Changes in pectins and MAPKs related to cell development during early microspore embryogenesis in Quercus suber L.
نویسندگان
چکیده
منابع مشابه
Diurnal changes in photoprotective mechanisms in leaves of cork oak (Quercus suber) during summer.
Daily variations in photoprotective mechanisms were studied in sun and shade leaves of 40-year-old cork oak (Quercus suber L.) trees during early summer in Portugal. Although trees were not severely water stressed because predawn leaf water potentials remained high, photosynthesis and stomatal conductance decreased at midday. The midday depression in gas exchange was not reversed by short-term ...
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Calcium is widely known to have a role as a signaling molecule in many different processes, including stress response and activation of the embryogenic program. However, there are no direct clues about calcium levels during microspore embryogenesis, an experimental process that combines a developmental switch toward embryogenesis and the simultaneous application of different stressing factors. ...
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We analysed the presence of nuclear bodies and particularly Cajal bodies during representative stages of gametophytic and haploid embryogenic development in isolated microspore and anther cultures of a model system (Brassica napus cv. Topas) and a recalcitrant species (Capsicum annuum L. var. Yolo Wonder B). The nuclear bodies domain is involved on several important roles on nuclear metabolism,...
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*Address correspondence to: María del Carmen Risueño. Plant Development and Nuclear Organization, Centro de Investigaciones Biológicas, CSIC, Velázquez 144, 28006 Madrid, Spain. e-mail: [email protected] ABSTRACT The use of dihaploid plants for obtaining new varieties has been widely reported in different plant species. The regeneration of these plants is carried out by in vitro induction of ...
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The family of Fagaceae, comprises about 900 species, among them the best-known group of this family is the oaks, genus Quercus, that are commonly used as timber or for cork production. Cork is produced by Q. suber, an evergreen oak with major economic and environmental importance for Mediterranean region, in particular for Portugal that is the leading producer of this material. Besides, the eco...
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ژورنال
عنوان ژورنال: European Journal of Cell Biology
سال: 2004
ISSN: 0171-9335
DOI: 10.1078/0171-9335-00368