Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8074 |
Resumo: | Nowadays there is a great concern about the recovery of degraded areas, mainly due to the threat of extinction of native plant species, such as the aroeira do sertão (Myracroduon urundeuva) native of the Caatinga biome. In line with this, inoculation of plant growth promoting rhizobacteria (PGPR) has been an alternative to minimize the adverse effects caused by drought stress in cultivated plants. However, little is known about the effects of RPCPs in native plant species of Caatinga. Therefore, it’s believed that the inoculation of a PGPR, Azospirillum lipoferum, in M. urundeuva plants might confer greater tolerance to drought stress. In this context, the present study evaluated the influence of A. lipoferum on the growth of M. urundeuva under drought stress. The experiment was conducted in a completely randomized design (DIC). In factorial 2 x 4 (with and without inoculum x four irrigation levels), ANOVA performed in software R and the means of treatments were compared by the LSD test (P < 0.05). Firstly, seeds of M. urundeuva were sanitized, and then part was inoculated with A. lipoferum, and another was not inoculated (control). Ten days after germination, the seedlings were submitted to four irrigation levels: 180 mm (control), 135 and 90 mm (moderate stress), and 45 mm (severe stress). The plants grew under photoperiod conditions of 12 hours at 28 ° C and 12 hours in the dark at 26 ° C, with relative humidity of 50% and light intensity of μmol of photons m-2 s-1. After 81 days biometric measures of the shoot and roots of the plants, and in the leaflet was quantified the leaf water potential (ΨWL), electrolyte leakage, chlorophyll content, soluble protein content, proline content, superoxide dismutase (SOD) activity and general appearance of the plants, as well as the percentage of fallen leaflets were evaluated. The inoculation was confirmed by the change of the colour of the semi-solid nitrogen-free bromothymol blue (NFB) culture medium from yellowish green to blue. In the inoculated plants, the adverse effects of moderate drought stress were minimized, while there was less leaflet drop and greater green tint, this was confirmed by the maintenance of the highest levels of chlorophyll a, b and total. The association of PGPR with the roots of the plants provided increases of 30% root length, 50% root dry weight, 34% root shoot dry weight and 10% soluble protein content. The inoculated plants still maintained 5% higher leaf water potential than those not inoculated, as well as presented lower membrane damage in moderate drought stress. On the other hand, SOD activity was significantly lower in the inoculated plants, possibly due to the induction of a non-enzymatic protective feature. In addition, the inoculated plants shown better morphological and physiological characteristics than those not inoculated. In this way, the inoculation of PGPR in M. urundeuva can be an alternative for the production of plants that are more tolerant to drought stress. In addition, this technique has a strong potential for use in reforestation and recovery plans of degraded areas in tropical dry forests (TDF). Nevertheless, further studies on the biochemical and physiological mechanisms that confer these tolerances are needed, as well as studies about these same mechanisms in other native plants. |
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SIMÕES, Adriano do NascimentoLIMA, André Luiz Alves deSANTOS, Carolina Etienne de Rosália e SilvaSILVA, Sérgio Luiz Ferreira daSARAIVA, Rogério de AquinoLIMA, André Luiz Alves deCOSTA, Cynthia Maria Carneirohttp://lattes.cnpq.br/5509969490825290OLIVEIRA, Douglas Moreira de2019-05-31T15:49:04Z2017-02-17OLIVEIRA, Douglas Moreira de. Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico. 2017. 89 f. Dissertação (Programa de Pós-Graduação em Produção Vegetal) - Universidade Federal Rural de Pernambuco, Serra Talhada.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8074Nowadays there is a great concern about the recovery of degraded areas, mainly due to the threat of extinction of native plant species, such as the aroeira do sertão (Myracroduon urundeuva) native of the Caatinga biome. In line with this, inoculation of plant growth promoting rhizobacteria (PGPR) has been an alternative to minimize the adverse effects caused by drought stress in cultivated plants. However, little is known about the effects of RPCPs in native plant species of Caatinga. Therefore, it’s believed that the inoculation of a PGPR, Azospirillum lipoferum, in M. urundeuva plants might confer greater tolerance to drought stress. In this context, the present study evaluated the influence of A. lipoferum on the growth of M. urundeuva under drought stress. The experiment was conducted in a completely randomized design (DIC). In factorial 2 x 4 (with and without inoculum x four irrigation levels), ANOVA performed in software R and the means of treatments were compared by the LSD test (P < 0.05). Firstly, seeds of M. urundeuva were sanitized, and then part was inoculated with A. lipoferum, and another was not inoculated (control). Ten days after germination, the seedlings were submitted to four irrigation levels: 180 mm (control), 135 and 90 mm (moderate stress), and 45 mm (severe stress). The plants grew under photoperiod conditions of 12 hours at 28 ° C and 12 hours in the dark at 26 ° C, with relative humidity of 50% and light intensity of μmol of photons m-2 s-1. After 81 days biometric measures of the shoot and roots of the plants, and in the leaflet was quantified the leaf water potential (ΨWL), electrolyte leakage, chlorophyll content, soluble protein content, proline content, superoxide dismutase (SOD) activity and general appearance of the plants, as well as the percentage of fallen leaflets were evaluated. The inoculation was confirmed by the change of the colour of the semi-solid nitrogen-free bromothymol blue (NFB) culture medium from yellowish green to blue. In the inoculated plants, the adverse effects of moderate drought stress were minimized, while there was less leaflet drop and greater green tint, this was confirmed by the maintenance of the highest levels of chlorophyll a, b and total. The association of PGPR with the roots of the plants provided increases of 30% root length, 50% root dry weight, 34% root shoot dry weight and 10% soluble protein content. The inoculated plants still maintained 5% higher leaf water potential than those not inoculated, as well as presented lower membrane damage in moderate drought stress. On the other hand, SOD activity was significantly lower in the inoculated plants, possibly due to the induction of a non-enzymatic protective feature. In addition, the inoculated plants shown better morphological and physiological characteristics than those not inoculated. In this way, the inoculation of PGPR in M. urundeuva can be an alternative for the production of plants that are more tolerant to drought stress. In addition, this technique has a strong potential for use in reforestation and recovery plans of degraded areas in tropical dry forests (TDF). Nevertheless, further studies on the biochemical and physiological mechanisms that confer these tolerances are needed, as well as studies about these same mechanisms in other native plants.Atualmente existe uma grande preocupação com a recuperação de áreas degradadas, principalmente pela ameaça de extinção de espécies vegetais nativas, como por exemplo a aroeira do sertão (Myracroduon urundeuva), nativa da Caatinga. A inoculação de rizobactérias promotoras do crescimento de plantas (RPCPs) tem sido uma alternativa para minimizar os efeitos adversos do estresse hídrico em plantas cultivadas. Entretanto, não se conhece sobre os efeitos das RPCPs em plantas da Caatinga. Portanto, acredita-se que a inoculação da RPCP, Azospirillum lipoferum, em plantas de M. urundeuva pode conferir maior tolerância ao estresse hídrico. Neste sentido, o presente estudo avaliou a influência dos efeitos da A. lipoferum no crescimento de M. urundeuva, sob estresse hídrico. O experimento foi conduzido em delineamento inteiramente casualizado (DIC). Em fatorial 2 x 4 (com e sem inóculo x quatro lâminas de irrigação), a ANOVA foi realizada no software R e as médias dos tratamentos foram comparadas pelo teste LSD (P < 0,05). Inicialmente, sementes de M. urundeuva foram sanitizadas e parte foi inoculada e outra não (controle). Dez dias após a germinação, as plântulas foram submetidas a quatro lâminas de irrigação: 180 mm (controle), 135 e 90 mm (estresse moderado), e 45 mm (estresse severo). As plantas cresceram sob condições de fotoperíodo de 12 horas a 28 ºC e 12 horas no escuro a 26 °C, com umidade relativa de 50% e intensidade luminosa de 450 μmol de fótons m-2 s-1. Após 81 dias foram realizadas medidas biométricas da parte aérea e das raízes das plantas, e nos folíolos foi quantificado o potencial hídrico foliar (ΨHF), além do extravasamento de eletrólitos, teor de clorofilas, teor de proteína, conteúdo de prolina, atividade da superóxido dismutase (SOD) e avaliação da aparência geral das plantas, bem como a porcentagem de folíolos caídos. A inoculação foi confirmada pela mudança de coloração do meio de cultura azul de bromotimol isento de nitrogênio (NFB) semissólido, de verde amarelado para azul. Nas plantas inoculadas, os efeitos adversos do estresse hídrico moderado foram minimizados, ao passo em que houve menor queda de folíolos e maior tonalidade de verde, confirmado pela manutenção dos mais altos teores de clorofila a, b e total. A associação da RPCP com as raízes das plantas proporcionou aumentos de 30% no comprimento da raiz, de 50% na massa seca da raiz, de 34% na massa seca da parte