EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Flash-induced 515 nm absorbance change in chloroplasts with various granum contents






Biochimica et Biophysica Acta 461(1): 25-30

Flash-induced 515 nm absorbance change in chloroplasts with various granum contents

The 515 nm absorbance change was studied in mesophyll and bundle sheath chloroplasts of maize, which contain different amounts of grana. The amplitude of the 515 nm signal (induced by 3 micro seconds flashes repeated at 4 s intervals) has shown a correlation with the granum content of the samples. However, upon addition of N-methylphenazonium methosulphate the 515 nm signal became independent of the amount of grana: in agranal thylakoids a large pool of silent Photosystem I was activated and, as a result, the amplitude of the 515 nm signal of agranal chloroplasts increased to the level exhibited by granal chloroplasts. These data show that the 515 nm absorbance change is not limited to small closed vesicles like grana, but in the presence of suitable electron donors single lamellae of bundle sheath chloroplasts can also be active.

(PDF same-day service: $19.90)

Accession: 038940408

PMID: 69439

DOI: 10.1016/0005-2728(77)90066-4



Related references

Flash induced 515 nanometers absorbance change in chloroplasts with various granum contents. Biochimica et Biophysica Acta 461(1): 25-30, 1977

Charactersitics of light induced 515 nm absorbance change in spinach chloroplasts at lower temeratures. iI. relationship between 515 nm absorbance change and rapid H+ uptake in chloroplasts after a short flash illumination. Plant and cell physiology: 18 (2) 293-301, 1977

Characteristics of light induced 515 nanometer absorbance change in spinach chloroplasts at lower temperatures part 2 relationship between 515 nanometer absorbance change and rapid hydrogen ion uptake in chloroplasts after a short flash illumination. Plant and Cell Physiology 18(2): 293-302, 1977

Correlation between the activity of membrane bound atpase and the decay rate of flash induced 515 nanometer absorbance change in chloroplasts in intact leaves assayed by means of rapid isolation of chloroplasts. Biochimica et Biophysica Acta 679(1): 125-130, 1982

Oxidation reduction potential dependence of the flash induced 518 nm absorbance change in chloroplasts. 1978

Characteristics of the Flash-induced 515 Nanometer Absorbance Change of Intact Isolated Chloroplasts. Plant Physiology 63(4): 778-782, 1979

Correlation between the activity of membrane-bound ATPase and the decay rate of flash-induced 515-nm nano-meter absorbance change in chloroplasts in intact leaves, assayed by means of rapid isolation of chloroplasts Spinach. 1982

Oxidation reduction potential dependence of the flash induced 518 nanometer absorbance change in chloroplasts. Febs Letters 87(2): 329-333, 1978

Proton translocation in the slow rise of the flash induced 515 nanometer absorbance change of intact chloroplasts. Febs Letters 118(1): 119-112, 1980

Study of the slow phase of the flash induced 515 nanometers absorbance change in chloroplasts suspended in normal or deuterated water. Akoyunoglou, G (Ed ) Proceedings Of The International Congress on Photosynthesis, No 5 Photosyntheisis, Vol 1 Photophysical Processes Membrane Energization; Halkidiki, Greece, Sept 7-13, 1980 Xxiii+777p Balaban International Science Services: Philadelphia, Pa , Usa Illus P459-468, 1981