REALE, L., F. FERRANTI, S. MANTILACCI, M. CORBOLI, S. AVERSA, Flavia LANDUCCI, C. BALDISSEROTTO, L. FERRONI, S. PANCALDI a R. VENANZONI. Cyto-histological and morpho-physiological responses of common duckweed (Lemna minor L.) to chromium. Chemosphere. OXFORD: Elsevier Science, roč. 145, February, s. 98-105. ISSN 0045-6535. doi:10.1016/j.chemosphere.2015.11.047. 2016.
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Základní údaje
Originální název Cyto-histological and morpho-physiological responses of common duckweed (Lemna minor L.) to chromium
Autoři REALE, L. (380 Itálie), F. FERRANTI (380 Itálie), S. MANTILACCI (380 Itálie), M. CORBOLI (380 Itálie), S. AVERSA (380 Itálie), Flavia LANDUCCI (380 Itálie, garant, domácí), C. BALDISSEROTTO (380 Itálie), L. FERRONI (380 Itálie), S. PANCALDI (380 Itálie) a R. VENANZONI (380 Itálie).
Vydání Chemosphere, OXFORD, Elsevier Science, 2016, 0045-6535.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10600 1.6 Biological sciences
Stát vydavatele Velká Británie a Severní Irsko
Utajení není předmětem státního či obchodního tajemství
Impakt faktor Impact factor: 4.208
Kód RIV RIV/00216224:14310/16:00089547
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.1016/j.chemosphere.2015.11.047
UT WoS 000369196300013
Klíčová slova anglicky Chromium; Growth inhibition test; Lemna minor; Photosystem II; Plastid; Starch
Štítky AKR, rivok
Změnil Změnila: Mgr. Lucie Jarošová, DiS., učo 205746. Změněno: 20. 3. 2018 13:13.
Anotace
Along with cadmium, lead, mercury and other heavy metals, chromium is an important environmental pollutant, mainly concentrated in areas of intense anthropogenic pressure. The effect of potassium dichromate on Lemna minor populations was tested using the growth inhibition test. Cyto-histological and physiological analyses were also conducted to aid in understanding the strategies used by plants during exposure to chromium. Treatment with potassium dichromate caused a reduction in growth rate and frond size in all treated plants and especially at the highest concentrations. At these concentrations the photosynthetic pathway was also altered as shown by the decrease of maximum quantum yield of photosystem II and the chlorophyll b content and by the chloroplast ultrastructural modifications. Starch storage was also investigated by microscopic observations. It was the highest at the high concentrations of the pollutant The data suggested a correlation between starch storage and reduced growth; there was greater inhibition of plant growth than inhibition of photosynthesis, resulting in a surplus of carbohydrates that may be stored as starch. The investigation helps to understand the mechanism related to heavy metal tolerance of Lemna minor and supplies information about the behavior of this species widely used as a biomarker. (C) 2015 Elsevier Ltd. All rights reserved.
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