English to Spanish Science Biology (-tech,-chem,micro-) biochemistry

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In plants and animals, regulation mechanisms and the
catalytic function of GST enzymes have been highly conserved
during evolution (McGonigle et al. 1997). Some
GSTs are constitutively expressed in certain tissues, but GST
regulation can be modified by agrochemicals, including herbicide
safeners and synergists. It is hypothesized that plant
GST gene promoters have multiple regulatory elements that
respond differently to specific or more general stress-related
signals (Droog 1997). Class I corn GSTs have safener responsive
elements , designated by an ATTTCAAA nucleotide
sequence (Jepson et al. 1999). Moreover, GSTs probably
have common mechanisms of signal transduction to activate
gene expression; e.g., all active oxygen species may affect a
common transduction pathway during oxidative stress (Low
and Merida 1996; Tenhaken et al. 1995).
glutathione S-transferase (GST)