Influences of Pathogen- Host interactions in the Environment on the Biological functions of plants

• Autor(a) principal: Leite, Natanielle de Oliveira Gomes
• Data de Publicação: 2020
• Outros Autores: Chagas, Aleyres Bispo, Costa, Marília Layse Alves da, Farias, Laryssa Roberta Alves, Cunha, Amanda Lima, Rocha, Mabel Alencar do Nascimento, Nascimento, Cicera Maria Alencar do, Rocha Júnior, Emanoel Ferdinando da, Maranhão, Tereza Lúcia Gomes Quirino, Santos, Aldenir Feitosa dos, Silva, José Vieira
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/8126
• topic: Biological activity; Vegetable response; Resistance.; Atividade Biológica; Resposta Vegetal; Resistência.; Palabras clave; Actividad biológica; Resistencia.

The aim of the present work was to present the interaction between pathogens - host - environment, and the main aspects involved in the defense mechanism of plants against attack by pathogens, showing some diseases caused by pathogens. The research is a bibliographic review carried out on articles, books, theses, dissertations and monographs from 1982 to 2020, in English and Portuguese. For the elaboration of the manuscript, the bases of SciELO, Google scholar, Capes journals and books were used, the descriptors used were Interaction plant - pathogen - environment. Plants have defenses that can be actively expressed in response to pathogens, generally respond to the attack of phytopathogens through structural characteristics that act as physical barriers and prevent them from spreading, through biochemical reactions that produce toxic substances for the pathogen or create conditions that inhibit their development. In the pathogen-host interaction process, the plant's defense system is activated by various means, resulting in the production of toxic substances to pathogens, preventing their establishment. Since, these defenses can be structural or chemical, and depending on the attacking pathogen. In addition, it is important to note that every action in this pathogen-host interaction system results in a reaction (physical, biochemical and climatic conditions). Where, there is a dynamic balance in this relationship and this balance determines the resistance or susceptibility of plants to pathogens. Therefore, when there is an imbalance in the plant's functions, it is harmful and leads to the development of symptoms, causing damage to the host and consequently affecting the interactions.