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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
27/11/2018 |
Data da última atualização: |
11/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
AGUIAR, N. O.; OLIVARES, F. L.; NOVOTNY, E. H.; CANELLAS, L. P. |
Afiliação: |
NATALIA O. AGUIAR, UENF; FABIO L. OLIVARES, UENF; ETELVINO HENRIQUE NOVOTNY, CNPS; LUCIANO P. CANELLAS, UENF. |
Título: |
Changes in metabolic profiling of sugarcane leaves induced by endophytic diazotrophic bacteria and humic acids. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
PeerJ, v. 6, article e5445, 2018. |
DOI: |
https://doi.org/10.7717/peerj.5445 |
Idioma: |
Inglês |
Conteúdo: |
Plant growth-promoting bacteria (PGPB) and humic acids (HA) have been used as
biostimulants in field conditions. The complete genomic and proteomic transcription
of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus is available but
interpreting and utilizing this information in the field to increase crop performance
is challenging. The identification and characterization of metabolites that are induced
by genomic changes may be used to improve plant responses to inoculation. The
objective of this study was to describe changes in sugarcane metabolic profile that
occur when HA and PGPB are used as biostimulants. Inoculum was applied to soil
containing 45-day old sugarcane stalks. One week after inoculation, the methanolic
extracts from leaves were obtained and analyzed by gas chromatography coupled to
time-of-flight mass spectrometry; a total of 1,880 compounds were observed and
280 were identified in all samples. The application of HA significantly decreased the
concentration of 15 metabolites, which generally included amino acids. HA increased
the levels of 40 compounds, and these included metabolites linked to the stress response
(shikimic, caffeic, hydroxycinnamic acids, putrescine, behenic acid, quinoline xylulose,
galactose, lactose proline, oxyproline and valeric acid) and cellular growth (adenine and
adenosine derivatives, ribose, ribonic acid and citric acid). Similarly, PGPB enhanced
the level of metabolites identified in HA-treated soils; e.g., 48 metabolites were elevated
and included amino acids, nucleic acids, organic acids, and lipids. Co-inoculation
(HACPGPB) boosted the level of 110 metabolites with respect to non-inoculated
controls; these included amino acids, lipids and nitrogenous compounds. Changes
in the metabolic profile induced by HA+PGPB influenced both glucose and pentose
pathways and resulted in the accumulation of heptuloses and riboses, which are
substrates in the nucleoside biosynthesis and shikimic acid pathways. The mevalonate
pathway was also activated, thus increasing phytosterol synthesis. The improvement
in cellular metabolism observed with PGPB+HA was compatible with high levels of
vitamins. Glucuronate and amino sugars were stimulated in addition to the products
and intermediary compounds of tricarboxylic acid metabolism. Lipids and amino acids
were the main compounds induced by co-inoculation in addition to antioxidants,
stress-related metabolites, and compounds involved in cellular redox. The primary
compounds observed in each treatment were identified, and the effect of co-inoculation
(HACPGPB) on metabolite levels was discussed. MenosPlant growth-promoting bacteria (PGPB) and humic acids (HA) have been used as
biostimulants in field conditions. The complete genomic and proteomic transcription
of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus is available but
interpreting and utilizing this information in the field to increase crop performance
is challenging. The identification and characterization of metabolites that are induced
by genomic changes may be used to improve plant responses to inoculation. The
objective of this study was to describe changes in sugarcane metabolic profile that
occur when HA and PGPB are used as biostimulants. Inoculum was applied to soil
containing 45-day old sugarcane stalks. One week after inoculation, the methanolic
extracts from leaves were obtained and analyzed by gas chromatography coupled to
time-of-flight mass spectrometry; a total of 1,880 compounds were observed and
280 were identified in all samples. The application of HA significantly decreased the
