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Endophytic Phytohormones and Their Role in Plant Growth Promotion

Chapter

Abstract

Endophytes are microorganisms that almost every plant harbors. Endophytes often exist within the plant as members of communities comprised of a variety of different microbes. Endophytes are better adapted and protected by their host plants, and, in terms of possible practical application, are considered superior to their rhizospheric counterparts. Like the more well-studied rhizospheric plant growth-promoting bacteria (PGPB), endophytic PGPB utilize a number of different mechanisms to facilitate plant growth and productivity. To this end, various mechanisms used by endophytes are considered and discussed. Due to the environmentally friendly nature and plant growth promotion capabilities of endophytes, it is believed that endophytes have the potential to replace or augment many of the chemicals that are currently used in agricultural practice including fertilizers, pesticides, and chemical remediation agents for a number of environmental hazards.

Keywords

Plant growth-promotion Endophytes Phytohormone Auxin Gibberellin Cytokinin ACC deaminase Ethylene 

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.A&L BiologicalsAgroecological Research Services CentreLondonCanada
  2. 2.Department of BiologyUniversity of WaterlooWaterlooCanada

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