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Abstract  

Two powerful approaches are frequently used to trace incorporation and degradation of plant derived C in soil: 14C labelling/chasing and analysis of lipid composition. In this study, we coupled these approaches in order to trace short term incorporation of plant derived lipids into rhizosphere and non-rhizosphere soil. Methodological optimization was required and implied 14C liquid scintillation counting improvement for plant lipid extracts taking into account organic solvents, solvent-to-scintillation cocktail ratio, and amount of lipids. Following method optimization, 14C data of fatty acids indicated a notable contribution of root derived lipids to rhizosphere and non-rhizosphere soil. Coupling of 14C labelling/chasing with lipid analysis is a powerful and cheap approach for tracing of root derived C in soil allowing for estimation of C budget, for determination of C formation and translocation within plants and from plant to soil, as well as for identification of short term dynamics of specific compound classes within soil.

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., Wong, S. T., Poser, S., Yano, S., Wayman, G., Deloulme, J. C., Chan, G., Storm, D. R. (1998) Cross talk between ERK and PKA is required for Ca 2+ stimulation of CREB-dependent transcription and ERK nuclear translocation. Neuron 21 , 869

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Phenoloids with allelopathic effect (juglone, ctaechin, tannin, gallic acid t-cinnamic acid, caffeic acid, coumarin, thymol, salicin in 1mM concentration) cannot be detected after the absorption from the acceptor plant (bean) by the applied selective analytical method (TLC densitometry). Their localisation can be determined by histochemical reagens (ferrichloride, potassium bichromate, sodium hydroxide). In the foliage leaves and excised bean plants they are present mainly in the parenchymatuos elements of the vascular tissue already on the 3rd day, at the beginning of wilting.             Some substances (tropanes) out of the studied allelopathic alkaloids (atropine, scopolamine, belladonnin, tropine and caffeine) can be detected only in small amounts (7-8%) or only in traces in the leaf. Others (e.g. caffeine) accumulate in substantial amount (almost 200%) in their original form. Alkaloids,as well as phenoloids, can be detected in lesf tissue by histochemical methods (Dragendorff and Meyer reagents).

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Genetics Symposium, Cambridge, pp 23–32. Friebe, B.-Jiang, J.-Raupp, W. J.-McIntosh, R.A.-Gill, B.S. : 1996. Characterization of wheat-alien translocations conferring resistance to diseases and pests

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/1R translocation). Növénytermelés 42 :391–398. Kramarik Kissimon J. A martonvásári 1B/1R transzlokációs búzafajták agronómiai tulajdonságai

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martonvásári 1B/1R transzlokációs búzafajták agronómiai tulajdonságai. (Agronomic properties of Martonvásár wheat varieties bearing the 1B/1R translocation.) Növénytermelés , 42 , 391-398. A martonvásári 1B/1R transzlokációs

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Friebe, B., Hatchett, J. H., Gill, B. S., Sebesta, E. E. (1991): Transfer of hessian fly resistance from rye to wheat via radiation-induced terminal and intercalary chromosomal translocations. Theor. Appl. Genet. , 83 , 33

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6075 6080 Cseh, A., Kruppa, K., Molnár, I., Rakszegi, M., Dolezel, J., Molnár-Láng, M. 2011. Characterization of a new 4BS.7HL wheat-barley translocation line using GISH, FISH

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European Journal of Microbiology and Immunology
Authors: Ahmed Elfiky, Agnes Bonifacius, Joern Pezoldt, Maria Pasztoi, Paweena Chaoprasid, Pooja Sadana, Nagla El-Sherbeeny, Magda Hagras, Andrea Scrima, Petra Dersch, and Jochen Huehn

, effective translocation of Yops via the type III secretion system (T3SS) is only possible via direct cell–Yptb contact, established by different invasins (inv). Particularly, invasin A acts as a potent β 1 integrin ligand (mainly via α 4 β 1 integrin) [ 17

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Acta Biologica Hungarica
Authors: Farzaneh Garousi, Béla Kovács, and Szilvia Veres

foliar application on chicory ( Cichorium intybus L.) . J. Agric. Food Chem. 55 , 795 – 798 . 15. Govasmark , E. , Salbu , B. ( 2011 ) Translocation and re-translocation

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