Abstract
One of the most promising areas of research concerned with plants and their reaction to their environments is that of natural plant defense systems. Within these defense systems lies a variety of both constitutive and active defenses in which a broad spectrum of chemicals are involved. These chemicals are either present all the time as toxins of deterrents or are induced in response to signals that are released from the sites of pest attacks. In this latter category are two types of responses; (i) those that are localized, in which signals travel to only a relatively few cells within the vicinity of the attack site and, (ii) those that are distal response. In the latter case, signals travel throughout the plant to mobilize defense systems in cells many cm away. Many of the active defense responses can produce resistances that are very broad, and can include a variety of pathogens, including viruses, bacteria and fungi (see Kúc, 1982; Rhodes, 1980; Schultz, 1982). The biochemistry of the regulation of the induced defense compounds and the molecular biology of the signals and the genes that are regulated are generally not known.
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References
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Ryan, C.A. (1984). Defense Responses of Plants. In: Verma, D.P.S., Hohn, T. (eds) Genes Involved in Microbe-Plant Interactions. Plant Gene Research. Springer, Vienna. https://doi.org/10.1007/978-3-7091-8739-5_14
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DOI: https://doi.org/10.1007/978-3-7091-8739-5_14
Publisher Name: Springer, Vienna
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