Tree immunity: growing old without antibodies.

Trends Plant Sci

Department of Plant and Food Sciences, Faculty of Agriculture and Environment, University of Sydney, Biomedical Building C81, 1 Central Avenue, Australian Technology Park, Eveleigh, NSW 2015, Australia.

Published: June 2014

AI Article Synopsis

  • Perennial plants must adapt to environmental changes and pathogen attacks throughout their lives, utilizing both physiological responses and genetic mechanisms.
  • The article suggests that long-lived plants employ dynamic pathogen-specific recognition by enhancing our understanding of plant defense genes.
  • The proposed three-pronged genomic approach to tree defense includes gene numbers, genomic architecture, and the accumulation of mutation loads over time.

Article Abstract

Perennial plants need to cope with changing environments and pathogens over their lifespan. Infections are compartmentalised by localised physiological responses, and multiple apical meristems enable repair and regrowth, but genes are another crucial component in the perception and response to pathogens. In this opinion article we suggest that the mechanism for dynamic pathogen-specific recognition in long-lived plants could be explained by extending our current understanding of plant defence genes. We propose that, in addition to physiological responses, tree defence uses a three-pronged genomic approach involving: (i) gene numbers, (ii) genomic architecture, and (iii) mutation loads accumulated over long lifespans.

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Source
http://dx.doi.org/10.1016/j.tplants.2014.01.011DOI Listing

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