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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Why is salicylic acid considered to be a general systemic response to damage?

Summary Introduction

To review:

The reason due to which the salicylic acid is included in general systemic response to the damage.

Introduction:

The plants have two types of defense mechanism by which they can protect themselves from the pathogenic attacks. The first response is a general response in which the protection is provided from every pathogen. The second response is an effector-mediated immune response in which a specific pattern of protein is recognized on the surface of pathogens. Together, these responses help the plants in their survival.

Explanation

The general response of plants provides the first line of defense against any invading bacteria or virus or fungi. In this response, the plants secrete chemicals immediately after the interaction with the foreign invaders. Salicylic acid (SA) is immediately secreted when the plant's cells interact with the bacteria. The presence of SA immediately after wound creation is confirmed by scientists in many parts of the plants.

The SA leads to the synthesis of PR (pathogenesis-related) proteins, which are hydrolytic enzymes...

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