Plant Defense Response to Abiotic Stress via Abscisic Acid Signaling Pathway

2017 ◽  
Vol 29 (1) ◽  
Keyword(s):  
Abscisic Acid ◽  
Abiotic Stress ◽  
Plant Defense ◽  
Signaling Pathway ◽  
Defense Response ◽  
Plant Defense Response ◽  
Abscisic Acid Signaling

scholarly journals Deletion of the SACPD-C Locus Alters the Symbiotic Relationship Between Bradyrhizobium japonicum USDA110 and Soybean, Resulting in Elicitation of Plant Defense Response and Nodulation Defects

2016 ◽  
Vol 29 (11) ◽  
pp. 862-877 ◽  
Author(s):  
Hari B. Krishnan ◽  
Alaa A. Alaswad ◽  
Nathan W. Oehrle ◽  
Jason D. Gillman
Keyword(s):  
Plant Defense ◽  
Defense Response ◽  
Acyl Carrier Protein ◽  
Defense Responses ◽  
Nodule Development ◽  
Plant Defense Response ◽  
Wild Type ◽  
Two Dimensional Gel Electrophoresis ◽  
Symbiotic Associations ◽  
Soybean Nodule

Legumes form symbiotic associations with soil-dwelling bacteria collectively called rhizobia. This association results in the formation of nodules, unique plant-derived organs, within which the rhizobia are housed. Rhizobia-encoded nitrogenase facilitates the conversion of atmospheric nitrogen into ammonia, which is utilized by the plants for its growth and development. Fatty acids have been shown to play an important role in root nodule symbiosis. In this study, we have investigated the role of stearoyl-acyl carrier protein desaturase isoform C (SACPD-C), a soybean enzyme that catalyzes the conversion of stearic acid into oleic acid, which is expressed in developing seeds and in nitrogen-fixing nodules. In-depth cytological investigation of nodule development in sacpd-c mutant lines M25 and MM106 revealed gross anatomical alteration in the sacpd-c mutants. Transmission electron microscopy observations revealed ultrastructural alterations in the sacpd-c mutants that are typically associated with plant defense response to pathogens. In nodules of two sacpd-c mutants, the combined jasmonic acid (JA) species (JA and the isoleucine conjugate of JA) were found to be reduced and 12-oxophytodienoic acid (OPDA) levels were significantly higher relative to wild-type lines. Salicylic acid levels were not significantly different between genotypes, which is divergent from previous studies of sacpd mutant studies on vegetative tissues. Soybean nodule phytohormone profiles were very divergent from those of roots, and root profiles were found to be almost identical between mutant and wild-type genotypes. The activities of antioxidant enzymes, ascorbate peroxidase, and superoxide dismutase were also found to be higher in nodules of sacpd-c mutants. PR-1 gene expression was extremely elevated in M25 and MM106, while the expression of nitrogenase was significantly reduced in these sacpd-c mutants, compared with the parent ‘Bay’. Two-dimensional gel electrophoresis and matrix-assisted laser desorption-ionization time of flight mass spectrometry analyses confirmed sacpd-c mutants also accumulated higher amounts of pathogenesis-related proteins in the nodules. Our study establishes a major role for SACPD-C activity as essential for proper maintenance of soybean nodule morphology and physiology and indicates that OPDA signaling is likely to be involved in attenuation of nodule biotic defense responses.

scholarly journals An Evolutionarily Conserved Abscisic Acid Signaling Pathway Regulates Dormancy in the Liverwort Marchantia polymorpha

2018 ◽  
Vol 28 (22) ◽  
pp. 3691-3699.e3 ◽  
Author(s):  
D. Magnus Eklund ◽  
Masakazu Kanei ◽  
Eduardo Flores-Sandoval ◽  
Kimitsune Ishizaki ◽  
Ryuichi Nishihama ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Signaling Pathway ◽  
Marchantia Polymorpha ◽  
Abscisic Acid Signaling ◽  
Evolutionarily Conserved

Alkaloid Role in Plant Defense Response to Growth and Stress

2019 ◽  
pp. 145-158
Author(s):  
Abeer H. Ali ◽  
Mostafa Abdelrahman ◽  
Magdi A. El-Sayed
Keyword(s):  
Plant Defense ◽  
Defense Response ◽  
Plant Defense Response

The Cotton GhRac6 Gene Encoding a Plant ROP/RAC Protein Improves the Plant Defense Response to Aphid Feeding

2018 ◽  
Vol 36 (5-6) ◽  
pp. 888-896
Author(s):  
Zhen Yang ◽  
Jianjian Liu ◽  
Liang Luo ◽  
Sui Ye ◽  
Yazhen Yang ◽  
...  
Keyword(s):  
Plant Defense ◽  
Defense Response ◽  
Plant Defense Response ◽  
Gene Encoding ◽  
Aphid Feeding

scholarly journals Connections between Sphingosine Kinase and Phospholipase D in the Abscisic Acid Signaling Pathway inArabidopsis

2012 ◽  
Vol 287 (11) ◽  
pp. 8286-8296 ◽  
Author(s):  
Liang Guo ◽  
Girish Mishra ◽  
Jonathan E. Markham ◽  
Maoyin Li ◽  
Amanda Tawfall ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Signaling Pathway ◽  
Phospholipase D ◽  
Sphingosine Kinase ◽  
Abscisic Acid Signaling

scholarly journals Epl1, the major secreted protein of Hypocrea atroviridis on glucose, is a member of a strongly conserved protein family comprising plant defense response elicitors

FEBS Journal ◽  
2006 ◽  
Vol 273 (18) ◽  
pp. 4346-4359 ◽  
Author(s):  
Verena Seidl ◽  
Martina Marchetti ◽  
Reingard Schandl ◽  
Gunter Allmaier ◽  
Christian P. Kubicek
Keyword(s):  
Plant Defense ◽  
Defense Response ◽  
Protein Family ◽  
Plant Defense Response ◽  
Secreted Protein

Plant Hormones and Plant Defense Response Against Pathogens

2021 ◽  
pp. 1-28
Author(s):  
Virginia Borrelli ◽  
Alessandra Lanubile ◽  
Adriano Marocco
Keyword(s):  
Plant Defense ◽  
Plant Hormones ◽  
Defense Response ◽  
Plant Defense Response
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