WFRF:(Sommarin Marianne)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03840naa a2200361 4500 | |
| 001 | oai:lup.lub.lu.se:acfee8eb-b834-4581-a2e8-775011bc6e8a | |
| 003 | SwePub | |
| 008 | 160401s2001 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://lup.lub.lu.se/record/1087302 URI |
| 024 | 7 | a https://doi.org/10.1034/j.1399-3054.2001.1130310.x2 DOI |
| 040 | a (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Wallstedt, Anna4 aut |
| 245 | 1 0 | a The inhibition of ammonium uptake in excised birch (Betula pendula) roots by batatasin-III. |
| 264 | c 2008-07-07 | |
| 264 | 1 | b Wiley,c 2001 |
| 520 | a In northern Sweden, plants growing in association with the clonal dwarf shrub Empetrum hermaphroditum usually exhibit limited growth and are N-depleted. Previous studies suggest that this negative effect by E. hermaphroditum may be explained, at least in part, by the release of phenolic compounds, particularly the dihydrostilbene, batatasin-III from foliage to soil. In the present work, we investigated whether batatasin-III has the potential to interfere with NH4+ uptake in birch (Betula pendula) roots. Excised birch roots were exposed to batatasin-III during brief periods in 15NH4+ solutions, and then analyzed for labeled N. Batatasin-III inhibited N-NH4+ uptake by 28, 89 and 95% compared with the control, when roots were treated with 0.1, 1.0 and 2.8 mM of batatasin-III, respectively. The effect of 1.0-mM batatasin-III was greater at pH 4.2 than at pH 6.8. In addition, the inhibition of N-NH4+ uptake by batatasin-III was not reversed after rinsing the roots in water and transferring them to a batatasin-III free solution. Furthermore, birch seedlings immersed in a 1.0-mM batatasin-III solution for 2 h, and then replanted in pots with soil, had decreased growth, such that 10 weeks after treatment, the dry mass of both shoots and roots was reduced by 74 and 73%, respectively, compared with control seedlings. This suggests that a brief exposure to batatasin-III may have a long-term inhibitory effect on whole plant growth. Using plasma membrane vesicles isolated from easily extractable spinach (Spinacia oleracea) leaves, it was found that batatasin-III strongly inhibited proton pumping in isolated plasma membrane vesicles, while it only slightly inhibited ATP hydrolytic activity. The uncoupling of proton pumping from ATP hydrolytic activity suggests that batatasin-III disturbs membrane integrity. This hypothesis was further supported by a greater efflux of ions from birch roots immersed in a batatasin-III solution than from roots in a control solution. | |
| 650 | 7 | a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Biologix Ekologi0 (SwePub)106112 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Ecology0 (SwePub)106112 hsv//eng |
| 700 | 1 | a Sommarin, Marianneu Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)pbio-mso |
| 700 | 1 | a Nilsson, Marie-Charlotte4 aut |
| 700 | 1 | a Munson, Alison D.4 aut |
| 700 | 1 | a Margolis, Hank A.4 aut |
| 710 | 2 | a Biokemi och Strukturbiologib Centrum för Molekylär Proteinvetenskap4 org |
| 773 | 0 | t Physiologia Plantarumd : Wileyg 113:3, s. 368-376q 113:3<368-376x 0031-9317 |
| 856 | 4 | u http://dx.doi.org/10.1034/j.1399-3054.2001.1130310.xy FULLTEXT |
| 856 | 4 8 | u https://lup.lub.lu.se/record/108730 |
| 856 | 4 8 | u https://doi.org/10.1034/j.1399-3054.2001.1130310.x |
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