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Analysis of Indole-3-acetic Acid (IAA) Production in Klebsiella by LC-MS/MS and the Salkowski Method

Authors: Shraddha Gang, Sheetal Sharma, Meenu Saraf, Martin Buck and Jörg Schumacher, date: 05/05/2019, view: 17739, Q&A: 1

[Abstract] Many rhizobacteria isolated from plant rhizosphere produce various phytohormones in the form of secondary metabolites, the most common of which is Indole-3-acetic acid (IAA). Here, we detail analytical protocols of IAA detection and quantification, in vitro and in situ, as recently applied to Klebsiella SGM 81, a ...

Quantification of Salicylic Acid (SA) and SA-glucosides in Arabidopsis thaliana

Authors: Valérie Allasia, Benoit Industri, Michel Ponchet, Michaël Quentin, Bruno Favery and Harald Keller, date: 05/20/2018, view: 10293, Q&A: 4

[Abstract] Homeostasis between the cytoplasmic plant hormone salicylic acid (SA) and its’ inactive, vacuolar storage forms, SA-2-O-β-D-glucoside (SAG) and SA-β-D-Glucose Ester (SGE), regulates the fine-tuning of defense responses to biotrophic pathogens in Arabidopsis thaliana. This protocol describes a simplified, optimized procedure to ...

Rice Lamina Joint Inclination Assay

Authors: Hsing-Yi Li, Hsin-Mei Wang and Seonghoe Jang, date: 07/20/2017, view: 10592, Q&A: 0

[Abstract] Brassinosteroids (BRs) promote rice lamina inclination. Recently, we showed that OsBUL1 knockout mutant rice (osbul1) is defective in brassinosteroid signaling (Jang et al., 2017). To show that lamina joint inclination of osbul1 is less-sensitive than WT to exogenous brassinolide (BL) treatment in the lamina ...

Extraction and Measurement of Abscisic Acid in a Unicellular Red Alga Cyanidioschyzon merolae

Authors: Yuki Kobayashi and Kan Tanaka, date: 12/05/2016, view: 10133, Q&A: 0

[Abstract] Abscisic acid (ABA) has been known as a phytohormone of land plants, which is synthesized in response to abiotic stresses and induces various physiological responses, but is also found from eukaryotic algae. Recently, we reported that a unicellular red alga Cyanidioschyzon merolae produced ABA, which prevented cell growth and enhanced ...

Quantification of Ethylene Production in Tomato Leaves Infected by Xanthomonas euvesicatoria

Authors: Jung-Gun Kim, William Stork and Mary Beth Mudgett, date: 02/05/2016, view: 9740, Q&A: 0

[Abstract] Ethylene is a gaseous plant hormone controlling fruit ripening, flower opening, leaf senescence as well as abscission, and disease symptom development. Ethylene plays a critical role in the bacterial pathogen Xanthomonas euvesicatoria (X. euvesicatoria)-elicited symptom development in tomato. This protocol describes the ...

Indole Derivative Feeding Test and Detection of TRP and Indole derivatives by Thin Layer Chromatography

Authors: Magdalena Hilbert, Lars M. Voll, Jörg Hofmann and Alga Zuccaro, date: 06/20/2013, view: 9951, Q&A: 0

[Abstract] The mutualistic root endophyte Piriformospora indica colonizes a wide range of plants and the colonization of root cells by this fungus is very often associated with beneficial effects to its host, such as growth promotion and increased biotic and abiotic stress tolerance. These traits could be based on general mechanisms and signaling ...

Growth Assay and Detection of TRP and Indole Derivatives in Piriformospora indica Culture Supernatant by LC-MS/MS

Authors: Magdalena Hilbert, Lars M. Voll, Jörg Hofmann and Alga Zuccaro, date: 06/20/2013, view: 11720, Q&A: 0

[Abstract] The mutualistic root endophyte Piriformospora indica colonizes a wide range of plants and the colonization of root cells by this fungus is very often associated with beneficial effects to its host, such as growth promotion and increased biotic and abiotic stress tolerance. These traits may be based on general mechanisms and signaling ...

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