Indole-3-acetic acid Dotaz Zobrazit nápovědu
A number of scientific reports published to date contain data on endogenous levels of various phytohormones in potato (Solanum tuberosum L.) but a complete cytokinin profile of potato tissues, that would include data on all particular molecular forms of cytokinin, has still been missing. In this work, endogenous levels of all analytically detectable isoprenoid cytokinins, as well as the auxin indole-3-acetic acid (IAA), and abscisic acid (ABA) have been determined in shoots and roots of 30 day old in vitro grown potato (cv. Désirée). The results presented here are generally similar to other data reported for in vitro grown potato plants, whereas greenhouse-grown plants typically contain lower levels of ABA, possibly indicating that in vitro grown potato is exposed to chronic stress. Cytokinin N-glucosides, particularly N7-glucosides, are the dominant cytokinin forms in both shoots and roots of potato, whereas nucleobases, as the bioactive forms of cytokinins, comprise a low proportion of cytokinin levels in tissues of potato. Differences in phytohormone composition between shoots and roots of potato suggest specific patterns of transport and/or differences in tissue-specific metabolism of plant hormones. These results represent a contribution to understanding the hormonomics of potato, a crop species of extraordinary economic importance.
- MeSH
- cytokininy analýza metabolismus MeSH
- fyziologický stres MeSH
- kořeny rostlin metabolismus MeSH
- kyselina abscisová analýza metabolismus MeSH
- kyseliny indoloctové analýza metabolismus MeSH
- regulátory růstu rostlin analýza metabolismus MeSH
- Solanum tuberosum růst a vývoj metabolismus MeSH
- tandemová hmotnostní spektrometrie MeSH
- výhonky rostlin metabolismus MeSH
- vysokoúčinná kapalinová chromatografie MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Plants form associations with different microbes; some promote their growth and protect from biotic and abiotic stresses in different ways. However, the biological role of fungi associated with the rhizosphere of medicinal plants is not well explored. In the present study, Colletotrichum gloeosporioides, and Aspergillus fumigatus isolated from the rhizosphere of Dillenia indica were screened for their phosphate solubilization and indole-3-acetic acid (IAA) production potential. The selected fungal strains were identified by macroscopic, microscopic, and molecular characteristics. Phosphate solubilization was qualitatively and quantitatively evaluated using Pikovskaya's (PVK) agar and PVK broth medium using different substrates such as AlPO4, Ca3(PO4)2, and FePO4. Colletotrichum gloeosporioides and Aspergillus fumigatus with respect to the phosphate source showed solubilization index (SI) of 1.7 ± 0.03 and 2.1 ± 0.04, and solubilized phosphate up to 138.8 ± 0.058 μg/mL and 121.6 ± 0.062 μg/mL. These fungal strains are also good producers of IAA and significantly enhance the growth of Vigna radiata and Cicer arietinum seedlings. This is the first report on A. fumigatus and C. gloeosporioides from the rhizosphere of Dillenia indica and their phosphate solubilization and IAA production ability.
- Klíčová slova
- PENTASA,
- MeSH
- Crohnova nemoc farmakoterapie moč MeSH
- falešně pozitivní reakce MeSH
- kyselina hydroxyindoloctová moč MeSH
- kyseliny aminosalicylové farmakokinetika moč terapeutické užití MeSH
- lidé MeSH
- vysokoúčinná kapalinová chromatografie metody statistika a číselné údaje MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- srovnávací studie MeSH
Indolylacryloylglycine (IAcrGly) is a regular constituent of human urine. Changes in its excretion have been observed, among other conditions, in some skin diseases. Skin lesions in burns are dealt with in the present paper. IAcrGly excretion has been followed during several weeks of hospital treatment and compared with that of two other tryptophan metabolites, namely indolylacetic acid (IAA) and 5-hydroxyindolylacetic acid (5-HIAA). The average excretion of IAcrGly was significantly lower especially between day 3 and 15 post injury. Some alternative explanations of these results are put forward.
- MeSH
- dospělí MeSH
- glycin analogy a deriváty moč MeSH
- kyselina hydroxyindoloctová moč MeSH
- kyseliny indoloctové moč MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- popálení moč MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Klíčová slova
- PENTASA, ASACOL, IMURAN,
- MeSH
- Crohnova nemoc farmakoterapie komplikace MeSH
- dospělí MeSH
- falešně pozitivní reakce MeSH
- karcinoid diagnóza komplikace MeSH
- kyselina hydroxyindoloctová diagnostické užití moč MeSH
- kyseliny aminosalicylové farmakokinetika moč terapeutické užití MeSH
- lidé středního věku MeSH
- lidé MeSH
- prednison MeSH
- vysokoúčinná kapalinová chromatografie metody statistika a číselné údaje MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- srovnávací studie MeSH
