Impact of two different types of heat stress on chloroplast movement and fluorescence signal of tobacco leaves
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem
- MeSH
- chlorofyl chemie metabolismus MeSH
- chloroplasty metabolismus účinky záření ultrastruktura MeSH
- fluorescence MeSH
- fotochemie MeSH
- fotosyntéza fyziologie MeSH
- fototropismus fyziologie účinky záření MeSH
- fyziologický stres fyziologie MeSH
- listy rostlin cytologie metabolismus MeSH
- pohyb buněk fyziologie účinky záření MeSH
- světelná stimulace MeSH
- světlo MeSH
- tabák cytologie metabolismus účinky záření MeSH
- teplota MeSH
- vysoká teplota škodlivé účinky MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
- Názvy látek
- chlorofyl MeSH
Although the chloroplast movement can be strongly affected by ambient temperature, the information about chloroplast movement especially related to high temperatures is scarce. For detailed investigation of the effects of heat stress (HS) on tobacco leaves (Nicotiana tabacum L. cv. Samsun), we used two different HS treatments in dark with wide range of elevated temperatures (25-45 degrees C). The leaf segments were either linearly heated in water bath at heating rate of 2 degrees C min(-1) from room temperature up to maximal temperature (T (m)) and then linearly cooled down to 25 degrees C or incubated for 5 min in water bath at the same T (m) followed by 5 min incubation at 25 degrees C (T-jump). The changes in light-induced chloroplast movement caused by the HS pretreatment were detected after the particular heating regime at 25 degrees C using a method of time-dependent collimated transmittance (CT) and compared with the chlorophyll O-J-I-P fluorescence rise (FLR) measurements. The inhibition of chloroplast movement started at about 40 degrees C while the fluorescence parameters responded generally at higher T (m). This difference in sensitivity of CT and FLR was higher for the T-jump than for the linear HS indicating importance of applied heating regime. A possible influence of chloroplast movement on the FLR measurement and a physiological role of the HS-impaired chloroplast movement are discussed.
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J Plant Physiol. 2005 Feb;162(2):181-94 PubMed
Plant Cell Physiol. 2002 Apr;43(4):367-71 PubMed
Proc Natl Acad Sci U S A. 2009 Aug 4;106(31):13106-11 PubMed
Protoplasma. 2007;230(3-4):231-42 PubMed
J Exp Biol. 2003 Jun;206(Pt 12):1963-9 PubMed
Eur Biophys J. 1999;28(6):468-77 PubMed
Proc Natl Acad Sci U S A. 2001 Jun 5;98(12):6969-74 PubMed
Science. 2001 Mar 16;291(5511):2138-41 PubMed
J Cell Sci. 2001 Jan;114(Pt 2):269-79 PubMed
Plant Physiol. 2001 Jan;125(1):119-22 PubMed
Plant Physiol. 2008 Oct;148(2):829-42 PubMed
Annu Rev Plant Biol. 2003;54:455-68 PubMed
J Plant Res. 2003 Feb;116(1):1-5 PubMed
Photosynth Res. 2004;81(1):49-66 PubMed
Plant Physiol. 2002 Aug;129(4):1773-80 PubMed
Plant Physiol. 1996 Jul;111(3):867-875 PubMed
J Exp Bot. 2006;57(9):2121-32 PubMed
Biochim Biophys Acta. 2007 Apr;1767(4):295-305 PubMed
Plant Physiol. 2009 Mar;149(3):1568-78 PubMed
Photosynth Res. 2000;65(1):41-52 PubMed
Biochim Biophys Acta. 1999 May 26;1412(1):1-28 PubMed
J Integr Plant Biol. 2008 Oct;50(10):1292-9 PubMed
Nature. 2002 Dec 19-26;420(6917):829-32 PubMed
Planta. 1987 Apr;170(4):489-504 PubMed
Photosynth Res. 2002;72(3):271-84 PubMed
Photosynth Res. 1992 Apr;32(1):23-35 PubMed
Plant Physiol. 1999 Sep;121(1):37-44 PubMed
Plant Physiol. 1986 May;81(1):259-67 PubMed
