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Molecular mechanisms of ITS2 processing, a eukaryotic insertion between the 5.8S and LSU rRNA, remain largely elusive even in yeast. To delineate ITS2 structural and functional features which could be common to eukaryotes, we first produced phylo-genetically supported folding models in the vertebrate lineage, then tested them in deeper branchings and, more(More)
The transcription factors CBF/DREB play an important role during low temperature, drought and high-salt stress in higher plants. In this work, we isolated one full-length CBF cDNA clone from the angiosperm Eucalyptus globulus. The derived peptide sequence reveals that it encodes a transcriptional activator that has all the characteristic motifs present in(More)
Note: The sequences have been deposited in GenBank. Accession numbers: ES588357-ES597093 Abbreviations: 4CL: CoA ligase AUX/IAA: auxin/indole-3-acetic acid bZIP: basic leucine zip C3H: p-coumarate 3-hydroxylase C4H: 4-hydroxylase CAD: cinnamyl alcohol dehydrogenase CCR: cinnamoyl CoA reductase CCoAOMT: caffeoyl-CoA 3-O-methyltransferase ESTs: expressed(More)
The development of different forms of communication and transportation during the past century triggered a phenomenon known as globalization. One of the most striking and unexpected features of globalization has been the international exchange of students, whom have considered foreign universities as the following step towards their education. Since(More)
The seasonal adaptation of the teleost Cyprinus carpio to the cyclical changes of its habitat demands physiological compensatory responses. The process involves profound nucleolar adjustments and remarkable changes in rRNA synthesis, which affects ribosomal biosynthesis. In this context, we have demonstrated that the synthesis of several proteins involved(More)
One full length (PrCESA10) and seven other cDNA clones (PrCESA2, 3, 5-8, 11) encoding cellulose synthases (CESAs) were isolated from the coniferous gymnosperm Pinus radiata. PrCESA10 encodes a protein predicted to contain the same domains and regions as angiosperm CESA genes: a zinc finger domain, a hypervariable region 1 (HVR1), a plant-conserved region(More)
Environmental stress factors such as salt, drought and heat are known to affect plant productivity. However, high salinity is spreading throughout the world, currently affecting more than 45 millionha. One of the mechanisms that allow plants to withstand salt stress consists on vacuolar sequestration of Na(+), through a Na(+)/H(+) antiporter. We isolated a(More)
Vacuolar solute accumulation has been shown to be a mechanism by which plants are capable of increasing drought and salt tolerance. The exposure of plants to NaCl induces H+ transport into the vacuole by specialized pumps. One of them corresponds to the vacuolar H+-pyrophosphatase, which generates a H+ gradient across the vacuolar membrane. In our(More)
The purpose of this study was to carry out a bibliometric analysis of the articles published in Chile during 1987-2006 that were categorized into the Plant Science discipline by ISI. The data was extracted from the Web of Science datábase, obtaining a total of 911 articles for analysis. Almost half of the articles were the outcome of an international(More)