+ 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

Ecophysiology of virus-infected plants: A case study of Eupatorium makinoi infected by geminivirus

, : Ecophysiology of virus-infected plants: A case study of Eupatorium makinoi infected by geminivirus. Plant Biology (Stuttgart) 3(3): 251-262, May

Plant viruses are prevalent in wild plants. However, few studies have been conducted on virus infection in natural plant communities. This paper describes a series of our studies on the Eupatorium makinoi-geminivirus system in order to consider the role of plant viruses in natural plant communities. Eupatorium makinoi is a short-lived perennial, which is widely distributed in Japan. Variegated E. makinoi plants caused by geminivirus infection are prevalent in the field. After a virus epidemic in a local E. makinoi population, the number of plants declined and, consequently, the local population nearly became extinct. Inferior performances of virus-infected plants were attributed to impaired photosynthesis. Photosynthetic rates of virus-infected leaves were especially lowered under low irradiance. This decrease was caused by a loss of chlorophyll (Chl) proteins, particularly light-harvesting chlorophyll a/b binding proteins associated with photosystem II (LHCII). The preferential loss of LHCII was caused by a decrease in the activity of Chl synthesis. These studies demonstrate that geminiviruses play an important role in determining fitness of E. makinoi plants and clarify the physiological mechanism of the decrease in fitness of virus-infected E. makinoi. Lowered fitness of E. makinoi by the infection would underlie the population dynamics observed in the field. Thus, virus infection is one of the most important biotic factors that affect various ecological and evolutionary phenomena in natural ecosystems.


DOI: 10.1055/s-2001-15199

Other references

Engels, M., 1980: Zygospore formation in Pleurotaenium cylindricum (Turner) Schmidle var. stuhlmannii (Hieronymus) Krieger (Desmidiaceae, Chlorophyta). Mitteilungen aus dem Institut fur Allgemeine Botanik Hamburg7(17): 5-11

Rexroad C.E.Jr, 1990: Production of cell colonies from ovine blastocysts. Theriogenology 33(1): 305

Robyt J.F., 1976: Acceptor reaction mechanism in dextran biosynthesis by dextran sucrase from leuconostoc mesenteroides b 512. Federation Proceedings: 1736

Nicola, G.; Torrigiani, G., 1958: EEG study of angiomatous deformities of the brain. Rivista di Neurologia 28(4): 436-449

Kalchenko, V.; Brill, A.; Bayewitch, M.; Fine, I.; Zharov, V.; Galanzha, E.; Tuchin, V.; Harmelin, A., 2007: In vivo dynamic light scattering imaging of blood coagulation. Physiological blood coagulation/clotting is an essential biological process that is initiated by vessel injury and includes a cascade of enzymatic reactions finalized by fibrin polymerization and clot formation. We utilize dynamic light scattering...

Zanninelli, G.; Wengrower, D.; Sistieri, M.; Villanova, A.; Papo, O.; Goldin, E., 2000: Captopril prevents fibrosis in experimental colitis by downregulating transforming growth factor-beta1 expression. Gastroenterology 118(4 Suppl 2 Part 1): A115, April

Misciagna, G.; Del Pilar Díaz, M.; Caramia, D.V.; Bonfiglio, C.; Franco, I.; Noviello, M.R.; Chiloiro, M.; Abbrescia, D.I.; Mirizzi, A.; Tanzi, M.; Caruso, M.G.; Correale, M.; Reddavide, R.; Inguaggiato, R.; Cisternino, A.M.; Osella, A.R., 2017: Effect of a Low Glycemic Index Mediterranean Diet on Non-Alcoholic Fatty Liver Disease. A Randomized Controlled Clinici Trial. Non-Alcoholic Fatty Liver Disease (NAFLD) is currently the most common form of liver disease worldwide affecting all ages and ethnic groups and it has become a consistent threat even in young people. Our aim was to estimate the effect of a Low Gly...

Walvoort, M.T.C.; Dinkelaar, J.; van den Bos, L.J.; Lodder, G.; Overkleeft, H.S.; Codée, J.D.C.; van der Marel, G.A., 2010: The impact of oxacarbenium ion conformers on the stereochemical outcome of glycosylations. The search for stereoselective glycosylation reactions has occupied synthetic carbohydrate chemists for decades. Traditionally, most attention has been focused on controlling the S(N)2-like substitution of anomeric leaving groups as highlighted by...

Lo, R.S.; Chen, Y.G.; Shi, Y.; Pavletich, N.P.; Massagué, J., 1998: The L3 loop: a structural motif determining specific interactions between SMAD proteins and TGF-beta receptors. Signal transduction specificity in the transforming growth factor-beta (TGF-beta) system is determined by ligand activation of a receptor complex which then recruits and phosphorylates a subset of SMAD proteins including Smads 1 and 2. These then...

Sears, M.R.; Sears, M.R., 2001: Short-acting beta-agonist research: a perspective. 1997. Asthma mortality increased sharply in New Zealand in 1977, prompting a national investigation into circumstances of asthma deaths. Subsequent observations of improved asthma control in subjects withdrawn from regular beta(2)-agonist treatment rais...