EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Identification of the forms of boron in seaweed by 11B NMR


Phytochemistry (Oxford) 46(2): 209-213
Identification of the forms of boron in seaweed by 11B NMR
Free and complex forms of accumulated borate in seaweeds were identified by 11B NMR. The NMR spectra of green and red algae showed boric acid peaks mainly. In contrast, brown algae gave two distinctive peaks predominantly containing borate diesters. To identify the moiety coupled to borate, borate complexes with compounds containing vicinal hydroxy groups, such as mannitol, laminarin and alginic acid, were prepared and examined. The results strongly indicated that mannitol formed the main diester complexes. The signal of the complexes was decreased rapidly after storage. Fresh brown algae, therefore, contain large amounts of B-carbohydrate complexes as do higher plants.

(PDF 0-2 workdays service: $29.90)

Accession: 002863861



Related references

Boron toxicity, boron uptake and boron distribution in young cucumber plants under the influence of various forms of nitrogen. Plant and Soil 39(2): 277-283, 1973

Effects of boron-magnesium on boron forms in rape cultivars with different boron efficiency at the seedling stage. Plant Nutrition and Fertilizer Science 10(6): 633-637, 2004

Effects of soil moisture and boron supply on the plant growth and leaf water content and boron forms of oilseed rape cultivars with different boron use efficiency at their seedling stage. Ying Yong Sheng Tai Xue Bao 18(11): 2487-2490, 2008

Effects of soil moisture and boron supply on the plant growth and leaf water content and boron forms of oilseed rape cultivars with different boron use efficiency at their seedling stage. Yingyong Shengtai Xuebao 18(11): 2487-2490, 2007

Behavior of soil boron and boron uptake by M.26 apple rootstock as affected by application of different forms and nitrogen rates. Journal of Plant Nutrition 23(9): 1227-1239, 2000

Relationship between boron deficiency occurrence and changes in contents of different boron forms in leaves of Newhall navel orange during fruit development. 2007

Hydroxyl-forms of p-boronophenylalanine as potential boron carriers in boron neutron capture therapy for malignant brain tumors A case study of its pharmacokinetics on a GBM patient. Larsson, B , Crawford, J , Weinreich, R International Congress Series; Advances in neutron capture therapy, Vol II, chemistry and biology 243-248, 1997

Identification of a novel system for boron transport: Atr1 is a main boron exporter in yeast. Molecular and Cellular Biology 29(13): 3665-3674, 2009

Identification of boron transporter genes likely to be responsible for tolerance to boron toxicity in wheat and barley. Plant & Cell Physiology 48(12): 1673-1678, 2007

Identification of a boron-containing intermediate in the boron tribromide mediated aryl propargyl ether cleavage reaction. Journal of Organic Chemistry 74(3): 1385-1387, 2009