Reference

Soluble carbohydrates in legumes and nodulated nonlegumes

Soluble carbohydrates in legumes and nodulated nonlegumes. Phillips, Daniel V.; Wilson, David O.; Dougherty, David E. (Dep. Plant Pathol., Georgia Exp. Stn., Experiment, GA 30212, USA). J. Agric. Food Chem., 32(6), 1289-91 (English) 1984. CODEN: JAFCAU. ISSN: 0021-8561. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) The sol. carbohydrates in leguminous and nodulated nonleguminous plants were compared to det. if there were differences or similarities that might relate to the ability of microsymbionts to fix N. Gas chromatog. of the trimethylsilyl derivs. was used to quantitate the 80% EtOH-sol. carbohydrates and the identities of component peaks were verified by mass spectrometry. The sugars glucose [50-99-7], fructose [57-48-7], and sucrose [57-50-1] and the cyclitols myo-inositol [87-89-8] and chiro-inositol [643-12-9] were present in varying quantities in all tissues of all species. Trehalose [99-20-7] was present only in nodules of all species. Pinitol (1D-3-O-methyl-chiro-inositol) [10284-63-6] was a major component in all legumes but was not detected in the nodulated nonlegumes. (-)-Viburnitol (1L-1,2,4/3,5-cyclohexanepentol) [488-76-6] was a major component in the nodulated nonlegumes but was not detected in the legumes.

Ion distribution and pattern of chemical constituents in leaves of salt-affected roadside trees in Vienna

Ion distribution and pattern of chemical constituents in leaves of salt-affected roadside trees in Vienna. II. Nitrogen and soluble carbohydrates. Trockner, Verena; Albert, Roland (Inst. Pflanzenphysiol., Univ. Wien, Vienna A-1090, Austria). Flora (Jena), 178(6), 391-408 (German) 1986. 62076-18-0 and 7727-37-9 are cas registry numbers. These chemicals are also mentioned in this article. CODEN: FLRABG. ISSN: 0367-2530. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) Section cross-reference(s): 11 In the leaves of healthy and salt-damaged roadside trees of 13 different species within the urban environment of Vienna, the contents of total N, free amino acids, and sol. carbohydrates were measured. The N content of injured leaves of great, Norway, and ash-leaved maples, linden, cherry, locust, walnut, and ash was lower than the corresponding values in healthy leaves; those of birch, chestnut, and plane tree were above normal , whereas the contents in hackberry and oak remained unchanged. The lower levels of total N are probably the result of a restricted N uptake from highly salt-affected urban soils. However, in all species investigated, variations within the pool of free amino acids occurred:. Generally, in salt-damaged leaves, the amts. of the main amino acid compds. (GABA [56-12-2], aspartic acid [56-84-8], alanine [56-41-7], asparagine [70-47-3]) decreased, while the contents of glutamic acid [56-86-0], glutamine [56-85-9], serine [56-45-1], and cysteine [52-90-4] increased. Within the pattern of sol. carbohydrates, the sugar compds. exhibited no obvious alterations with increasing salt stress. In some trees, the accumulation of species-typical cyclitols (pinitol [10284-63-6] in plane tree, sorbitol [50-70-4] in cherry, scyllo-inositol [488-59-5] in hackberry, dulcitol [608-66-2] in ash, quercitol [62076-18-0] in oak) contributed to the total osmotic potential, which is mainly built up by high electrolyte levels. Variations of N and carbohydrate metab. are discussed with respect to the specific salt tolerance of different species, and with respect to the addnl. water stress situation on roadside habitats. .