Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids

Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids

Nitrogen availability in Buglossoides arvensis mother plants influences seed dormancy level. Abscisic acid (ABA) levels chiefly determine primary dormancy during embryo maturation and its maintenance depends on ABA/gibberellic acid (GA) balance. We hypothesised that soil nitrogen fertilisation of B. arvensis mother plants affects seed sensitivity to hormonal germination promotors and inhibitors. The purpose of the present work was therefore to investigate to what extent the changes that occur in seed germinability as a result of maternal nitrogen fertilisation (with -N(+)- and without -N(−)-) are paralleled by changes in ABA or GAs de novo synthesis and embryonic sensitivity to ABA or GAs. Seed germinability was assessed under a gradient of ABA and GA3 and their corresponding de novo synthesis inhibitors (fluridone -FLU- and paclobutrazol -PBZ-). B. arvensis seeds were incubated at suboptimal (7°C), optimal (15°C) and supraoptimal (20°C) temperatures. Results indicated a higher germination of N(+) seeds, irrespective of hormone type, dose or incubation temperature. N(−) seeds were more sensitive to FLU at 7°C and to GA3 at 15°C, whereas N(+) seeds were more sensitive to FLU at 15-20°C and to PBZ at 7°C. At 20°C, N(+) seed germinability was stimulated by GA3 bounteracting the thermo-inhibitory effect. The higher seed germinability recorded from nitrogen-fertilised plants could be associated to a decrease in seed dormancy levels due to lower ABA levels during embryogenesis, thus requiring a lower amount of GAs to germinate. Further studies are required to confirm this hypothesis.

Saved in:
Bibliographic Details
Main Authors: Longás, María de las Mercedes, Sabbatini, Mario Ricardo, Batlla, Diego, Chantre, Guillermo Rubén
Format: Texto biblioteca
Language:eng
Subjects:FLURIDONE, LITHOSPERMUM ARVENSE L., MATERNAL EFFECT, NITROGEN FERTILIZATION, PACLOBUTRAZO, SEED DORMANCY, SEMIARID REGION, ,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54862
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
Tags: Add Tag
No Tags, Be the first to tag this record!
id KOHA-OAI-AGRO:54862
record_format koha
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic FLURIDONE
LITHOSPERMUM ARVENSE L.
MATERNAL EFFECT
NITROGEN FERTILIZATION
PACLOBUTRAZO
SEED DORMANCY
SEMIARID REGION

FLURIDONE
LITHOSPERMUM ARVENSE L.
MATERNAL EFFECT
NITROGEN FERTILIZATION
PACLOBUTRAZO
SEED DORMANCY
SEMIARID REGION
spellingShingle FLURIDONE
LITHOSPERMUM ARVENSE L.
MATERNAL EFFECT
NITROGEN FERTILIZATION
PACLOBUTRAZO
SEED DORMANCY
SEMIARID REGION

