Claim · model-written summary
Shoot dry matter yield decreased by 23, 56 and 64% under 6.7, 13.4 and 26.8 µmol L−1 As, respectively.
- Taxon
- rice (Oryza sativa L. cv. Akihikari)
Oryza sativae0 - Treatment
- 6.7, 13.4 and 26.8 µmol L−1 Ase1
- Outcome
- Shoot dry matter yielde1
- Direction
- decreasede1
- Value
- 23, 56 and 64%e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice (Oryza sativa L. cv. Akihikari)”
e1“Shoot dry matter yield decreased by 23, 56 and 64%; however, the values for roots were 15, 35 and 42% for the 6.7, 13.4 and 26.8 µmol L−1 As treatments, respectively.”
Title
Molla Rahman Shaibur; Nobuyuki Kitajima; Reiko Sugawara; et al. Soil Science & Plant Nutrition 2006. doi:10.1111/j.1747-0765.2006.00085.x
Other claims from this paper (16)
- Intervention effect Root dry matter yield decreased by 15, 35 and 42% under 6.7, 13.4 and 26.8 µmol L−1 As, respectively.
- Intervention effect Shoot height decreased by 11, 35 and 43% under arsenic exposure.
- Intervention effect Root height decreased by 6, 11 and 33% under arsenic exposure.
- Observation The shoot was more sensitive to arsenic than the root.
- Intervention effect Leaf number and leaf blade width decreased with arsenic toxicity.
- Mechanism Arsenic toxicity caused chlorosis in the youngest leaves by decreasing chlorophyll content.
- Intervention effect Chlorophyll content decreased with arsenic toxicity.
- Intervention effect Shoot concentrations of K, Mg, Fe, Mn, Zn and Cu decreased significantly at 26.8 µmol L−1 As.
- Intervention effect Shoot accumulations of K, Mg, Fe, Mn, Zn and Cu decreased significantly at 26.8 µmol L−1 As.
- Intervention effect Shoot P concentration increased at 6.7 and 13.4 µmol L−1 As.
- Intervention effect Arsenic concentration increased in roots at higher arsenic treatments.
- Intervention effect Fe concentration increased in roots at higher arsenic treatments.
- Intervention effect Arsenic translocation decreased at 13.4 and 26.8 µmol L−1 As relative to 6.7 µmol L−1 As.
- Observation Arsenic and Fe were mostly concentrated in roots.
- Observation Roots contained almost 8–16-fold more arsenic than shoots under arsenic treatments.
- Mechanism The authors suggested that arsenic-induced Fe deficiency caused chlorosis.