+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Photoinhibition and recovery of photosynthesis in leaves of Vitis berlandieri and Vitis rupestris

, : Photoinhibition and recovery of photosynthesis in leaves of Vitis berlandieri and Vitis rupestris. Journal of Plant Physiology 161(2): 203-210

Photoinhibition of photosynthesis was studied in Vitis berlandieri and Vitis rupestris leaves under controlled conditions (irradiation of detached leaves to about 1900 micromol m(-2) s(-1)). The degree of photoinhibition was determined by means of the ratio of variable to maximum chlorophyll (Chl) fluorescence (Fv/Fm) and electron transport measurements. The potential efficiency of PS2, Fv/Fm declined, Fo increased significantly in leaves of V. berlandieri, while Fo decreased in V. rupestris. In isolated thylakoids, the rate of whole chain and PS2 activity markedly decreased in high light irradiated more in leaves of V. berlandieri than in leaves of V. rupestris. A smaller inhibition of PS1 activity was also observed in both leaves. In the subsequent dark incubation, fast recovery was observed in both leaves and reached maximum PS2 efficiencies similar to those observed in non-photoinhibited leaves. The artificial exogenous electron donors DPC, NH2OH and Mn2+ failed to restore the high light induced loss of PS2 activity in V. berlandieri leaves, while DPC and NH2OH significantly restored in V. rupestris leaves. It is concluded that high light inactivates on the donor side of PS2 and acceptor side of PS2 in V. rupestris and V. berlandieri leaves, respectively. Quantification of the PS2 reaction center protein D1 and 33 kDa protein of water splitting complex following high light exposure of leaves showed pronounced differences between V. berlandieri and V. rupestris leaves. The marked loss of PS2 activity in high light irradiated leaves was due to the marked loss of D1 protein and 33 kDa protein in V. berlandieri and V. rupestris leaves, respectively.


PMID: 15022835

DOI: 10.1078/0176-1617-00838

Other references

Robinson A.H.W., 1961: The hydrography of Start bay and its relationship to beach changes at Hallsands. Beach levels at Hallsands on the south Devon coast have remained relatively stable for some 60 years despite the presence of widespread sand deposits on the rock shelf forming the sea bed of Start bay and on the offshore Skerries bank which theore...

Kessler, P.; Alemdag, Y.; Behne, M.; Vettermann, J.; Hohmann, A.; Hacker, H., 1995: CO-2 dependent changes of cerebral vessel diameter and cerebral blood flow velocity can be measured by magnetic resonance angiography. Anesthesiology (Hagerstown) 83(3A): A149

Pitis, I.; Ptr scioiu, R., 1958: Studies on the quality and the purification of feed water used in the wet milling industry. Mills which operate on a large scale but which do not have a sufficient supply of feed water for the wet milling of cereal grains pose the problem of the reuse of the water in closed circuit. The purification of the water can be accomplished by me...

Boyland, E., 1983: Surface active agents as tumor promoters. Environmental Health Perspectives 50: 347-350

Manns, U.; Anderberg, A.A., 2007: Relationships of Anagallis foemina and A-arvensis (Myrsinaceae): New insights inferred from DNA sequence data. We investigated the relationship between Anagallis arvensis and A. fibemina using nuclear and plastid molecular data. Information from the nuclear rDNA internal transcribed spacer (ITS) region and four different chloroplast loci; ndhF, trnL-F, rp1...

Wagner, F.; Hart, R.; Fink, R.; Classen, M., 1990: Evaluation of inter- and intramolecular primary structure homologies of interferons by a Monte Carlo method. Using Sellers TT algorithm, primary structure repeats have been described for interferon (IFN)-alpha, -beta 1, and gamma. To reevaluate these results and to extend them to IFN-beta 2 (interleukin-6), a modified algorithm was developed that uses a...

Harris, S.; Vogelsang, M.; Potter, G.; Bass, E., 2004: Case study: The effects of ivermectin given postpartum on the incidence and severity of foal heat diarrhea. Professional animal scientist 20(4): 372-375

Park, S.H.; Kim, S.E.; Ryu, S.K., 2000: Left main coronary artery aneurysm with chronic total occlusion of both left coronary arteries in a young athlete. Aneurysms of the left main coronary arteries are found in 0.1% of angiograms. This case involves an athlete with a left main coronary artery aneurysm, which was combined with chronic total occlusion of the proximal left anterior descending and pro...

Josephson, M.E.; Horowitz, L.N.; Kastor, J.A., 1978: Paroxysmal supraventricular tachycardia in patients with mitral valve prolapse. The mechanism of supraventricular tachycardia was evaluated in twelve patients with mitral valve prolapse utilizing standard intracardiac recording and stimulation techniques. Eight patients had normal electrocardiograms, three had a short PR inte...

Schorler, B.; Thallwitz, J.; Schiller, K., 1906: Pflauzen- und Thierwel des Moritzburger Grossteiches bei Dresden. Annales de Biologie Lacustre Bruxelles, 1: 193-310