FLURIDONE
LITHOSPERMUM ARVENSE L.
MATERNAL EFFECT
NITROGEN FERTILIZATION
PACLOBUTRAZO
SEED DORMANCY
SEMIARID REGION
Longás, María de las Mercedes
Sabbatini, Mario Ricardo
Batlla, Diego
Chantre, Guillermo Rubén
Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids
description Nitrogen availability in Buglossoides arvensis mother plants influences seed dormancy level. Abscisic acid (ABA) levels chiefly determine primary dormancy during embryo maturation and its maintenance depends on ABA/gibberellic acid (GA) balance. We hypothesised that soil nitrogen fertilisation of B. arvensis mother plants affects seed sensitivity to hormonal germination promotors and inhibitors. The purpose of the present work was therefore to investigate to what extent the changes that occur in seed germinability as a result of maternal nitrogen fertilisation (with -N(+)- and without -N(−)-) are paralleled by changes in ABA or GAs de novo synthesis and embryonic sensitivity to ABA or GAs. Seed germinability was assessed under a gradient of ABA and GA3 and their corresponding de novo synthesis inhibitors (fluridone -FLU- and paclobutrazol -PBZ-). B. arvensis seeds were incubated at suboptimal (7°C), optimal (15°C) and supraoptimal (20°C) temperatures. Results indicated a higher germination of N(+) seeds, irrespective of hormone type, dose or incubation temperature. N(−) seeds were more sensitive to FLU at 7°C and to GA3 at 15°C, whereas N(+) seeds were more sensitive to FLU at 15-20°C and to PBZ at 7°C. At 20°C, N(+) seed germinability was stimulated by GA3 bounteracting the thermo-inhibitory effect. The higher seed germinability recorded from nitrogen-fertilised plants could be associated to a decrease in seed dormancy levels due to lower ABA levels during embryogenesis, thus requiring a lower amount of GAs to germinate. Further studies are required to confirm this hypothesis.
format Texto
topic_facet
FLURIDONE
LITHOSPERMUM ARVENSE L.
MATERNAL EFFECT
NITROGEN FERTILIZATION
PACLOBUTRAZO
SEED DORMANCY
SEMIARID REGION
author Longás, María de las Mercedes
Sabbatini, Mario Ricardo
Batlla, Diego
Chantre, Guillermo Rubén
author_facet Longás, María de las Mercedes
Sabbatini, Mario Ricardo
Batlla, Diego
Chantre, Guillermo Rubén
author_sort Longás, María de las Mercedes
title Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids
title_short Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids
title_full Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids
title_fullStr Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids
title_full_unstemmed Effect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acids
title_sort effect of contrasting maternal nitrogen environments on buglossoides arvensis seed germination response to gibberellic and abscisic acids
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54862
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
work_keys_str_mv AT longasmariadelasmercedes effectofcontrastingmaternalnitrogenenvironmentsonbuglossoidesarvensisseedgerminationresponsetogibberellicandabscisicacids
AT sabbatinimarioricardo effectofcontrastingmaternalnitrogenenvironmentsonbuglossoidesarvensisseedgerminationresponsetogibberellicandabscisicacids
AT batlladiego effectofcontrastingmaternalnitrogenenvironmentsonbuglossoidesarvensisseedgerminationresponsetogibberellicandabscisicacids
AT chantreguillermoruben effectofcontrastingmaternalnitrogenenvironmentsonbuglossoidesarvensisseedgerminationresponsetogibberellicandabscisicacids
_version_ 1781851475959349248
spelling KOHA-OAI-AGRO:548622023-09-20T10:52:18Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54862http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGEffect of contrasting maternal nitrogen environments on Buglossoides arvensis seed germination response to gibberellic and abscisic acidsLongás, María de las MercedesSabbatini, Mario RicardoBatlla, DiegoChantre, Guillermo Rubéntextengapplication/pdfNitrogen availability in Buglossoides arvensis mother plants influences seed dormancy level. Abscisic acid (ABA) levels chiefly determine primary dormancy during embryo maturation and its maintenance depends on ABA/gibberellic acid (GA) balance. We hypothesised that soil nitrogen fertilisation of B. arvensis mother plants affects seed sensitivity to hormonal germination promotors and inhibitors. The purpose of the present work was therefore to investigate to what extent the changes that occur in seed germinability as a result of maternal nitrogen fertilisation (with -N(+)- and without -N(−)-) are paralleled by changes in ABA or GAs de novo synthesis and embryonic sensitivity to ABA or GAs. Seed germinability was assessed under a gradient of ABA and GA3 and their corresponding de novo synthesis inhibitors (fluridone -FLU- and paclobutrazol -PBZ-). B. arvensis seeds were incubated at suboptimal (7°C), optimal (15°C) and supraoptimal (20°C) temperatures. Results indicated a higher germination of N(+) seeds, irrespective of hormone type, dose or incubation temperature. N(−) seeds were more sensitive to FLU at 7°C and to GA3 at 15°C, whereas N(+) seeds were more sensitive to FLU at 15-20°C and to PBZ at 7°C. At 20°C, N(+) seed germinability was stimulated by GA3 bounteracting the thermo-inhibitory effect. The higher seed germinability recorded from nitrogen-fertilised plants could be associated to a decrease in seed dormancy levels due to lower ABA levels during embryogenesis, thus requiring a lower amount of GAs to germinate. Further studies are required to confirm this hypothesis.Nitrogen availability in Buglossoides arvensis mother plants influences seed dormancy level. Abscisic acid (ABA) levels chiefly determine primary dormancy during embryo maturation and its maintenance depends on ABA/gibberellic acid (GA) balance. We hypothesised that soil nitrogen fertilisation of B. arvensis mother plants affects seed sensitivity to hormonal germination promotors and inhibitors. The purpose of the present work was therefore to investigate to what extent the changes that occur in seed germinability as a result of maternal nitrogen fertilisation (with -N(+)- and without -N(−)-) are paralleled by changes in ABA or GAs de novo synthesis and embryonic sensitivity to ABA or GAs. Seed germinability was assessed under a gradient of ABA and GA3 and their corresponding de novo synthesis inhibitors (fluridone -FLU- and paclobutrazol -PBZ-). B. arvensis seeds were incubated at suboptimal (7°C), optimal (15°C) and supraoptimal (20°C) temperatures. Results indicated a higher germination of N(+) seeds, irrespective of hormone type, dose or incubation temperature. N(−) seeds were more sensitive to FLU at 7°C and to GA3 at 15°C, whereas N(+) seeds were more sensitive to FLU at 15-20°C and to PBZ at 7°C. At 20°C, N(+) seed germinability was stimulated by GA3 bounteracting the thermo-inhibitory effect. The higher seed germinability recorded from nitrogen-fertilised plants could be associated to a decrease in seed dormancy levels due to lower ABA levels during embryogenesis, thus requiring a lower amount of GAs to germinate. Further studies are required to confirm this hypothesis.FLURIDONELITHOSPERMUM ARVENSE L.MATERNAL EFFECTNITROGEN FERTILIZATIONPACLOBUTRAZOSEED DORMANCYSEMIARID REGIONWeed research

Similar Items