organism: Populus nigra
description: division zone of the root apex (1.5 mm). After the removal of the root cap (0.5 mm),  a 1.5 mm-long segment corresponding to the division zone was collected.
attributes.tag: cultivar
attributes.value: 6-J29
attributes.tag: dev_stage
attributes.value: 5 days-old root
attributes.tag: geo_loc_name
attributes.value: France
attributes.tag: tissue
attributes.value: root apex
attributes.tag: collection_date
attributes.value: 2014
attributes.tag: growth_protocol
attributes.value: Cuttings were grown in hydroponics (half-strength Hoagland nutrient solution supplemented with 0.8mM KH2PO4 and adjusted to pH 5.8). The solution was bubbled to prevent hypoxia and renewed every 2–3 d. The culture system was placed in a dark room (air temperature: 23.7±0.9°C; atmospheric humidity: 60±4%).
attributes.tag: sample_type
attributes.value: tissue sample
attributes.tag: treatment
attributes.value: control 3h division 1.5mm replicate 3
attributes.tag: BioSampleModel
attributes.value: Plant