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040			_aBiblioteca Universidad del Pacífico
041			_gEng.
100			_aSakuraba, Yasuhito _941507
240			_IInglés. _aEfecto de la señalización de luz roja mediada por fitocromos en la absorción y acumulación de fósforo en el arroz
245			_aEffect of phytochrome-mediated red light signaling on phosphorus uptake and accumulation in rice _cYasihito Sakuraba, Suichi Yanagisawa
260			_aEstados Unidos de América. _aUniversidad de California _bCalifornia: _c2020 (Vol. 66, No. 5)
300			_a745-754, 9 pág _b27.6 * 20.5 cm
362			_aVol. 66, No. 5 (2020) -
365			_2peso colombiano _jck _k57
504			_aIncluye referencias bibliográficas, imágenes y gráficas.
520			_aPhosphorus (P) is a macronutrient essential for plant growth and productivity. Plants uptake P as inorganic phosphate (Pi); however, in the natural ecosystem, Pi availability is frequently a severe limiting factor for plant growth. Thus, plants have evolved several mechanisms, such as the expression of Pi starvation-responsive genes, to adapt to Pi deficient conditions. Although we recently reported that phytochrome (Phy)-mediated red light signaling promotes Pi uptake by increasing expression levels of such genes in the model plant Arabidopsis, it remains elusive whether a similar mechanism exists in agricultural crops. In the present study, we analyzed the effects of red light signaling on Pi uptake in rice (Oryza sativa L.) using osphyA and osphyB single mutants, and the osphyA osphyB double mutant. Unlike osphyA seedlings, osphyB seedlings showed a reduction in Pi uptake and Pi content. Furthermore, illumination of wild-type seedlings with red light significantly promoted Pi uptake, whereas illumination with blue or far-red light did not. The osphyB mutant showed reduced expression levels of several Pi starvation-responsive genes including Pi transporter genes. Additionally, these phenotypes of osphyB knockout mutants were much more evident under Pi deficient conditions than under Pi sufficient conditions. Moreover, red light promoted Pi uptake in seedlings of other plant species including broccoli (Brassica oleracea L. var. italica) and lettuce (Latuca sativa L.). These results suggest that OsPhyB-mediated red light signaling promotes Pi uptake in rice by up-regulating the expression of Pi starvation response-associated genes, and this phenomenon may be conserved in a wide range of plant species.
653			_aARROZ _aACUMULACIÓN DE FÓSFORO _aABSORCIÓN DE FÓSFORO
773	0		_09568 _920128 _dJapón : Japanese Society of Soil Science and Plant Nutrition _oR003163 _tSoil Science and Plant Nutrition _w93 _x0038-0768 _hVol. 66, No. 5 (2020), pág 745-754
856			_uhttps://www.tandfonline.com/doi/full/10.1080/00380768.2020.1798205
942			_2ddc _cANS
945			_a1111816333 _d20220926
999			_c14680 _d14680