Claim · model-written summary
Shoot xylem grows in the places of haustoria penetration, which the authors attribute to activation and synchronisation of host and haustorium cambium.
- Taxon
- J. oblonga
Juniperus communis var. oblongae4 - Treatment
- haustoria penetratione4
- Interactor
- A. oxycedri
Arceuthobium oxycedrie4parasite - Outcome
- shoot xylem growse4
- Qualifier
- activation and synchronization of the work of the cambiume4
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“On the shoots of J. oblonga affected by A. oxycedri, in the places of haustoria penetration, the shoot xylem grows, which is a result of activation and synchronization of the work of the cambium of the host plant and the haustorium of the semiparasite”
Title
Z. M. Asadulaev; G. A. Sadykova Contemporary Problems of Ecology 2025. doi:10.1134/s1995425524700938
Other claims from this paper (9)
- Observation The haustorium connects with the xylem of young affected juniper shoots up to the perimedullary part of the pith.
- Association The number of layers of the early spring part of the xylem increases on affected juniper stems.
- Observation Basal calyxes are formed at the base of the Arceuthobium shoot where it penetrates juniper bark.
- Observation The xylem and phloem of juniper stems connect with the hemiparasite conducting system through disjunctive haustorium fragments.
- Observation By 8 to 12 years of stem life the ectophytic part of the semiparasite system is destroyed.
- Observation Excessive thickening of the juniper shoot stops by 8 to 12 years of stem life.
- Observation Shoots of J. oblonga are affected by A. oxycedri up to 12 years of age.
- Association The depth of haustorium penetration depends on the age of the affected shoot.
- Observation Healthy J. oblonga stems show distinctive anatomical features compared with J. communis.