Publication details
Morphology and anatomy of pea and maize roots exposed to organic pollutant
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Proceedings |
| Conference | Structure and Function of Roots - 7th International symposium - Programme and Proceedings |
| MU Faculty or unit | |
| Citation | |
| Field | Physiology |
| Keywords | fluoranthene; root morphology; root anatomy; Pisum sativum; Zea mays; |
| Description | Five days-old pea (Pisum sativum)and maize (Zea mays) plants were cultivated in nutrient solution without (control) or with addition of polycyclic aromatic hydrocarbon fluoranthene (FLT; 0.1, 1 and 7 mg/L) for next 7 days. By means of image analysis methods, morhpological characteristics of roots were assessed (lenght of primary root and its non-branched apical part, length and number of lateral roots). Primary root was used for anatomical studies - crosssections were prepared from the root tip, zone before lateral root occurence and in zone of lateral roots. Results proved a shortening of primary root and its apical part in respose to increasing FLT concentration and a stimulation in number and lenght of lateral roots in lower FLT concentrations (0.1 and 1 mg/L) in both plant species. Anatomical study proved changes in aerenchyma occurence in roots (more aerenchyma formed in pea, less in maize) and in the highest FLT concentration (7 mg/L) a negative effect on constitution of root primordia and the development of lateral roots which were damaged and strongly shortened. |
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