Claim · model-written summary
About 2% of heat-treated plants were bacteria free.
ArdisiaNot reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ARDISIA”
e0“the bacteria free plants are produced in a small number (about 2%)”
Title
STUDIES ON THE LEAF NODULES. : II. ON THE LEAF NODULES IN THE GENUS ARDISIA.
山田, 保 Institutional Repositories DataBase (IRDB) 1952
Other claims from this paper (10)
- Observation Leaf nodule bacteria fixed free nitrogen much more vigorously in A. punctata than in A. crispa.
- Observation Leaf nodules formed on shoots and adventitious buds despite ultraviolet radiation, cutting, decapitation and embryo culture.
- Intervention effect Heat treatment produced some bacteria free plants.
- Intervention effect Heat treatment formed knobs on growing points and other parts of seeds and infant plants.
- Mechanism The authors propose that leaf nodule bacteria live in plant tissue and air or soil before reaching the stem growing point.
- Association Production of bacteria free plants varied with temperature, time and treatment period.
- Observation The percentage of bacteria free plants was higher in A. crispa than A. punctata.
- Observation Plants without leaf nodules took three to five months to germinate.
- Observation Plants without leaf nodules had poor growth, small size and yellowish green appearance.
- Mechanism The authors attribute abnormalities to physiological damage from high temperature.