Differential role of MAX2 and strigolactones in pathogen, ozone, and stomatal responses

Plant Direct
Maria KalliolaMikael Brosché

Abstract

Strigolactones are a group of phytohormones that control developmental processes including shoot branching and various plant-environment interactions in plants. We previously showed that the strigolactone perception mutant more axillary branches 2 (max2) has increased susceptibility to plant pathogenic bacteria. Here we show that both strigolactone biosynthesis (max3 and max4) and perception mutants (max2 and dwarf14) are significantly more sensitive to Pseudomonas syringae DC3000. Moreover, in response to P. syringae infection, high levels of SA accumulated in max2 and this mutant was ozone sensitive. Further analysis of gene expression revealed no major role for strigolactone in regulation of defense gene expression. In contrast, guard cell function was clearly impaired in max2 and depending on the assay used, also in max3, max4, and d14 mutants. We analyzed stomatal responses to stimuli that cause stomatal closure. While the response to abscisic acid (ABA) was not impaired in any of the mutants, the response to darkness and high CO2 was impaired in max2 and d14-1 mutants, and to CO2 also in strigolactone synthesis (max3, max4) mutants. To position the role of MAX2 in the guard cell signaling network, max2 was crossed with mu...Continue Reading

References

Jun 1, 1992·The Plant Cell·S UknesJ Ryals
Mar 5, 2002·Nature·Tsuneaki AsaiJen Sheen
Aug 13, 2002·The Plant Cell·Miguel González-GuzmánPedro L Rodríguez
Jan 7, 2003·Plant & Cell Physiology·Riichiro YoshidaKazuo Shinozaki
Aug 18, 2005·Environmental Microbiology·Wei E HuangAndrew S Whiteley
Mar 21, 2006·Current Biology : CB·Tom BennettOttoline Leyser
Sep 29, 2006·Current Opinion in Plant Biology·Esther LechnerPascal Genschik
Mar 10, 2007·The Plant Journal : for Cell and Molecular Biology·Petra StirnbergH M Ottoline Leyser
Mar 5, 2008·Plant Physiology·Annemart Koornneef, Corné M J Pieterse
Jun 4, 2008·Plant, Cell & Environment·Kirk OvermyerJaakko Kangasjärvi
Aug 12, 2008·Nature·Mikihisa UmeharaShinjiro Yamaguchi
Aug 12, 2008·Nature·Victoria Gomez-RoldanSoizic F Rochange
Feb 10, 2009·Plant Molecular Biology·Francisca BlancoLoreto Holuigue
Apr 21, 2009·Nature Chemical Biology·Corné M J PieterseSaskia C M Van Wees
Jul 31, 2009·Plant Physiology·Alice HaywardOttoline Leyser
Nov 10, 2009·Bioscience, Biotechnology, and Biochemistry·Kiyoshi MashiguchiTadao Asami
Feb 5, 2010·The Plant Journal : for Cell and Molecular Biology·Triin VahisaluHannes Kollist
Oct 6, 2010·Plant Physiology·Charles Goulet, Harry J Klee
Oct 26, 2010·Journal of Visualized Experiments : JoVE·Reejana Chitrakar, Maeli Melotto
May 9, 2012·Annual Review of Cell and Developmental Biology·Corné M J PieterseSaskia C M Van Wees
Feb 5, 2013·Annual Review of Plant Biology·Zheng Qing Fu, Xinnian Dong
Apr 25, 2013·Proceedings of the National Academy of Sciences of the United States of America·Yongxia GuoJoseph P Noel
Nov 8, 2013·Plant Physiology·Qingyun BuEnamul Huq
Jan 1, 2014·Proceedings of the National Academy of Sciences of the United States of America·Chien Van HaLam-Son Phan Tran
Jan 15, 2014·Plant, Cell & Environment·Julia P Vainonen, Jaakko Kangasjärvi
Mar 13, 2014·The Plant Journal : for Cell and Molecular Biology·Tanya WaldieOttoline Leyser
Jan 27, 2015·Annual Review of Plant Biology·Salim Al-Babili, Harro J Bouwmeester
Jul 3, 2015·Journal of Experimental Botany·Elisabeth StesDanny Vereecke
Oct 21, 2015·Trends in Plant Science·Cawas B EngineerJulian I Schroeder

❮ Previous
Next ❯

Citations

Apr 2, 2021·Plant Physiology·David C Nelson
Apr 29, 2021·The New Phytologist·Francois F BarbierChristine A Beveridge

❮ Previous
Next ❯

Methods Mentioned

BETA
ubiquitination
PCR
biosensor

Software Mentioned

R Core Team
ImageJ
ggplot2
R
Statistica

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.