Pigments, total soluble phenols and lignin levels of coffee seedlings inoculated with Colletotrichum gloeosporioides
Pigmentos, fenóis solúveis totais e lignina em plântulas de cafeeiro inoculadas com Colletotrichum gloeosporioides
| dc.creator | Maia, Fernanda Gonçalves Martins | |
| dc.creator | Ogoshi, Claudio | |
| dc.creator | Pierre, Rosana Oliveira | |
| dc.creator | Vieira, Jucilayne Fernandes | |
| dc.creator | Ribeiro junior, Pedro Martins | |
| dc.creator | Abreu, Mario Sobral | |
| dc.creator | Maia, Fernanda Gonçalves Martins | |
| dc.creator | Ogoshi, Claudio | |
| dc.creator | Pierre, Rosana Oliveira | |
| dc.creator | Vieira, Jucilayne Fernandes | |
| dc.creator | Ribeiro junior, Pedro Martins | |
| dc.creator | Abreu, Mario Sobral | |
| dc.date | 2012-08-06 | |
| dc.date | 2017-08-01T20:06:53Z | |
| dc.date | 2017-08-01T20:06:53Z | |
| dc.date | 2017-08-01 | |
| dc.date.accessioned | 2023-09-28T20:01:23Z | |
| dc.date.available | 2023-09-28T20:01:23Z | |
| dc.identifier | http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/248 | |
| dc.identifier | MAIA, F. G. M. et al. Pigments, total soluble phenols and lignin levels of coffee seedlings inoculated with Colletotrichum gloeosporioides. Coffee Science, Lavras, v. 7, n. 2, p. 152-159, maio/ago. 2012. | |
| dc.identifier | http://repositorio.ufla.br/jspui/handle/1/13669 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/9042582 | |
| dc.description | The objective of this work was to study the effects of different isolates of Colletotrichum gloeosporioides, as topigment level (chlorophyll a, b and total), total soluble phenols and soluble lignin in coffee seedlings obtained by artificially inoculatedtissue culture. The experiment was carried out in randomized block design in a 2 x 3 factorial scheme (2 genetic materials), 3 isolates(an isolate from mango fruits and another one from coffee plants), with 5 replicates and control (plants without inoculation). Theplants were inoculated with a suspension of 2 x 106 conidia.ml-1. The conidial suspension was sprayed on previously injured leaves.Leaves of inoculated plants were collected at 3 and 7 days after inoculation, except for leaves on the lower part of the plants.Afterwards, samples were prepared for the evaluation of chlorophyll, total soluble phenols and soluble lignin. The results showedthat the presence of the pathogen in healthy and diseased plants significantly reduced the amount of chlorophyll. At 7 days afterinoculation of healthy and diseased coffee plants higher total soluble phenol and soluble lignin levels were observed in response to theattack by Colletotrichum gloeosporioides. | |
| dc.description | Objetivou-se, neste trabalho, estudar os efeitos de diferentes isolados de Colletotrichum gloeosporioides sobre osteores de pigmentos (clorofila a, b e total), fenóis solúveis totais e lignina solúvel, em dois diferentes tempos, sobre mudas de caféobtidas por cultura de tecidos e inoculadas artificialmente. O experimento foi conduzido em blocos casualizados em esquemafatorial 2 x 3 (2 materiais génticos), 3 isolados (um obtido de mangueira e 2 isolados obtidos de plantas de café) + 2 (testemunhassem inoculação), com 5 repetições. As plantas foram inoculadas com uma suspensão de 2 x 106 conídios.ml-1. A suspensão deconídios foi pulverizada sobre folhas de cafeeiro, previamente feridas. Foram realizadas duas coletas, aos 3 e 7 dias apósinoculação, de todas as folhas da muda, exceto as folhas baixeiras. Em seguida, foi feito o preparo das amostras para avaliaçãode clorofila, fenóis solúveis totais e lignina solúvel. A partir dos resultados, pode-se concluir que a presença do patógeno, tantoem plantas sadias, como em plantas doentes diminuíram significativamente a quantidade de clorofila. Aos 7 dias após inoculaçãodas plantas de café sadias e doentes, observou-se um maior teor de fenóis solúveis totais e lignina solúvel em resposta ao ataquede Colletotrichum gloeosporioides. | |
| dc.format | application/pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.relation | http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/248/pdf | |
| dc.rights | Attribution 4.0 International | |
| dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
| dc.source | Coffee Science; v. 7, n. 2 (2012); 152-159 | |
| dc.source | Coffee Science; v. 7, n. 2 (2012); 152-159 | |
| dc.source | Coffee Science; v. 7, n. 2 (2012); 152-159 | |
| dc.source | 1984-3909 | |
| dc.source | 1809-6875 | |
| dc.subject | Scences Agricultural | |
| dc.subject | Coffea arabica | |
| dc.subject | Ciências agrárias | |
| dc.subject | Coffea arabica | |
| dc.subject | Response defense | |
| dc.subject | Resposta de defesa | |
| dc.subject | Colletotrichum gloeosporioides | |
| dc.title | Pigments, total soluble phenols and lignin levels of coffee seedlings inoculated with Colletotrichum gloeosporioides | |
| dc.title | Pigmentos, fenóis solúveis totais e lignina em plântulas de cafeeiro inoculadas com Colletotrichum gloeosporioides | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion |