Publications by authors named "L J Pizarro"

Disease severity and drought due to climate change present significant challenges to orchard productivity. This study examines the effects of spring inoculation with () on sweet cherry plants, cvs. Bing and Santina with varying defense responses, assessing plant growth, physiological variables (water potential, gas exchange, and plant hydraulic conductance), and the levels of abscisic acid (ABA) and salicylic acid (SA) under two summer irrigation levels.

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Bacterial canker caused by pv. (Pss) is responsible for substantial loss to the production of sweet cherry in Chile. To date, the molecular mechanisms of the Pss-sweet cherry interaction and the disease-related genes in the plant are poorly understood.

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The kinetic analysis of esterase inhibition by acylating compounds (organophosphorus, carbamates and sulfonylfluorides) sometimes cannot yield consistent results by fitting simple inhibition kinetic models to experimental data of complex systems. In this work kinetic data were obtained for demeton-S-methyl (DSM) with human acetylcholinesterase in two kinds of experiments: (a) time progressive inhibition with a range of concentrations, (b) progressive spontaneous reactivation starting with pre-inhibited enzyme. DSM is an organophosphorus compound used as pesticide and considered a model for studying the dermal exposure of nerve agents such as VX gas.

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Article Synopsis
  • Deep-sea mining can release metals into the seabed, potentially disrupting microbial ecosystems crucial for functions like greenhouse gas regulation.
  • A study focused on the deep-sea bacteria Shewanella loihica PV-4 found that exposure to cadmium (Cd) significantly reduced its production of N2O, a potent greenhouse gas.
  • The inhibition of N2O production was linked to decreased expression of key genes involved in nitrogen cycling, suggesting that other deep-sea bacteria might also be affected, warranting further research into diverse communities and varying conditions.
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