豆类和棉花中钠的吸收与转移。
Absorption and translocation of sodium in beans and cotton.
机构信息
United States Salinity Laboratory, ARS, United States Department of Agriculture, Riverside, California.
出版信息
Plant Physiol. 1967 Sep;42(9):1171-5. doi: 10.1104/pp.42.9.1171.
At the end of a 4 hour absorption period approximately 95% of the sodium absorbed by bean plants was retained in the secondary roots. The sodium translocated to the shoot was retained in the stem.2,4-Dinitrophenol decreased the amount retained in the secondary roots of bean plants and increased the amount translocated to the shoot. The stem retained most of the translocated sodium.Bean plants without roots absorbed considerably more sodium than plants with roots and translocated a greater proportion of the sodium to the petioles and blades. 2,4-Dinitrophenol reduced the amount of sodium in the stem and petioles and increased the amount in the blades.2,4-Dinitrophenol reduced the amount of sodium retained by the secondary roots of cotton plants but did not appreciably affect the amounts translocated to the shoot.
在 4 小时的吸收期结束时，被豆科植物吸收的钠约有 95%保留在次生根中。转运到地上部分的钠则被保留在茎中。2,4-二硝基苯酚减少了豆科植物次生根中保留的钠量，并增加了转运到地上部分的钠量。茎保留了大部分转运的钠。没有根的豆科植物吸收的钠比有根的植物多得多，而且将更大比例的钠转运到叶柄和叶片中。2,4-二硝基苯酚减少了茎和叶柄中的钠含量，并增加了叶片中的钠含量。2,4-二硝基苯酚减少了棉花植株次生根中保留的钠量，但对转运到地上部分的量没有显著影响。
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