Nitric oxide effect on root architecture development in Malus seedlings

The time-dependent production of nitric oxide (NO) in roots induced by indole-3-butyric acid (IBA) and the effect of sodium nitroprusside (SNP) on root architecture development were investigated, using Malus hupehensis Rehd. seedlings. Following IBA application, a very rapid increase in NO formation...

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Main Authors: H.J. Gao, H.Q. Yang
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2011-09-01
Series:Plant, Soil and Environment
Subjects:
Online Access:https://pse.agriculturejournals.cz/artkey/pse-201109-0003_nitric-oxide-effect-on-root-architecture-development-in-malus-seedlings.php
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author H.J. Gao
H.Q. Yang
author_facet H.J. Gao
H.Q. Yang
author_sort H.J. Gao
collection DOAJ
description The time-dependent production of nitric oxide (NO) in roots induced by indole-3-butyric acid (IBA) and the effect of sodium nitroprusside (SNP) on root architecture development were investigated, using Malus hupehensis Rehd. seedlings. Following IBA application, a very rapid increase in NO formation and a subsequent second wave of NO burst was observed, which was related to the induction of lateral roots (LRs) and the organogenesis of lateral root primordia (LRP), respectively. The first NO burst was correlated with the second and the two peaks of NO burst induced by IBA were totally abolished by 3,3',4',5,7-pentahydroxyflavone (quercetin). Exogenous NO promoted the emergence and elongation of LR and inhibited the elongation of primary root (PR) in a dose-dependent manner: low concentrations of SNP promoted both the amounts and the elongation of LR but inhibited the elongation of LR and PR at higher concentrations. It was concluded that (i) the rapid production of NO induced by IBA was correlated with the IBA-induced initiation of LR; (ii) quercetin inhibition of IBA-induced LR formation was correlated with the quercetin inhibition of IBA-induced NO biosynthesis, and (iii) exogenous NO affects the development of root system architecture in a dose-dependent manner.
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spelling doaj.art-0a3f7046741646d3b643b2c430c76e232023-02-23T03:45:45ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682011-09-0157941842210.17221/209/2011-PSEpse-201109-0003Nitric oxide effect on root architecture development in Malus seedlingsH.J. Gao0H.Q. Yang1Shandong Institute of Pomology, Taian, P.R. ChinaCollege of Horticultural Science and Engineering, Shandong Agricultural University, Taian, P.R. ChinaThe time-dependent production of nitric oxide (NO) in roots induced by indole-3-butyric acid (IBA) and the effect of sodium nitroprusside (SNP) on root architecture development were investigated, using Malus hupehensis Rehd. seedlings. Following IBA application, a very rapid increase in NO formation and a subsequent second wave of NO burst was observed, which was related to the induction of lateral roots (LRs) and the organogenesis of lateral root primordia (LRP), respectively. The first NO burst was correlated with the second and the two peaks of NO burst induced by IBA were totally abolished by 3,3',4',5,7-pentahydroxyflavone (quercetin). Exogenous NO promoted the emergence and elongation of LR and inhibited the elongation of primary root (PR) in a dose-dependent manner: low concentrations of SNP promoted both the amounts and the elongation of LR but inhibited the elongation of LR and PR at higher concentrations. It was concluded that (i) the rapid production of NO induced by IBA was correlated with the IBA-induced initiation of LR; (ii) quercetin inhibition of IBA-induced LR formation was correlated with the quercetin inhibition of IBA-induced NO biosynthesis, and (iii) exogenous NO affects the development of root system architecture in a dose-dependent manner.https://pse.agriculturejournals.cz/artkey/pse-201109-0003_nitric-oxide-effect-on-root-architecture-development-in-malus-seedlings.phpindole-3-butyric acidquercetinrootsodium nitroprusside
spellingShingle H.J. Gao
H.Q. Yang
Nitric oxide effect on root architecture development in Malus seedlings
Plant, Soil and Environment
indole-3-butyric acid
quercetin
root
sodium nitroprusside
title Nitric oxide effect on root architecture development in Malus seedlings
title_full Nitric oxide effect on root architecture development in Malus seedlings
title_fullStr Nitric oxide effect on root architecture development in Malus seedlings
title_full_unstemmed Nitric oxide effect on root architecture development in Malus seedlings
title_short Nitric oxide effect on root architecture development in Malus seedlings
title_sort nitric oxide effect on root architecture development in malus seedlings
topic indole-3-butyric acid
quercetin
root
sodium nitroprusside
url https://pse.agriculturejournals.cz/artkey/pse-201109-0003_nitric-oxide-effect-on-root-architecture-development-in-malus-seedlings.php
work_keys_str_mv AT hjgao nitricoxideeffectonrootarchitecturedevelopmentinmalusseedlings
AT hqyang nitricoxideeffectonrootarchitecturedevelopmentinmalusseedlings