000			02673nab a2200313 i 4500
003			BR-BrBNA
005			20240927121149.0
008			240927b2022 bl.qr|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aF60
072			_aF61
100			_aPacheco, Fernanda Ventorim
100			_aAlvarenga, Ivan Caldeira Almeida
100			_aBertoluccI, Suzan Kelly Vilela
100			_aPinto, José Eduardo Brasil Pereira
100			_aAlvarenga, Amauri Alves de
245			_aWater suppression indicates the prevalence of the secondary defense system in Piper aduncum
500			_aPublicação on-line; Bibliography p. 47-50 (52 ref.); 4 tables; 2 illus.; Summary (En)
520			_a ABSTRACT The aim of this work was to evaluate the response of Piper aduncum to water suppression. The experiment was conducted in a greenhouse, in an entirely randomized blocks, with five treatments: 0, 2, 4, 6, and 8 days without irrigation. After this period, dry matter, photosynthetic pigments (chlorophyll a, b, and carotenoids), leaf temperature, activity of the enzymes ascorbate peroxidase (APX), catalase (CAT) and superoxide dismutase (SOD) were evaluated. The essential oil content of leaves and roots was also quantified through hydrodistillation, as well as the identification of constituents by CG-MS. The period of water suppression influenced the content of chlorophyll a, carotenoids, and enzymatic activity of APX and CAT. The activities of APX and CAT were reduced under low water availability (CAT only increased after 4 days of suppression). Meanwhile, SOD had its activity increased under eight days of water suppression. In addition, there was an increase in essential oil content when subjected to stress. The predominant classes of constituents in the leaves were sesquiterpenes (32.56-36.54%) and phenylpropanoids (33.12- 44.97%) in the roots. E-nerolidol was the major constituent of leaves (23.56- 26.75%) and apiol (17.57-32.78%) of the roots. Thus, water suppression favors the secondary metabolism of the species. Keywords: Terpenes, phenylpropanoids, medicinal plants, water stress, essential oil.
650			_aPIPERACEAE
650			_aPLANTA MEDICINAL
650			_aCOMPOSTO ORGÂNICO
650			_aÓLEO ESSENCIAL
650			_aDEFICIÊNCIA HÍDRICA
773	0		_03543 _9344879 _dBotucatu-SP Instituto de Biociências - Departamento de Química e Bioquímica 1998 _o2024-5207 _tRevista Brasileira de Plantas Medicinais (Brazil) _x1516-0572 _gv. 24(2) p. 38-50; (2022) _wBR2024002596
856			_uhttps://www.sbpmed.org.br/admin/files/papers/file_UgUsUux8IxMz.pdf
942			_cANA
999			_c327851 _d327851