Macromicetes de la comarca del Berguedá (Barcelona)

Se da cuenta de ciento cuarenta y ocho especies de macromicetes recolectadas en el transcurso de una serie de excursiones de estudio, realizadas por los autores entre los años 1974 al 1977, por diversas localidades de la comarca del Berguedá (Barcelona).Numerosas especies entre las indicadas fueron recolectadas en varias ocasiones, lo que permitió apreciar detalles de su comportamiento autoecológico.En todos los casos hemos pretendido confirmar las determinaciones taxonómicas utilizando los medios reseñados en la Bibliografia. De cada especie se dispone de su ficha de estudio, con los detalles apreciados al realizar la determinanción, pese a ello no hemos considerado adecuado dar descripciones por no hacer más extenso el presente trabajo.We remark the determinations of a hundred and forty eight species of Macromycets collected the year 1974 to the 1977, mainly in Berguedá district (Barcelona).Most of them could be studied more than once. We tried to confirm the determinations using the last specialized works

Aportaciones al catálogo florístico de la provincia de León II

Se enumeran 512 especies vegetales de la provincia de León (España) recogidas en 693 localidades, se hacen breves asociaciones ecológicas de las mismas, así como de su distribución y comportamiento fitosociológico. Se realiza, al mismo tiempo, la revisión bibliográfica a nivel provincial

Decreased levels of Thioredoxin o1 influences stomatal development and aperture but not Photosynthesis under non-stress and saline conditions

Salinity has a negative impact on plant growth, with photosynthesis being downregulated partially due to osmotic effect and enhanced cellular oxidation. Redox signaling contributes to the plant response playing thioredoxins (TRXs) a central role. In this work we explore the potential contribution of Arabidopsis TRXo1 to the photosynthetic response under salinity analyzing Arabidopsis wild-type (WT) and two Attrxo1 mutant lines in their growth under short photoperiod and higher light intensity than previous reported works. Stomatal development and apertures and the antioxidant, hormonal and metabolic acclimation are also analyzed. In control conditions mutant plants displayed less and larger developed stomata and higher pore size which could underlie their higher stomatal conductance, without being affected in other photosynthetic parameters. Under salinity, all genotypes displayed a general decrease in photosynthesis and the oxidative status in the Attrxo1 mutant lines was altered, with higher levels of H2O2 and NO but also higher ascorbate/glutathione (ASC/GSH) redox states than WT plants. Finally, sugar changes and increases in abscisic acid (ABA) and NO may be involved in the observed higher stomatal response of the TRXo1-altered plants. Therefore, the lack of AtTRXo1 affected stomata development and opening and the mutants modulate their antioxidant, metabolic and hormonal responses to optimize their adaptation to salinity.info:eu-repo/semantics/publishedVersio