0379832 - BC 2013 RIV NL eng J - Článek v odborném periodiku
Vránová, V. - Zahradníčková, Helena - Janouš, Dalibor - Skene, K. R. - Matharu, A. S. - Rejšek, J. - Formánek, P.
The significance of D-amino acids in soil, fate and utilization by microbes and plants: review and identification of knowledge gaps.
Plant and Soil. Roč. 354, 1-2 (2012), s. 21-39. ISSN 0032-079X. E-ISSN 1573-5036
Grant ostatní: IGA project(CZ) IGA project 47/2010-2012
Výzkumný záměr: CEZ:AV0Z50070508; CEZ:AV0Z60870520
Klíčová slova: soil D-amino acids * input * microorganisms
Kód oboru RIV: CE - Biochemie
Impakt faktor: 2.638, rok: 2012
http://link.springer.com/article/10.1007/s11104-011-1059-5?null

D-amino acids are far less abundant in nature than L-amino acids. Both L- and D-amino acids enter soil from different sources including plant, animal and microbial biomass, antibiotics, faeces and synthetic insecticides. Moreover, D-amino acids appeal in soil due to abiotic or biotic racemization of L-amino acids. Both L- and D-amino acids occur as bound in soil organic matter and as “free“ amino acids dissolved in soil solution or exchangeably bound to soil colloids. D-amino acids are mineralized at slower rates compared to the corresponding L-enantiomers. Plants have a capacity to directly take up “free“ D-amino acids by their roots but their ability to utilize them is low and thus D-amino acids inhibit plant growth. Current knowledge on D-amino acids in soil and their utilization by soil microorganisms and plants and identification of critical knowledge gaps and directions for future research are reviewed in this work. Assessment of “free“ D-amino acids in soils is currently complicated due to the lack of appropriate extraction procedures. This information is necessary for consequent experimental determination of their significance for crop production and growth of plants in different types of managed and unmanaged ecosystems. Hypotheses on occurrence of “free“ D-amino acids in soil are presented in this review.
Trvalý link: http://hdl.handle.net/11104/0210701