[Setaria viridis tolerance of high zinc concentrations].
The effect of high zinc concentrations on the growth and photosynthetic apparatus of Setaria viridis (L.) Beauv. was investigated under laboratory conditions and a vegetation experiment. The experiments showed that zinc concentrations of 10(-6) to 10(-3) M did not influence seed germination. Moreover, zinc in concentrations of 40 and 80 mg kg(-1) substrate had no significant effect on most of the plant growth parameters. However, higher metal concentrations (160 and 320 mg kg(-1) substrate) inhibited shoot biomass, leaf area, inflorescence length, and biomass. At the same time, parameters such as the content of chlorophyll (a + b), F0, F(v), and the F(v)/F(m) rate were not reduced even in the presence of zinc in the highest concentrations (320 mg kg(-1) substrate). S. viridis tolerance of high zinc concentrations, as well as its capacity to accumulate zinc in roots and shoots, suggests the plant can be used for phytoremediation of zinc polluted soils.
N M
NM
Kaznina
A F
AF
Titov
G F
GF
Laĭdinen
A V
AV
Talanov
D001673:Biodegradation, Environmental; D004305:Dose-Response Relationship, Drug; D004351:Drug Resistance / Q000187:drug effects / Q000502:physiology*; D018525:Germination / Q000187:drug effects / Q000502:physiology; D010788:Photosynthesis / Q000187:drug effects / Q000502:physiology; D018515:Plant Leaves / Q000254:growth & development / Q000378:metabolism; D018520:Plant Shoots / Q000254:growth & development / Q000378:metabolism; D012639:Seeds / Q000254:growth & development / Q000378:metabolism; D032983:Setaria Plant / Q000235:genetics* / Q000254:growth & development; D012989:Soil Pollutants / Q000378:metabolism* / Q000494:pharmacology*; D015032:Zinc / Q000378:metabolism* / Q000494:pharmacology*
D012989:Soil Pollutants; D015032:Zinc