Increase Plant defenses by secondary metabolites
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The Elicitation Effect of Pathogenic Fungi on Trichodermin ...

The Elicitation Effect of Pathogenic Fungi on Trichodermin ... | Increase Plant defenses by secondary metabolites | Scoop.it
In recent years, the production of pharmaceutically important secondary metabolites has been effectively increased by the addition of fungal elicitors, such as mycelia, carbohydrate fragments, proteins, oligosaccharides, or secretions derived from...
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Rescooped by Satish Tekale from Rhizobium Research
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Welcome to Rhizobium Research!

I really didn't know what to expect when I started playing with this web site. I tried a few different names before settling on Rhizobium Research (note the typo in the URL, late night, tired eyes). The site represents literature that I find interesting, papers that I think I should have read, and papers that I plan to read in the near future. It turns out that other people have similar, or overlapping interests (usually doesn't happen locally). My searches are relatively simple. If I have missed something you think should be posted, please feel free to suggest it so that it can be posted. If you have a comments, please keep them constructive and/or positive. If you are an author of a paper that has been posted and want to leave a comment, I can see how this can lead to some interesting discussions. The long and short, I hope you enjoy the site. I hope that it works to build an on-line community of people with similar interests, so please let other people know of this site. I have been encouraged by early comments that I have received so I will try to keep this site current.

Ivan


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Muhammad Afridi's comment, September 20, 2013 10:41 AM
well done
Chang Fu Tian's comment, March 24, 2014 10:20 PM
Very helpful.
Rescooped by Satish Tekale from Interactions plante-pathogène plante-ravageur
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The Plant Journal - Involvement of the glutamate receptor AtGLR3.3 in plant defense signaling and resistance to Hyaloperonospora arabidopsidis

The Plant Journal - Involvement of the glutamate receptor AtGLR3.3 in plant defense signaling and resistance to Hyaloperonospora arabidopsidis | Increase Plant defenses by secondary metabolites | Scoop.it

Summary

Like their animal counterparts, plant glutamate receptor-like (GLR) homologs are intimately associated with Ca2+ influx through plasma membrane and participate in various physiological processes. In pathogen-associated molecular patterns (PAMP)-/elicitor-mediated resistance, Ca2+ fluxes are necessary for activating downstream signaling events related to plant defense. In this study, oligogalacturonides (OGs), which are endogenous elicitors derived from cell wall degradation, were used to investigate the role of Arabidopsis GLRs in defense signaling. Pharmacological investigations indicated that GLRs are partly involved in free cytosolic [Ca2+] ([Ca2+]cyt) variations, nitric oxide (NO) production, reactive oxygen species (ROS) production and expression of defense-related genes by OGs. In addition, wild-type Col-0 plants treated with the glutamate-receptor antagonist 6,7-dinitriquinoxaline-2,3-dione (DNQX) had a compromised resistance to Botrytis cinerea and Hyaloperonospora arabidopsidis. Moreover, we provide genetic evidence that AtGLR3.3 is a key component of resistance against H. arabidopsidis. In addition, some OGs-triggered immune events such as defense gene expression, NO and ROS production are also to different extents dependent on AtGLR3.3. Taken together, these data provide evidence for the involvement of GLRs in elicitor/pathogen-mediated plant defense signaling pathways in Arabidopsis thaliana.


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Induction and Analysis of the Alkaloid Mitragynine Content of a ...

Induction and Analysis of the Alkaloid Mitragynine Content of a ... | Increase Plant defenses by secondary metabolites | Scoop.it
These elicitors mimic the effects of stresses and thereby activate the plant biochemical system; this induction results in the increased production of secondary metabolites in plant tissues [12]. The elevated production of desired ...
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Rescooped by Satish Tekale from Action des stimulateurs des défenses des plantes
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Biological Control - Diversity in plant systemic resistance induced by Trichoderma

Biological Control - Diversity in plant systemic resistance induced by Trichoderma | Increase Plant defenses by secondary metabolites | Scoop.it

Abstract

Trichoderma species includes many important in agriculture strains, known as effective biological control agents (BCAs). While their capability of mycoparasitism and strong position as antagonists of pathogenic microorganisms are quite well understood, there are still many questions about the process of systemic resistance induced in plants by these fungi. During plant – Trichoderma interaction, numerous elicitors released by the Trichoderma hyphae may induce different types of signals transmitted within the plant e.g. by salicylic acid (SA), jasmonic acid (JA) or reactive oxygen species (ROS), triggering expression of defense proteins. As a result of gene activation, the plant produces enzymes involved in direct supression of pathogens and enhancing the biochemical and structural barriers in plant organism. Depending on theTrichoderma strain, plant species as well as biotic and abiotic conditions, the defensive reactions activated by fungi may oscillate between the two types of systemic resistance: induced systemic resistance (ISR) and systemic acquired resistance (SAR). Different pathways of ISR are investigated both at the biochemical and molecular level, however there are still many issues that need clarification. The main objective of this paper is to present an overview of information about the influence of Trichoderma on the diversity of systemic resistance induction in plants and the possible development of this process.


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