Detailed Information on Publication Record
2016
Cyto-histological and morpho-physiological responses of common duckweed (Lemna minor L.) to chromium
REALE, L., F. FERRANTI, S. MANTILACCI, M. CORBOLI, S. AVERSA et. al.Basic information
Original name
Cyto-histological and morpho-physiological responses of common duckweed (Lemna minor L.) to chromium
Authors
REALE, L. (380 Italy), F. FERRANTI (380 Italy), S. MANTILACCI (380 Italy), M. CORBOLI (380 Italy), S. AVERSA (380 Italy), Flavia LANDUCCI (380 Italy, guarantor, belonging to the institution), C. BALDISSEROTTO (380 Italy), L. FERRONI (380 Italy), S. PANCALDI (380 Italy) and R. VENANZONI (380 Italy)
Edition
Chemosphere, OXFORD, Elsevier Science, 2016, 0045-6535
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 4.208
RIV identification code
RIV/00216224:14310/16:00089547
Organization unit
Faculty of Science
UT WoS
000369196300013
Keywords in English
Chromium; Growth inhibition test; Lemna minor; Photosystem II; Plastid; Starch
Změněno: 20/3/2018 13:13, Mgr. Lucie Jarošová, DiS.
Abstract
V originále
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.