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Cytokinin Regulation of Source-Sink Relationships in Plant-Pathogen Interactions

Authors
  • McIntyre, Kathryn E.1, 2
  • Bush, Daniel R.3
  • Argueso, Cristiana T.1, 2
  • 1 Department of Agricultural Biology, Colorado State University, Fort Collins, CO , (United States)
  • 2 Graduate Program in Cell and Molecular Biology, Colorado State University, Fort Collins, CO , (United States)
  • 3 Department of Biology, Colorado State University, Fort Collins, CO , (United States)
Type
Published Article
Journal
Frontiers in Plant Science
Publisher
Frontiers Media SA
Publication Date
Aug 24, 2021
Volume
12
Identifiers
DOI: 10.3389/fpls.2021.677585
PMID: 34504504
PMCID: PMC8421792
Source
PubMed Central
Keywords
Disciplines
  • Plant Science
  • Review
License
Unknown

Abstract

Cytokinins are plant hormones known for their role in mediating plant growth. First discovered for their ability to promote cell division, this class of hormones is now associated with many other cellular and physiological functions. One of these functions is the regulation of source-sink relationships, a tightly controlled process that is essential for proper plant growth and development. As discovered more recently, cytokinins are also important for the interaction of plants with pathogens, beneficial microbes and insects. Here, we review the importance of cytokinins in source-sink relationships in plants, with relation to both carbohydrates and amino acids, and highlight a possible function for this regulation in the context of plant biotic interactions.

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