| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:seeAlso
| |
| Description
| - The cultivated hop (Humulus lupulus L.) is normally grown in 5-8 m tall wirework to produce commercial yields of inflorescences known as cones. Relatively recently, dwarf hops have been developed in the United Kingdom, which have shorter internode lengths and are cultivated in low trellis systems. The aim of our study was to reveal possible differences in endogenous phytohormone contents between normal and dwarf hop genotypes during development in field conditions. Growth hormones (auxins, gibberellins, cytokinins) and stress hormones (abscisic acid, jasmonic acid, salicylic acid) were measured by LC-electrospray tandem-mass spectrometry in female plants of three normal (Saazer, Sladek, Admiral) and three dwarf (First Gold, Herald, 5021) cultivars. Various tested plant tissues (apex buds, young leaves, old leaves, inflorescences) markedly differed in the phytohormone levels, independently on hop genotypes. Enhanced levels of auxins and gibberellins (GA19, GA20, GA29) were detected in inflorescences suggesting these classes of hormones might be involved in flowering, maturating and generative growth of plants. As for cytokinins, cis-zeatin types were found to occur in considerably higher amounts in dwarf cultivars compared to normal ones. The statistically significant difference between dwarf and normal hop plants was revealed for cis-zeatin-9-riboside-O-glucoside exhibiting enhanced levels in all tested tissues of dwarf cultivars. Similarly, concentrations of another cytokinin storage form, cis-zeatin-O-glucoside, exceeded in all tissues of dwarf genotypes (except for young leaves) those in normal hop plants. Slightly higher levels of abscisic acid were detected in apex buds of normal cultivars while considerably enhanced levels of salicylic acid occurred in apex buds and young leaves of dwarf cultivars.
- The cultivated hop (Humulus lupulus L.) is normally grown in 5-8 m tall wirework to produce commercial yields of inflorescences known as cones. Relatively recently, dwarf hops have been developed in the United Kingdom, which have shorter internode lengths and are cultivated in low trellis systems. The aim of our study was to reveal possible differences in endogenous phytohormone contents between normal and dwarf hop genotypes during development in field conditions. Growth hormones (auxins, gibberellins, cytokinins) and stress hormones (abscisic acid, jasmonic acid, salicylic acid) were measured by LC-electrospray tandem-mass spectrometry in female plants of three normal (Saazer, Sladek, Admiral) and three dwarf (First Gold, Herald, 5021) cultivars. Various tested plant tissues (apex buds, young leaves, old leaves, inflorescences) markedly differed in the phytohormone levels, independently on hop genotypes. Enhanced levels of auxins and gibberellins (GA19, GA20, GA29) were detected in inflorescences suggesting these classes of hormones might be involved in flowering, maturating and generative growth of plants. As for cytokinins, cis-zeatin types were found to occur in considerably higher amounts in dwarf cultivars compared to normal ones. The statistically significant difference between dwarf and normal hop plants was revealed for cis-zeatin-9-riboside-O-glucoside exhibiting enhanced levels in all tested tissues of dwarf cultivars. Similarly, concentrations of another cytokinin storage form, cis-zeatin-O-glucoside, exceeded in all tissues of dwarf genotypes (except for young leaves) those in normal hop plants. Slightly higher levels of abscisic acid were detected in apex buds of normal cultivars while considerably enhanced levels of salicylic acid occurred in apex buds and young leaves of dwarf cultivars. (en)
|
| Title
| - Endogenous phytohormone levels in dwarf and normal hop (Humulus lupulus L.) plants
- Endogenous phytohormone levels in dwarf and normal hop (Humulus lupulus L.) plants (en)
|
| skos:prefLabel
| - Endogenous phytohormone levels in dwarf and normal hop (Humulus lupulus L.) plants
- Endogenous phytohormone levels in dwarf and normal hop (Humulus lupulus L.) plants (en)
|
| skos:notation
| - RIV/14864347:_____/13:#0000502!RIV14-MSM-14864347
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/14864347:_____/13:#0000502
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - hop (Humulus lupulus); phytohormones (auxin, cytokinin, gibberellin); stress hormones (abscisic acid, jasmonic acid, salicylic acid) (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...v/mistoKonaniAkce
| |
| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Motyka, Václav
- Patzak, Josef
- Dobrev, Petr I.
|
| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| issn
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - International Society for Horticultural Science (ISHS)
|
| https://schema.org/isbn
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)