Table 2.

Changes in the relative level of dlps in Arabidopsis mitochondria.

Arabidopsis thaliana
Antibody	K						DHN24
Organ	Rosette leaves				Cell cultures
Stress treatment	Size (kDa)	Control	Cold	Heat	Size (kDa)	Control	Size (kDa)	Control
	20	n.d.	89.0	n.d.	20	57.4	20	68.5
	40	20.0	67.0	26.4	25	122.2	25	137.5
	50	36.1	53.2	27.1	35	72.4	40	29.7
	55	39.2	66.4	30.8	45	65.0	50	66.6
	100	86.6	58.4	108.9	50	65.2	65	110.3
					55	65.7	70	114.3
					65	56.7	100	46.3
					70	133.1

Thermostable proteins are denoted in bold. Thermolabile proteins (considered as not resistant for boiling in 15 min.) are underlined. n.d.- not detected or a very low-abundant protein. The thermostability of mitochondrial dlps from leaves of Arabidopsis was not determined. The results of densitometrical analysis of three independent Western blots were presented as average value in arbitrary units after background subtraction, as the optical density of protein bands per square pixel.