root_structure

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• Label: Plant root structures
• Entity URI: https://w3id.org/APD/traits/trait_0030028
• Type: categorical
• Definition: A trait which indicates types [NCIT:C25284] of root [PO:0009005] structures [PATO:0000141], including structures associated with mutualisms [GO:0085030] with mycorrhizae [EnvThes:20656].;Specific specialized types of root structures and root symbioses, especially symbioses with mycorrhizal fungi.
• Additional comments: None
• Allowed values:

  value	description
  arbuscular_mycorrhizal	Symbiosis in which the mycorrhizal fungi does penetrate the cortex cells of the plant roots and its hyphae form arbuscules and vesicles inside the plant root; endomycorrhizal, AM, VAM.
  carnivorous	Plant has non-mycorrhizal carnivorous root.
  cluster_roots	Non-proteoid taxa with cluster roots.
  coiling_vam	Associations that spread predominantly by intracellular hyphal coils within roots.
  dauciform_root	A type of cluster root found in the family Cyperaceae.
  ectomycorrhizal	Symbiosis in which the mycorrhizal fungi does not penetrate the cortex cells of the plant roots.
  ericoid_mycorrhizal	A form of arbuscular mycorrhizal relationship only found on plants in the order Ericales. The fungi's hyphae penetrate the plant root but do not form arbuscules.
  fine_roots	Particularly fine roots for nutrient uptake.
  haustorium	A highly modified stem or root of a parasitic plant, such as mistletoe , or a specialized branch or tube originating from a hairlike filament (hypha) of a fungus. The haustorium penetrates the tissues of a host and absorbs nutrients and water.
  hemiparasitic_root	Plant with a partially parasitic root.
  long_root_hairs	Plant with specialised long root hairs.
  mycorrhizal	Plant mycorrhizal but type not specified.
  non_mycorrhizal	Plants lacking a mycorrhizal symbiont.
  orchid_mycorrhizal	A mycorrhizal relationship specific to orchid taxa, and for most orchids, essential for seedlings to establish.
  parasitic_root	Plant with a parasitic root.
  proteoid_root	Also known as cluster roots, are plant roots that form clusters of closely spaced short lateral rootlets and aid in nutrient upake in nutrient-poor soils; common in members of the family Proteaceae but present in other families as well.
  root_hairs	Plant with specialised root hairs.
  sand-binding	Persistent sheaths of sand that form around the roots of taxa in the families Restionaceae, Cyperaceae, Haemodoraceae, and Lomandraceae in western Australia. Assumed to function in nutrient uptake.
  saprophyte	Plant that acquires nutrients from decaying biomass.
  subepidermal_mycorrhizal	Mycorrhizae where hyphae grow in a cavity under epidermal cells. Only in the genus Thysanotus (family Laxmaniaceae).
  unknown	Root structures unknown.

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0030028) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 4,224 records. This includes:

• data for 3,415 species.
• data for 172 families.
• data from 17 datasets (see the portal Citations tab for a list of sources)