChristopher L Schardl
Jul 16, 2013·Current Opinion in Plant Biology·Christopher L SchardlPatrick J Calie
Aug 30, 2013·Critical Reviews in Biotechnology·Abdul Latif KhanIn-Jung Lee

❮ 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.