aérea e de 10% no conteúdo de proteínas solúveis, em relação às plantas controle. As plantas inoculadas ainda mantiveram o potencial hídrico foliar 5% maior em relação às não inoculadas, e apresentou menor dano de membrana no estresse hídrico moderado. Por outro lado, a atividade da SOD foi menor nas plantas inoculadas, possivelmente devido a indução de um caráter protetivo não enzimático. Além disso, as plantas inoculadas apresentaram características morfofisiológicas superiores às não inoculadas. Dessa forma, a inoculação de RPCP em M. urundeuva pode ser uma alternativa viável para produção de plantas mais tolerantes ao estresse hídrico. Ademais, essa técnica possui um forte potencial de uso em planos de reflorestamento e recuperação de áreas degradadas em regiões de florestas tropicais secas (FTS). Contudo, são necessários mais estudos sobre os mecanismos bioquímicos e fisiológicos que conferem essas tolerâncias, assim como, o estudo desses mesmos mecanismos em outras plantas nativas.Submitted by Mario BC (mario@bc.ufrpe.br) on 2019-05-31T15:49:04Z No. of bitstreams: 1 Douglas Moreira de Oliveira.pdf: 2387134 bytes, checksum: 2b746b86c33a525d0480dad8b80cb2b6 (MD5)Made available in DSpace on 2019-05-31T15:49:04Z (GMT). No. of bitstreams: 1 Douglas Moreira de Oliveira.pdf: 2387134 bytes, checksum: 2b746b86c33a525d0480dad8b80cb2b6 (MD5) Previous issue date: 2017-02-17Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Produção VegetalUFRPEBrasilUnidade Acadêmica de Serra TalhadaMyracrodruon urundeuvaAroeira do sertãoRizobactériaEstresse hídricoFITOTECNIA::MELHORAMENTO VEGETALInoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídricoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-1747323715939935130600600600600-696890503755266288426156072994701319672075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALDouglas Moreira de Oliveira.pdfDouglas Moreira de Oliveira.pdfapplication/pdf2387134http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8074/2/Douglas+Moreira+de+Oliveira.pdf2b746b86c33a525d0480dad8b80cb2b6MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8074/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/80742019-05-31 12:49:04.703oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2019-05-31T15:49:04Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
title |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
spellingShingle |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico OLIVEIRA, Douglas Moreira de Myracrodruon urundeuva Aroeira do sertão Rizobactéria Estresse hídrico FITOTECNIA::MELHORAMENTO VEGETAL |
title_short |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
title_full |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
title_fullStr |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
title_full_unstemmed |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
title_sort |
Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico |
author |
OLIVEIRA, Douglas Moreira de |
author_facet |
OLIVEIRA, Douglas Moreira de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
SIMÕES, Adriano do Nascimento |
dc.contributor.advisor-co1.fl_str_mv |
LIMA, André Luiz Alves de |
dc.contributor.advisor-co2.fl_str_mv |
SANTOS, Carolina Etienne de Rosália e Silva |
dc.contributor.referee1.fl_str_mv |
SILVA, Sérgio Luiz Ferreira da |
dc.contributor.referee2.fl_str_mv |
SARAIVA, Rogério de Aquino |
dc.contributor.referee3.fl_str_mv |
LIMA, André Luiz Alves de |
dc.contributor.referee4.fl_str_mv |
COSTA, Cynthia Maria Carneiro |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5509969490825290 |
dc.contributor.author.fl_str_mv |
OLIVEIRA, Douglas Moreira de |
contributor_str_mv |
SIMÕES, Adriano do Nascimento LIMA, André Luiz Alves de SANTOS, Carolina Etienne de Rosália e Silva SILVA, Sérgio Luiz Ferreira da SARAIVA, Rogério de Aquino LIMA, André Luiz Alves de COSTA, Cynthia Maria Carneiro |
dc.subject.por.fl_str_mv |
Myracrodruon urundeuva Aroeira do sertão Rizobactéria Estresse hídrico |
topic |
Myracrodruon urundeuva Aroeira do sertão Rizobactéria Estresse hídrico FITOTECNIA::MELHORAMENTO VEGETAL |
dc.subject.cnpq.fl_str_mv |
FITOTECNIA::MELHORAMENTO VEGETAL |
description |
Nowadays there is a great concern about the recovery of degraded areas, mainly due to the threat of extinction of native plant species, such as the aroeira do sertão (Myracroduon urundeuva) native of the Caatinga biome. In line with this, inoculation of plant growth promoting rhizobacteria (PGPR) has been an alternative to minimize the adverse effects caused by drought stress in cultivated plants. However, little is known about the effects of RPCPs in native plant species of Caatinga. Therefore, it’s believed that the inoculation of a PGPR, Azospirillum lipoferum, in M. urundeuva plants might confer greater tolerance to drought stress. In this context, the present study evaluated the influence of A. lipoferum on the growth of M. urundeuva under drought stress. The experiment was conducted in a completely randomized design (DIC). In factorial 2 x 4 (with and without inoculum x four irrigation levels), ANOVA performed in software R and the means of treatments were compared by the LSD test (P < 0.05). Firstly, seeds of M. urundeuva were sanitized, and then part was inoculated with A. lipoferum, and another was not inoculated (control). Ten days after germination, the seedlings were submitted to four irrigation levels: 180 mm (control), 135 and 90 mm (moderate stress), and 45 mm (severe stress). The plants grew under photoperiod conditions of 12 hours at 28 ° C and 12 hours in the dark at 26 ° C, with relative humidity of 50% and light intensity of μmol of photons m-2 s-1. After 81 days biometric measures of the shoot and roots of the plants, and in the leaflet was quantified the leaf water potential (ΨWL), electrolyte leakage, chlorophyll content, soluble protein content, proline content, superoxide dismutase (SOD) activity and general appearance of the plants, as well as the percentage of fallen leaflets were evaluated. The inoculation was confirmed by the change of the colour of the semi-solid nitrogen-free bromothymol blue (NFB) culture medium from yellowish green to blue. In the inoculated plants, the adverse effects of moderate drought stress were minimized, while there was less leaflet drop and greater green tint, this was confirmed by the maintenance of the highest levels of chlorophyll a, b and total. The association of PGPR with the roots of the plants provided increases of 30% root length, 50% root dry weight, 34% root shoot dry weight and 10% soluble protein content. The inoculated plants still maintained 5% higher leaf water potential than those not inoculated, as well as presented lower membrane damage in moderate drought stress. On the other hand, SOD activity was significantly lower in the inoculated plants, possibly due to the induction of a non-enzymatic protective feature. In addition, the inoculated plants shown better morphological and physiological characteristics than those not inoculated. In this way, the inoculation of PGPR in M. urundeuva can be an alternative for the production of plants that are more tolerant to drought stress. In addition, this technique has a strong potential for use in reforestation and recovery plans of degraded areas in tropical dry forests (TDF). Nevertheless, further studies on the biochemical and physiological mechanisms that confer these tolerances are needed, as well as studies about these same mechanisms in other native plants. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-02-17 |
dc.date.accessioned.fl_str_mv |
2019-05-31T15:49:04Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
OLIVEIRA, Douglas Moreira de. Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico. 2017. 89 f. Dissertação (Programa de Pós-Graduação em Produção Vegetal) - Universidade Federal Rural de Pernambuco, Serra Talhada. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8074 |
identifier_str_mv |
OLIVEIRA, Douglas Moreira de. Inoculação com rizobactéria promotora do crescimento de plantas em Myracrodruon urundeuva (Allemão) confere maior tolerância ao estresse hídrico. 2017. 89 f. Dissertação (Programa de Pós-Graduação em Produção Vegetal) - Universidade Federal Rural de Pernambuco, Serra Talhada. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8074 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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dc.relation.cnpq.fl_str_mv |
2615607299470131967 |
dc.relation.sponsorship.fl_str_mv |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural de Pernambuco |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Produção Vegetal |
dc.publisher.initials.fl_str_mv |
UFRPE |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Unidade Acadêmica de Serra Talhada |
publisher.none.fl_str_mv |
Universidade Federal Rural de Pernambuco |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da UFRPE instname:Universidade Federal Rural de Pernambuco (UFRPE) instacron:UFRPE |
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Universidade Federal Rural de Pernambuco (UFRPE) |
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UFRPE |
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UFRPE |
reponame_str |
Biblioteca Digital de Teses e Dissertações da UFRPE |
collection |
Biblioteca Digital de Teses e Dissertações da UFRPE |
bitstream.url.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8074/2/Douglas+Moreira+de+Oliveira.pdf http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8074/1/license.txt |
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Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE) |
repository.mail.fl_str_mv |
bdtd@ufrpe.br ||bdtd@ufrpe.br |
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