Physiological changes in tomato leaves arising from Xanthomonas gardneri infection

Effector XopD suppresses tissue degeneration in Xanthomonas-infected tomato leaves.

Some plant pathogens deploy dozens of effector proteins through the type III secretion apparatus into host cells. These effectors manipulate host basal defenses and metabolism to the advantage of the pathogen, a process essential for pathogenesis (reviewed in Mudgett 2005; Grant et al., 2006). Effectors can also betray the presence of the pathogen, triggering robust plant defense responses that...

Quantification of Ethylene Production in Tomato Leaves Infected by Xanthomonas euvesicatoria.

Ethylene is a gaseous plant hormone controlling fruit ripening, flower opening, leaf senescence as well as abscission, and disease symptom development. Ethylene plays a critical role in the bacterial pathogen Xanthomonas euvesicatoria (X. euvesicatoria)-elicited symptom development in tomato. This protocol describes the measurement of ethylene gas produced by tomato leaves infected with X. euve...

Salinity-Induced Changes of Multiparametric Fluorescence Indices of Tomato Leaves

The aim of our study was to identify appropriate multiparametric fluorescence ratios to evaluate the response of tomato (Solanum lycopersicum) genotypes to salinity. In this context, we hypothesized that the fluorescence indices BFRR_UV, FLAV, NBI and SFR provided by the multiparametric fluorescence technique reveal the impact of salinity on tomato leaves. For this purpose, the tomato genotypes...

The effect of Botrytis cinerea infection on the antioxidant profile of mitochondria from tomato leaves.

Infection of tomato leaves with the necrotrophic fungus Botrytis cinerea resulted in substantial changes in enzymatic and non-enzymatic components of the ascorbate-glutathione cycle as well as in superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione transferase (GST), and l-galactono-gamma-lactone dehydrogenase (GLDH) activities. In the initial phase of the 5 d experiment CuZ...

Changes arising from docking of fat-tailed sheep in feedlot performance