Data/hora: 03/06/2024 12:57:23

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 23/11/2022
Data da última atualização: | 28/11/2022
Autoria: | FERREIRA-NETO, R, C.; ARAÚJO, F. C. de; SILVA, R. L. de O.; MELO, N. F. de; PANDOLF, V.; FROSI, G.; MORAIS, D. A. de L.; SILVA, M. D. da; RIVAS, R.; SANTOS, M. G.; AIDAR, S. de T.; MORGANTE, C. V.; BENKO-ISEPPON, A. M.
Afiliação: | RIBAMAR COSTA FERREIRA-NETO, UFPE; FLÁVIA CZEKALSKI DE ARAÚJO, UFPE; ROBERTA LANE DE OLIVEIRA SILVA, UFPE; NATONIEL FRANKLIN DE MELO, CPATSA; VALESCA PANDOLF, UFPE; GABRIELLA FROSI, Université de Sherbrooke,Sherbrooke, Québec, Canada; DAVID ANDERSON DE LIMA MORAIS, Université deSherbrooke, Sherbrooke, Québec, Canada; MANASSÉS DANIEL DA SILVA, UFPE; REBECA RIVAS, UFPE; MAURO GUIDA SANTOS, UFPE; SAULO DE TARSO AIDAR, CPATSA; CAROLINA VIANNA MORGANTE, CPATSA; ANA MARIA BENKO-ISEPPON, UFPE.
Título: | Dehydration response in Stylosanthesscabra: transcriptional, biochemical, and physiological modulations.
Ano de publicação: | 2022
Fonte/Imprenta: | Physiologia Plantarum, 174, e13821. 2022.
ISSN: | 0031-9317 eISSN 1399-3054
DOI: | https://doi.org/10.1111/ppl.13821
Idioma: | Português
Conteúdo: | tylosanthes scabra, popularly known as stylo, is native to the Brazilian Caatinga semi-arid region and stands out as a drought-tolerant shrub forage crop. This work pro-vides information about the plant response during the first 48 h of water deficit,followed by a rehydration treatment. Besides root transcriptomics data, 13 physiolog-ical or biochemical parameters were scrutinized. Additionally, RNA-Seq annotatedtranscripts not associated with the?Viridiplantae?clade were taxonomically catego-rized. It was found thatS. scabraquickly perceives and recovers from the oscillationsof the imposed water regime. Physiologically, mechanisms that minimize evapotrans-piration or protect the photosynthetic apparatus stood out. Biochemically, it wasfound that the root tissue invests in synthesizing compounds that can act as osmo-lytes (proline and sugars), emphasizing the importance of osmoregulation to waterdeficit acclimation. Consistently, transcriptome and qPCR analyses showed that a setof enriched biological processes with upregulated (UR) transcripts were involved inprotective functions against reactive oxygen species or encoding enzymes of impor-tant metabolic pathways, which might contribute toS. scabraresponse to water defi-cit. Additionally, several UR kinases and transcription factors were identified. Finally,in an innovative approach, some naturally occurring microbial groups (such asSchizo-saccharomyces,Bradyrhizobium, etc.) were identified in theS. scabraroots. This studyreveals insights into the physiological, biochemical, and molecular mechanisms under-lying theS. scabraresponse to water deficit and provides candidate genes that maybe useful in developing drought-tolerant crop varieties through biotechnologicalapplications
Palavras-Chave: | Deficit hídrico; Forrageira nativa; Planta resistente a seca.
Thesagro: | Caatinga; Deficiência Hídrica; Desidratação Química; Fisiologia Vegetal; Hidratação; Resistência a Seca; Vegetação Nativa.
Thesaurus Nal: | Alternative crops; Drought tolerance; Stylosanthes.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148636/1/Physiologia-Plantarun.Dehydration-response-in-Stylosanthes.2022.pdf
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (60178-1) - UPC - AP - DD -  -  -  - DIS