LieÃ„ÂivÃƒÂ© rastliny v meniacich sa environmentÃƒÂ¡lnych podmienkach

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Vliv biotických a abiotických stresorů na vlastnosti rostlin 11.5.2005 Literatura /1/ ŠINDELÁŘOVÁ, M., ŠINDELÁŘ, L., BURKETOVÁ, L.: Dynamic changes in the activities of glucose-6-phosphate dehydrogenase, ribulose bisphosphate carboxylase and ribonuclease in tobacco leaves, leaf discs and mesophyll protoplasts in relation to TMV multiplication. – Physiol. mol. Plant Pathol. 51: 99-109, 1997. /2/ ŠINDELÁŘ, L., ŠINDELÁŘOVÁ, M.: Correlation of viral-RNA biosynthesis with glucose-6- phosphate dehydrogenase activity and host resistance. – Planta 215: 862-869, 2002. /3/ GOODMAN, R N., KIRÁLY, Z., WOOD, K.R.: The Biochemistry and Physiology of Plant Disease. University of Missouri Press, Columbia, Pp. 46-74. 1986. /4/ WILHELMOVÁ, N., PROCHÁZKOVÁ, D., ŠINDELÁŘOVÁ, M., ŠINDELÁŘ, L.: Photosynthesis in leaves of Nicotiana tabacum L. infected with tobacco mosaic virus. - Biologia Plantarum, submitted. /5/ JENSEN, S.G.: Photosynthesis, respiration and other physiological relationships in barley infected with barley yellow dwarf virus. – Phytopathology 58: 204-208, 1968. /6/ TU, J.C., FORD, R.E., KRASS, C.J.: Comparisons of chloroplasts and photosynthetic rates of plants infected by maize dwarf mosaic virus. – Phytopathology 58:285-288, 1968. /7/ REINERO, A., BEACHY, R.N.: Reduced photosystem II activity and accumulation of viral coat protein in chloroplasts of leaves infected with tobacco mosaic virus. – Plant Physiol. 89: 111-116, 1989. /8/ HODGSON, R.A.J., BEACHY, R.N., PAKRASI, H.B.: Selective inhibition of photosystem II in spinach by tobacco mosaic virus: an effect of the viral coat protein. – FEBS Lett. 245: 267-271, 1989. /9/ REINERO, A., BEACHY, R.N.: Association of TMV coat protein with chloroplast membrane s in virus-infected leaves. – Plant mol. Biol. 6: 291-301, 1986. /10/ MONTALBINI, P., LUPATTELLI, M.: Effect of localized and systemic tobacco mosaic virus infection on some photochemical and enzymatic activities of isolated tobacco chloroplasts. – Physiol. mol. Plant Pathol. 345: 147-162, 1986. /11/ VAN KOOTEN O., MEURS, C., VAN LOON, L.C.: Photosynthetic electron transport in tobacco leaves infected with tobacco mosaic virus. – Physiol. Plant. 30: 446-452, 1990. /12/ CLARK, M.F., ADAMS, A.N.: Characteristics of the microplate method of enzyme-linked immunosorbent assay for the detection of plant viruses. - J. gen. Virol. 34: 473-483, 1977. /13/ PORRA, R.J., THOMPSON, W.A., KRIEDEMANN, P.E.: Determination of accurate extinction coefficient and simultaneous equations for analysis chlorophylls a and b extracted with four 259
Vliv biotických a abiotických stresorů na vlastnosti rostlin 11.5.2005 different solvents: verification of concentration of chlorophyll standards by atomic absorption spectroscopy. - Biochim. Biophys. Acta 975: 384-394, 1989. /14/ PROCHÁZKOVÁ, D., WILHELMOVÁ, N.: Changes in antioxidative protection in bean cotyledons during natural and continuous irradiation-accelerated senescence. – Biologia Plantarum 48: 33-39. 2004. /15/ VAN KOOTEN O., SNEL J.F.H.: The use of chlorophyll flourescence and nomenclature in plant stress physiology. Photosynth. Res. 25: 147-150, 1990. /16/ ROHÁČEK, K.: Chlorophyll fluorescence parameters: the definitions, the photosynthetic meaning, and mutual relationships. - Photosynthetica 40: 13-29, 2002. /17/ POSPÍŠILOVÁ, J., WILHELMOVÁ, N., SYNKOVÁ, H., ČATSKÝ, J., KREBS, D., TICHÁ, I., HANÁČKOVÁ, B., SNOPEK, J.: Acclimation of tobacco plantlets to ex vitro conditions as affected by application of abscisic acid. – J. exp. Bot. 49: 863-869, 1998. /18/ BANERJEE, N., WANG, J.Y., ZAITLIN, M.: A single nucleotide change in the coat protein gene of tobacco mosaic virus is involved in the induction of severe chlorosis. – Virology 207: 234- 239, 1995. The changes in photosynthetic characteristics of tobacco leaves in two consecutive stages of TMV infection Key words: Carotenoids, chlorophyll fluorescence, electron transport, Nicotiana tabacum L., photosynthesis We compared two successive stages of infection by tobacco mosaic virus, the first in the stadium of vein clearing and the second when two different regions, i.e. light- and dark- green islands in the infected leaves were apparent and symptoms were fully developed. The chlorophyll and carotenoid contents and ratio of chlorophyll a/b decreased with progression of infection and were the lowest in light-green islands. The maximum quantum yield of PS 2 photochemistry F V /F M was decreased in a row from first stage, DGI and LGI. The same is true for the ratio of quantum yields of photochemical and concurrent non-photochemical processes in PS 2 F V /F 0 . The decrease of effective quantum yield of photochemical energy conversion in infected leaves was not so uniform, the highest value was observed in dark-green islands. Generally, the most marked impairment of photosynthetic apparatus was developed in light-green islands. Poděkování Tyto výsledky jsou součástí grantového projektu financovaného GA ČR č. 522/02/0708. 260
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