Matches in SemOpenAlex for { <https://semopenalex.org/work/W2912994365> ?p ?o ?g. }
- W2912994365 abstract "Oilseed rape (Brassica napus L.) is an oleoproteaginous crop characterized by low N use efficiency (NUE) that is mainly related to a weak Nitrogen Remobilization Efficiency (NRE) during the sequential leaf senescence of the vegetative stages. Based on the hypothesis that proteolysis efficiency is crucial for the improvement of leafNRE, our objective was to characterize key senescence-associated proteolytic mechanisms of two genotypes (Ténor and Samouraï) previously identified with contrasting NREs. To reach this goal, biochemical changes, protease activities and phytohormone patterns were studied in mature leaves undergoing senescence in two genotypes with contrasting NRE cultivated in a greenhouse under limiting or ample nitrate supply. The genotype with the higher NRE (Ténor) possessed enhanced senescence processes in response to nitrate limitation, and this led to greater degradation of soluble proteins compared to the other genotype (Samouraï). This efficient proteolysis is associated with (i) an increase in serine and cysteine protease (CP) activities and (ii) the appearance of new CP activities (RD21-like, SAG12-like, RD19-like, cathepsin-B, XBCP3-like and aleurain-like proteases) during senescence induced by N limitation. Compared to Samouraï, Ténor has a higher hormonal ratio ([salicylic acid] + [abscisic acid])/([cytokinins]) that promotes senescence, particularly under low N conditions, and this is correlated with the stronger protein degradation and serine/CP activities observed during senescence. Short statement: The improvement in N recycling during leaf senescence in a genotype of Brassica napus L. characterized by a high nitrogen remobilization efficiency is related to a high phytohormonal ratio ([salicylic acid] + [abscisic acid])/([cytokinins]) that promotes leaf senescence and is correlated with an increase or the induction of specific serine and cysteine protease activities." @default.
- W2912994365 created "2019-02-21" @default.
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- W2912994365 date "2019-02-04" @default.
- W2912994365 modified "2023-10-03" @default.
- W2912994365 title "A Genotypic Comparison Reveals That the Improvement in Nitrogen Remobilization Efficiency in Oilseed Rape Leaves Is Related to Specific Patterns of Senescence-Associated Protease Activities and Phytohormones" @default.
- W2912994365 cites W1505820433 @default.
- W2912994365 cites W1565799105 @default.
- W2912994365 cites W1595842211 @default.
- W2912994365 cites W1608044537 @default.
- W2912994365 cites W1834100906 @default.
- W2912994365 cites W1949572203 @default.
- W2912994365 cites W1963881875 @default.
- W2912994365 cites W1972564399 @default.
- W2912994365 cites W1974797789 @default.
- W2912994365 cites W1978378037 @default.
- W2912994365 cites W1980435972 @default.
- W2912994365 cites W1984032236 @default.
- W2912994365 cites W1988142523 @default.
- W2912994365 cites W1990076513 @default.
- W2912994365 cites W1991037487 @default.
- W2912994365 cites W1992835459 @default.
- W2912994365 cites W1994658078 @default.
- W2912994365 cites W2005794137 @default.
- W2912994365 cites W2015924345 @default.
- W2912994365 cites W2016529598 @default.
- W2912994365 cites W2018289835 @default.
- W2912994365 cites W2021175207 @default.
- W2912994365 cites W2024244802 @default.
- W2912994365 cites W2025879764 @default.
- W2912994365 cites W2040554454 @default.
- W2912994365 cites W2041942458 @default.
- W2912994365 cites W2043409652 @default.
- W2912994365 cites W2044853699 @default.
- W2912994365 cites W2052651440 @default.
- W2912994365 cites W2056649747 @default.
- W2912994365 cites W2057463066 @default.
- W2912994365 cites W2066652835 @default.
- W2912994365 cites W2066807957 @default.
- W2912994365 cites W2072411301 @default.
- W2912994365 cites W2075096636 @default.
- W2912994365 cites W2075342456 @default.
- W2912994365 cites W2084332647 @default.
- W2912994365 cites W2084546636 @default.
- W2912994365 cites W2088176572 @default.
- W2912994365 cites W2092923650 @default.
- W2912994365 cites W2098857235 @default.
- W2912994365 cites W2099134637 @default.
- W2912994365 cites W2099349137 @default.
- W2912994365 cites W2100837269 @default.
- W2912994365 cites W2102465841 @default.
- W2912994365 cites W2104968781 @default.
- W2912994365 cites W2105346934 @default.
- W2912994365 cites W2105658340 @default.
- W2912994365 cites W2110653202 @default.
- W2912994365 cites W2113408456 @default.
- W2912994365 cites W2114422765 @default.
- W2912994365 cites W2117336992 @default.
- W2912994365 cites W2117967152 @default.
- W2912994365 cites W2119652184 @default.
- W2912994365 cites W2123942875 @default.
- W2912994365 cites W2125072921 @default.
- W2912994365 cites W2125872808 @default.
- W2912994365 cites W2128635872 @default.
- W2912994365 cites W2129538655 @default.
- W2912994365 cites W2129563875 @default.
- W2912994365 cites W2130110385 @default.
- W2912994365 cites W2132146907 @default.
- W2912994365 cites W2133116586 @default.
- W2912994365 cites W2133607225 @default.
- W2912994365 cites W2133715602 @default.
- W2912994365 cites W2134267576 @default.
- W2912994365 cites W2135966070 @default.
- W2912994365 cites W2145493231 @default.
- W2912994365 cites W2150673409 @default.
- W2912994365 cites W2152044005 @default.
- W2912994365 cites W2165295937 @default.
- W2912994365 cites W2171614454 @default.
- W2912994365 cites W2198129741 @default.
- W2912994365 cites W2281179829 @default.
- W2912994365 cites W2316840484 @default.
- W2912994365 cites W2345347915 @default.
- W2912994365 cites W2498457897 @default.
- W2912994365 cites W2736527864 @default.
- W2912994365 cites W2766836720 @default.
- W2912994365 cites W2811411118 @default.
- W2912994365 cites W4247878281 @default.
- W2912994365 cites W4256121543 @default.
- W2912994365 cites W4293247451 @default.
- W2912994365 cites W982347801 @default.
- W2912994365 doi "https://doi.org/10.3389/fpls.2019.00046" @default.