---
res:
  bibo_abstract:
  - 'Root system growth and development is highly plastic and is influenced by the
    surrounding environment. Roots frequently grow in heterogeneous environments that
    include interactions from neighboring plants and physical impediments in the rhizosphere.
    To investigate how planting density and physical objects affect root system growth,
    we grew rice in a transparent gel system in close proximity with another plant
    or a physical object. Root systems were imaged and reconstructed in three dimensions.
    Root-root interaction strength was calculated using quantitative metrics that
    characterize the extent towhich the reconstructed root systems overlap each other.
    Surprisingly, we found the overlap of root systems of the same genotype was significantly
    higher than that of root systems of different genotypes. Root systems of the same
    genotype tended to grow toward each other but those of different genotypes appeared
    to avoid each other. Shoot separation experiments excluded the possibility of
    aerial interactions, suggesting root communication. Staggered plantings indicated
    that interactions likely occur at root tips in close proximity. Recognition of
    obstacles also occurred through root tips, but through physical contact in a size-dependent
    manner. These results indicate that root systems use two different forms of communication
    to recognize objects and alter root architecture: root-root recognition, possibly
    mediated through root exudates, and root-object recognition mediated by physical
    contact at the root tips. This finding suggests that root tips act as local sensors
    that integrate rhizosphere information into global root architectural changes.@eng'
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Suqin
      foaf_name: Fang, Suqin
      foaf_surname: Fang
  - foaf_Person:
      foaf_givenName: Randy
      foaf_name: Clark, Randy
      foaf_surname: Clark
  - foaf_Person:
      foaf_givenName: Ying
      foaf_name: Zheng, Ying
      foaf_surname: Zheng
  - foaf_Person:
      foaf_givenName: Anjali
      foaf_name: Iyer Pascuzzi, Anjali
      foaf_surname: Iyer Pascuzzi
  - foaf_Person:
      foaf_givenName: Joshua
      foaf_name: Weitz, Joshua
      foaf_surname: Weitz
  - foaf_Person:
      foaf_givenName: Leon
      foaf_name: Kochian, Leon
      foaf_surname: Kochian
  - foaf_Person:
      foaf_givenName: Herbert
      foaf_name: Edelsbrunner, Herbert
      foaf_surname: Edelsbrunner
      foaf_workInfoHomepage: http://www.librecat.org/personId=3FB178DA-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-9823-6833
  - foaf_Person:
      foaf_givenName: Hong
      foaf_name: Liao, Hong
      foaf_surname: Liao
  - foaf_Person:
      foaf_givenName: Philip
      foaf_name: Benfey, Philip
      foaf_surname: Benfey
  bibo_doi: 10.1073/pnas.1222821110
  bibo_issue: '7'
  bibo_volume: 110
  dct_date: 2013^xs_gYear
  dct_identifier:
  - UT:000315812800060
  dct_language: eng
  dct_publisher: National Academy of Sciences@
  dct_title: Genotypic recognition and spatial responses by rice roots@
  fabio_hasPubmedId: '23362379'
...