Data/hora: 19/06/2024 03:09:12

Biblioteca(s): 	Embrapa Meio Ambiente.	
Data corrente: 	17/07/2023	
Data da última atualização: 	22/12/2023	
Autoria: 	FERREIRA, J. A.; RAMOS, J. A.; SOUZA, D. R. C. de; DI LELLA, B.; HELMICK, E. E.; QUEIROZ, S. C. do N. de; BAHDER, B. W.	
Afiliação: 	JORDANA ALVES FERREIRA; JOSÉ A RAMOS, NOVA SOUTHEASTERN UNIVERSITY; DEBORA RENATA CASSOLI DE S DUTRA, CNPMA; GRANDON DI LELLA, UNIVERSITY OF FLORIDA; ERICKA E HELMICK, UNIVERSITY OF FLORIDA; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; BRIAN W BAHDER, UNIVERSITY OF FLORIDA.	
Título: 	Identification of green-leaf volatiles released from cabbage palms (Sabal palmetto) infected with the lethal Bronzing phytoplasma.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Plants, v. 12, n. 11, article 2164, 2023.	
ISSN: 	2223-7747	
DOI: 	https://doi.org/10.3390/plants12112164	
Idioma: 	Inglês	
Conteúdo: 	Abstract: Lethal bronzing (LB) is a fatal infection that affects over 20 species of palms (Arecaceae) and is caused by the phytoplasma ?Candidatus Phytoplasma aculeata?. This pathogen causes significant economic losses to landscape and nursery companies in Florida, USA. Recently, the vector was determined to be the planthopper Haplaxius crudus, which was more abundant on LB-infected palms. Herein, the volatile chemicals emitted from LB-infected palms were characterized using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME/GC-MS). Infected Sabal palmetto were identified and confirmed as positive for LB via quantitative PCR. Healthy controls of each species were selected for comparison. All infected palms exhibited elevated levels of hexanal and E-2-hexenal. Threatened palms showed high releasing concentrations of 3-hexenal and Z-3-hexen-1-ol. The volatiles characterized herein are common green-leaf volatiles (GLVs) emitted by plants under stress. This study considers the first documented case of GLVs in palms attributed to phytoplasma infection. Due to the apparent attraction of LB-infected palms to the vector, one or several of the GLVs identified in this study could serve as a lure for the vector and supplement management programs.	
Thesagro: 	Doença Fúngica.	
Thesaurus Nal: 	Chemical analysis; Fungal diseases of plants; Gas chromatography-mass spectrometry; Phytoplasma; Plant response; Sabal palmetto; Volatile organic compounds.	
Categoria do assunto: 	W Química e Física	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154952/1/Dutra-Identification-green-leaf-2023.pdf	
Registro original: 	Embrapa Meio Ambiente (CNPMA)	
Exemplares: 	CNPMA - (17414-1) - UPC - AP - DD -  -  -  - DIS