000 03571nab a2200313 i 4500
003 BR-BrBNA
005 20240313094956.0
008 240313b2012 bl.qr|pooa||| 00| 0 por |
040 _aBR-BrBNA
_bpor
072 _aF50
_b0336
072 _aH20
100 _aMussury, R.M.
100 _aBetoni, R.
100 _aSilva, M.A.
100 _aScalon, S.P.Q.
245 _aAnatomia foliar de soja infectada por Phakopsora pachyrhizi H. Sydow & Sydow e tratadas com extratos vegetais
500 _aPublicação on-line; 18 ref.; 1 table; 22 illus.; Summaries (En, Pt)
520 _a RESUMO: Folhas de Glycine max (L.) Merril, infectadas pelo fungo Phakopsora pachyrhizi H. Sydow & Sydow e tratadas com extratos vegetais foram avaliadas, visando determinar in vivo as modificações anatômicas nas diferentes estruturas/tecidos foliares, além de reconhecer prováveis mecanismos de defesa. Folhas de soja cultivar 181 provenientes do quinto nó foram inoculadas com fungo e tratadas com diferentes extratos vegetais, água e álcool 70%. Para comparação foram analisadas a anatomia das folhas sadia e infectada e realizadas medidas nas estruturas/ tecidos foliares. Na folha infectada, observou-se destruição da epiderme e parênquima lacunoso, visível proliferação de tricomas e cutícula espessada, principalmente na face abaxial. Observouse a presença de compostos fenólicos nas células da epiderme quando rompida, em função do crescimento micelial. Nas folhas infectadas e tratadas com os extratos vegetais de Azadirachta indica, Maytenus ilicifolia e Allium sativum, as estruturas/tecidos vegetais apresentaram aumento de espessura por alongamento celular. Palavras-chave: ferrugem da soja, ferrugem asiática, urediósporos, fungos, Glycine max
520 _a ABSTRACT. Leaf anatomy of soybean infected with Phakopsora pachyrhizi H. Sydow & Sydow and treated with plant extracts. Glycine max (L.) Merril leaves, infected by the fungus Phakopsora pachyrhizi H. Sydow & Sydow and treated with plant extracts, were evaluated with the aim of determining in vivo the anatomical modifications in different leaf structures and of identifying probable defense mechanisms. Leaves from the 181 soybean cultivar originated from the fifth node were inoculated with the fungus and treated with different plant extracts, water and alcohol at 70%. For comparison, the anatomy of the healthy and infected leaves was analyzed and the leaf structures were measured. In the infected leaf, there was destruction of the epidermis and lacunar parenchyma, apparent trichome proliferation and denser cuticle, especially on the abaxial surface. There were also phenolic compounds in ruptured epidermis cells, due to mycelium growth. In the infected leaves treated with Azadirachta indica, Maytenus ilicifolia and Allium sativum extracts, the plant tissues had an increase in thickness due to cell elongation. Key words: soybean rust, Asiatic soybean rust, urediniospores, fungi, Glycine max
650 _aFERRUGEM ASIÁTICA
650 _aPHAKOPSORA PACHYRHIZI
650 _aUREDÓSPORO
650 _aFUNGO
650 _aGLYCINE MAX
773 0 _03543
_9313852
_dBotucatu-SP Instituto de Biociências - Departamento de Química e Bioquímica 1998
_o2024-0124
_tRevista Brasileira de Plantas Medicinais (Brazil)
_x1516-0572
_gv. 14(1) p. 18-25; (2012)
_wBR2024000147
856 _uhttps://www.scielo.br/j/rbpm/a/fZ6ZSqkmtZd5wTrRnMcBYzv/?format=pdf&lang=pt
942 _cAnalítica
999 _c298771
_d298771