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| Registros recuperados: 26 | |
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| Alcântara,Berenice K. de; Pizzaia,Daniel; Piotto,Fernando A.; Borgo,Lucélia; Brondani,Gilvano E.; Azevedo,Ricardo A.. |
| Lipid peroxidation and root elongation of Eucalyptus grandis × Eucalyptus camaldulensis were studied under stress conditions in response to aluminum (Al), a metal known to limit agricultural productivity in acidic soils primarily due to reduced root elongation. In Brazil, the Grancam 1277 hybrid (E. grandis × E. camaldulensis) has been planted in the "Cerrado", a region of the country with a wide occurrence of acidic soils. The present study demonstrated that the hybrid exhibited root growth reduction and increased levels of lipid peroxidation after 24h of treatment with 100 µM of Al, which was followed by a reduction in lipid peroxidation levels and the recovery of root elongation after 48h of Al exposure, suggesting a rapid response to the early... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aluminum; Eucalypt; Lipid peroxidation; Oxidative stress; Root growth. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000201063 |
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| Bressan,Wellington. |
| The effects of P and N amendment and its interactions on spore germination, root growth and colonized root length by Glomus etunicatum Becker & Gerdemann (INVAM S329) was studied "in vitro" in RiT - DNA transformed roots of Anthylis vulneraria sub sp. Sampaiana (Kidney vetch). Three N media concentrations (5, 10 and 50 mg/l) at P constant level (2 mg/l) and three P media concentrations (2, 10 and 20 mg/l) at N constant level (5 mg/l) were utilized as a treatment. Bécard & Fortin medium was used as a basal medium for root growth and colonized root length, and water/agar (0.8%) media was the control for spore germination. Spore germination of G. etunicatum at low P level was reduced by N addition in relation to the control media, and at low N... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycorrhiza; Glomus etunicatum; Spore germination; Root growth; Root colonization. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000400004 |
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| Munguía-Rodríguez,Aarón Giovanni; López-Bucio,Jesús Salvador; Ruiz-Herrera,León Francisco; Ortiz-Castro,Randy; Guevara-García,Ángel Arturo; Marsch-Martínez,Nayelli; Carreón-Abud,Yazmín; López-Bucio,José; Martínez-Trujillo,Miguel. |
| Abstract Auxin regulates a plethora of events during plant growth and development, acting in concert with other phytohormones. YUCCA genes encode flavin monooxygenases that function in tryptophan-dependent auxin biosynthesis. To understand the contribution of the YUCCA4 (YUC4) gene on auxin homeostasis, plant growth and interaction with abscisic acid (ABA) signaling, 35S::YUC4 seedlings were generated, which showed elongated hypocotyls with hyponastic leaves and changes in root system architecture that correlate with enhanced auxin responsive gene expression. Differential expression of PIN1, 2, 3 and 7 auxin transporters was detected in roots of YUC4 overexpressing seedlings compared to the wild-type: PIN1 was down-regulated whereas PIN2, PIN3 and PIN7... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arabidopsis; Auxin; Abscisic acid; YUCCA4; Root growth; Germination. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100302 |
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| Registros recuperados: 26 | |
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