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
DOI:	https://doi.org/10.1111/ppl.13821
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPATSA)