Jasmonic acid-dependent and -independent wound signal transduction pathways are differentially regulated by Ca2+/calmodulin in Arabidopsis thaliana

1998 ◽  
Vol 258 (4) ◽  
pp. 412-419 ◽  
Author(s):  
J. León ◽  
E. Rojo ◽  
E. Titarenko ◽  
J. J. Sánchez-Serrano
Keyword(s):  
Signal Transduction ◽  
Arabidopsis Thaliana ◽  
Jasmonic Acid ◽  
Signal Transduction Pathways ◽  
Wound Signal

Jasmonic acid in wound signal transduction pathways

1997 ◽  
Vol 101 (4) ◽  
pp. 740-745 ◽  
Author(s):  
Shigemi Seo ◽  
Hiroshi Sano ◽  
Yuko Ohashi
Keyword(s):  
Signal Transduction ◽  
Jasmonic Acid ◽  
Signal Transduction Pathways ◽  
Wound Signal

Jasmonic acid in wound signal transduction pathways

1997 ◽  
Vol 101 (4) ◽  
pp. 740-745 ◽  
Author(s):  
Shigemi Seo ◽  
Hiroshi Sano ◽  
Yuko Ohashi
Keyword(s):  
Signal Transduction ◽  
Jasmonic Acid ◽  
Signal Transduction Pathways ◽  
Wound Signal

scholarly journals Bioeffectors as biotechnological tools of the innate immunity: signal transduction pathways involved

2020 ◽  
Author(s):  
Helena Martin-Rivilla ◽  
Ana Garcia-Villaraco ◽  
Beatriz Ramos-Solano ◽  
Francisco Javier Gutierrez-Mañero ◽  
Jose Antonio Lucas
Keyword(s):  
Signal Transduction ◽  
Salicylic Acid ◽  
Immune System ◽  
Jasmonic Acid ◽  
Ethyl Acetate ◽  
Differential Expression ◽  
Signal Transduction Pathways ◽  
Marker Genes ◽  
Nicotiana Glauca ◽  
Plant Immune System

Abstract Background Unravel the complex functioning of plant immune system is essential and something in which great effort is being made since its performance is not entirely clear yet. Knowing plant immune system allows strengthening it and therefore developing a more efficient and environmentally friendly agriculture, avoiding the massive use of agrochemicals and making plants the main protagonist in the defense against pathogens.The use of beneficial rhizobacteria (bioeffectors) and its derived metabolic elicitors are biotechnological alternatives in plant immune system elicitation. The present work aimed to check the ability of 25 bacterial strains selected from a group of 175, isolated from the rhizosphere of Nicotiana glauca, to trigger the innate immune system of Arabidopsis thaliana seedlings against the pathogen Pseudomonas syringae DC3000. A study of the signal transduction pathways involved in plant response was made.Results The selected 25 strains were chosen because of their biochemical traits and avoiding phylogenetic redundancy. The 5 strains, of the previous 25, more effective in the prevention of pathogen infection were used to elucidate signal transduction pathways involved in the plant immune response, studying the differential expression of Salicylic acid and Jasmonic acid/Ethylene pathway marker genes. Some strains stimulated the two pathways with no inhibitory effects between them, while others stimulated either one or the other. Metabolic elicitors of two strains, chosen for their taxonomic affiliation and for the results obtained in the differential expression of the genes studied, were extracted using n-hexane, ethyl acetate and n-butanol, and their capacity to mimic bacterial effect to trigger the immune system of the plant was studied. N-hexane and ethyl acetate were the most effective fractions against the pathogen in both strains, achieving similar protection rates although gene expression responses were different from that obtained by the bacteria. Conclusions Beneficial rhizobacteria and its metabolic elicitors have great potential as biotechnological tools since they are able to improve plant immune system through the triggering of either Salicylic acid or Jasmonic acid/Ethylene pathway or both pathways simultaneously. These results open a huge amount of biotechnological possibilities to develop biological products for agriculture in different situations and plant species.

scholarly journals Jasmonic Acid Signaling Pathway in Response to Abiotic Stresses in Plants

2020 ◽  
Vol 21 (2) ◽  
pp. 621 ◽  
Author(s):  
Md. Sarafat Ali ◽  
Kwang-Hyun Baek
Keyword(s):  
Signal Transduction ◽  
Jasmonic Acid ◽  
Abiotic Stresses ◽  
Gene Networks ◽  
Light Stress ◽  
Freezing Stress ◽  
Signal Transduction Pathways ◽  
Plant Responses ◽  
Physiological Processes ◽  
Informational Cues

Plants as immovable organisms sense the stressors in their environment and respond to them by means of dedicated stress response pathways. In response to stress, jasmonates (jasmonic acid, its precursors and derivatives), a class of polyunsaturated fatty acid-derived phytohormones, play crucial roles in several biotic and abiotic stresses. As the major immunity hormone, jasmonates participate in numerous signal transduction pathways, including those of gene networks, regulatory proteins, signaling intermediates, and proteins, enzymes, and molecules that act to protect cells from the toxic effects of abiotic stresses. As cellular hubs for integrating informational cues from the environment, jasmonates play significant roles in alleviating salt stress, drought stress, heavy metal toxicity, micronutrient toxicity, freezing stress, ozone stress, CO2 stress, and light stress. Besides these, jasmonates are involved in several developmental and physiological processes throughout the plant life. In this review, we discuss the biosynthesis and signal transduction pathways of the JAs and the roles of these molecules in the plant responses to abiotic stresses.

scholarly journals Subcellular Localization of 14-3-3 Regulatory Proteins in Arabidopsis thaliana

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 614e-614
Author(s):  
Elizabeth A. Bihn ◽  
Robert J. Ferl
Keyword(s):  
Signal Transduction ◽  
Arabidopsis Thaliana ◽  
Environmental Factors ◽  
Subcellular Localization ◽  
Fungal Pathogen ◽  
Regulatory Proteins ◽  
Signal Transduction Pathways ◽  
Transgenic Expression ◽  
Subsequent Research ◽  
Wide Range

The 14-3-3 proteins were originally characterized in mammalian brains and were thought to be specifically involved in neurotransmitter production. Subsequent research has revealed that this family of proteins is ubiquitous in eucaryotic cells and is involved in a wide range of regulatory and signal transduction pathways. For instance, some 14-3-3 proteins have been associated with the signal transduction in response to fungal pathogen attack and to other environmental factors that affect transcription. In Arabidopsis, 10 isoforms of 14-3-3 have been isolated, raising the possibility that diversity of function may be governed by cellular and subcellular specificities of expression and localization. We have investigated the localization of certain 14-3-3 isoforms through transgenic expression of epitope-tagged 14-3-3s.

Tobacco MAP Kinase: A Possible Mediator in Wound Signal Transduction Pathways

Science ◽  
1995 ◽  
Vol 270 (5244) ◽  
pp. 1988-1992 ◽  
Author(s):  
S. Seo ◽  
M. Okamoto ◽  
H. Seto ◽  
K. Ishizuka ◽  
H. Sano ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Map Kinase ◽  
Signal Transduction Pathways ◽  
Wound Signal ◽  
Kinase A
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