Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1148636
Title: Dehydration response in Stylosanthesscabra: transcriptional, biochemical, and physiological modulations.
Authors: 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.
Affiliation: 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.
Date Issued: 2022
Citation: Physiologia Plantarum, 174, e13821. 2022.
Description: 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
Thesagro: Caatinga
Vegetação Nativa
Desidratação Química
Deficiência Hídrica
Hidratação
Fisiologia Vegetal
Resistência a Seca
NAL Thesaurus: Stylosanthes
Alternative crops
Drought tolerance
Keywords: Forrageira nativa
Planta resistente a seca
Deficit hídrico
ISSN: 0031-9317 eISSN 1399-3054
Language: Portugues
DOI: https://doi.org/10.1111/ppl.13821
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CPATSA)

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