concentration of 15 metabolites, which generally included amino acids. HA increased
the levels of 40 compounds, and these included metabolites linked to the stress response
(shikimic, caffeic, hydroxycinnamic acids, putrescine, behenic acid, quinoline xylulose,
galactose, lactose proline, oxyproline and valeric acid) and cellular growth (adenine and
adenosine derivatives, ribose, ribonic acid and citric acid). Similarly, PGPB enhanced
the level of metabolites identified in HA-treated soils; e.g., 48 meta... Mostrar Tudo |
Palavras-Chave: |
Bactéria fixadora de nitrogênio; Bioestimulante; Promoção do crescimento vegetal; Substância húmica. |
Thesagro: |
Biofertilizante. |
Thesaurus Nal: |
Biofertilizers; Humic substances; Metabolomics; Nitrogen-fixing bacteria; Plant growth. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187136/1/2018-053.pdf
|
Marc: |
LEADER 03533naa a2200289 a 4500 001 2100181 005 2021-11-11 008 2018 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.7717/peerj.5445$2DOI 100 1 $aAGUIAR, N. O. 245 $aChanges in metabolic profiling of sugarcane leaves induced by endophytic diazotrophic bacteria and humic acids.$h[electronic resource] 260 $c2018 520 $aPlant growth-promoting bacteria (PGPB) and humic acids (HA) have been used as biostimulants in field conditions. The complete genomic and proteomic transcription of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus is available but interpreting and utilizing this information in the field to increase crop performance is challenging. The identification and characterization of metabolites that are induced by genomic changes may be used to improve plant responses to inoculation. The objective of this study was to describe changes in sugarcane metabolic profile that occur when HA and PGPB are used as biostimulants. Inoculum was applied to soil containing 45-day old sugarcane stalks. One week after inoculation, the methanolic extracts from leaves were obtained and analyzed by gas chromatography coupled to time-of-flight mass spectrometry; a total of 1,880 compounds were observed and 280 were identified in all samples. The application of HA significantly decreased the concentration of 15 metabolites, which generally included amino acids. HA increased the levels of 40 compounds, and these included metabolites linked to the stress response (shikimic, caffeic, hydroxycinnamic acids, putrescine, behenic acid, quinoline xylulose, galactose, lactose proline, oxyproline and valeric acid) and cellular growth (adenine and adenosine derivatives, ribose, ribonic acid and citric acid). Similarly, PGPB enhanced the level of metabolites identified in HA-treated soils; e.g., 48 metabolites were elevated and included amino acids, nucleic acids, organic acids, and lipids. Co-inoculation (HACPGPB) boosted the level of 110 metabolites with respect to non-inoculated controls; these included amino acids, lipids and nitrogenous compounds. Changes in the metabolic profile induced by HA+PGPB influenced both glucose and pentose pathways and resulted in the accumulation of heptuloses and riboses, which are substrates in the nucleoside biosynthesis and shikimic acid pathways. The mevalonate pathway was also activated, thus increasing phytosterol synthesis. The improvement in cellular metabolism observed with PGPB+HA was compatible with high levels of vitamins. Glucuronate and amino sugars were stimulated in addition to the products and intermediary compounds of tricarboxylic acid metabolism. Lipids and amino acids were the main compounds induced by co-inoculation in addition to antioxidants, stress-related metabolites, and compounds involved in cellular redox. The primary compounds observed in each treatment were identified, and the effect of co-inoculation (HACPGPB) on metabolite levels was discussed. 650 $aBiofertilizers 650 $aHumic substances 650 $aMetabolomics 650 $aNitrogen-fixing bacteria 650 $aPlant growth 650 $aBiofertilizante 653 $aBactéria fixadora de nitrogênio 653 $aBioestimulante 653 $aPromoção do crescimento vegetal 653 $aSubstância húmica 700 1 $aOLIVARES, F. L. 700 1 $aNOVOTNY, E. H. 700 1 $aCANELLAS, L. P. 773 $tPeerJ$gv. 6, article e5445, 2018.
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