CHANGES IN THE AMIDE AND AMINO-ACID-COMPOSITION OF XYLEM EXUDATE FROM PERENNIAL RYEGRASS (LOLIUM-PERENNE L) DURING REGROWTH AFTER DEFOLIATION

被引：14

作者：

BIGOT, J ^{[1
]}

LEFEVRE, J ^{[1
]}

BOUCAUD, J ^{[1
]}

机构：

[1] UNIV CAEN,INST RECH BIOL APPL,PHYSIOL & BIOCHIM VEGETALES LAB,F-14032 CAEN,FRANCE

来源：

PLANT AND SOIL | 1991年 / 136卷 / 01期

关键词：

ASPARAGINE; FREE-AMINO ACIDS; GLUTAMINE; LOLIUM-PERENNE L; REGROWTH; XYLEM SAP EXUDATION;

D O I：

10.1007/BF02465220

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The paper presents the results of amino acid analyses in xylem sap during leaf regrowth of ryegrass plants defoliated firstly at the 8th and secondly at the 12th week of culture. The free amino acid composition of leaves, stubble and roots was also determined and some of the results are reported. Prior to defoliation, xylem sap contained a high proportion of amides, particularly glutamine. During regrowth after defoliation, the proportion of asparagine in the xylem sap increased until the third day when the highest ratios of asparagine/glutamine appeared. The results are compared with relative amounts of free amino acids in the different plant parts and discussed in relation to source-sink nitrogen transfer.

引用

页码：59 / 64

页数：6

共 45 条

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[22] USE OF DISC ELECTROPHORESIS TO EVALUATE PROTEIN CHANGES ACCOMPANYING EXPOSURE OF PERENNIAL RYEGRASS (LOLIUM-PERENNE L) TO COLD HARDENING CONDITIONS
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[23] The effect of grazing severity and fertiliser application during winter on herbage regrowth and quality of perennial ryegrass (Lolium perenne L.)
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[26] Cell growth analysis during steady and non-steady growth in leaves of perennial ryegrass (Lolium perenne L.) subject to defoliation
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[27] Continuous defoliation of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) and associated changes in the composition and activity of the microbial population of an upland grassland soil
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[28] Continuous defoliation of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) and associated changes in the composition and activity of the microbial population of an upland grassland soil
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[29] Impact of the extraction method on the composition and solubility of leaf protein concentrates from perennial ryegrass (Lolium perenne L.)
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FOOD HYDROCOLLOIDS, 2024, 147
[30] SEASONAL-CHANGES IN THE PHYSIOLOGY OF S24 PERENNIAL RYEGRASS (LOLIUM-PERENNE L) .1. RESPONSE OF LEAF EXTENSION TO TEMPERATURE DURING THE TRANSITION FROM VEGETATIVE TO REPRODUCTIVE GROWTH
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