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排序方式: 共有363条查询结果,搜索用时 125 毫秒
361.
Enza Lonardo Patrick C. Hermann Maria-Theresa Mueller Stephan Huber Anamaria Balic Irene Miranda-Lorenzo Sladjana Zagorac Sonia Alcala Iker Rodriguez-Arabaolaza Juan Carlos Ramirez Raul Torres-Ruíz Elena Garcia Manuel Hidaldo David Álvaro Cebrián Rainer Heuchel Matthias Löhr Frank Berger Peter Bartenstein Alexandra Aicher Christopher Heeschen 《Cell Stem Cell》2012,10(1):104
362.
Javier Buezo lvaro Sanz‐Saez Jose F. Moran David Soba Iker Aranjuelo Raquel Esteban 《Physiologia plantarum》2019,166(1):88-104
Soybean is a crop of agronomic importance that requires adequate watering during its growth to achieve high production. In this study, we determined physiological, photochemical and metabolic differences in five soybean varieties selected from the parental lines of a nested association mapping population during mild drought. These varieties have been described as high yielding (NE3001, HY1; LD01‐5907, HY2) or drought tolerant (PI518751; HYD1; PI398881, HYD2). Nevertheless, there has been little research on the physiological traits that sustain their high productivity under water‐limited conditions. The results indicate that high‐yielding varieties under drought cope with the shortage of water by enhancing their photoprotective defences and invest in growth and productivity, linked to a higher intrinsic water use efficiency. This is the case of the variety N‐3001 (HY1), with a tolerance strategy involving a faster transition into the reproductive stage to avoid the drought period. The present study highlights the role of the physiological and biochemical adjustments of various soybean varieties to cope with water‐limited conditions. Moreover, the obtained results underscore the fact that the high phenotypic plasticity among soybean phenotypes should be exploited to compensate for the low genetic variability of this species when selecting plant productivity in constrained environments. 相似文献
363.
María S. Almansa Luis A. del Río Carlos F. Alcaraz Francisca Sevilla 《Physiologia plantarum》1989,76(4):563-568
Superoxide dismutases (SOD; EC 1.15.1.1) in leaves from different cultivars of citrus plants were characterized using isoelectric focusing in polyacrylamide gels. The plants studied included Citrus limonum R. (cvs Verna, Fino, and Eureka), C. paradisi Mac (cvs Red Blush and Marsh), C. aurantium L. (cv. Comun), C. sinensis L. Osbeck (cvs Navel, Valencia, and Salustiano), and C. reticulata B. (cv. Satsuma). The three molecular forms of SOD were distinguished from each other by their different sensitivity to cyanide and H2 O2 . In C. limonum leaves, four Cu,Zn-SODs, three Fe-SODs and two Mn-SODs were present. However, in leaves from different varieties of C. sinensis, C. paradisi, C. aurantium and C. reticulata the activity and number of Fe-SOD isoenzymes were lower than in lemon leaves, whereas the number of MN-SOD isozymes was increased. Cu,Zn-SODs did not show significant variations in the different species and cultivars. The identification of Fe-SODs in several species of the plant family Rutaceae extends the small number of higher plants where the presence of these Fe-containing metalloenzymes has been demonstrated. Results obtained may be useful from an evolutionary viewpoint and also in mineral nutrition studies using SOD isozymes as markers of functional metals. 相似文献