Ethylene and the Regulation of Physiological and Morphological Responses to Nutrient Deficiencies

• Published in: Plant physiology (Bethesda) Vol. 169; no. 1; pp. 51 - 60
• Main Authors: García, María José, Romera, Francisco Javier, Lucena, Carlos, Alcántara, Esteban, Pérez-Vicente, Rafael
• Format: Journal Article
• Language: English
• Published: United States American Society of Plant Biologists 01.09.2015
• Series: Focus on Ethylene
• Subjects: Auxins; Ethylenes - metabolism; Gene expression regulation; Genes; Iron Deficiencies; Nutrient nutrient interactions; Nutritional deficiencies; Phosphorus - deficiency; Physiological responses; Plant Development; Plant Growth Regulators - metabolism; Plant nutrition; Plant Physiological Phenomena; Plant roots; Plant Roots - genetics; Plant Roots - metabolism; Plants; Plants - genetics; Plants - metabolism; Potassium - metabolism; Signal Transduction; Stress, Physiological; Sulfur - deficiency; Up regulation; Update on Ethylene and Nutrient Deficiency Responses; UPDATES - FOCUS ISSUE
• DOI: 10.1104/pp.15.00708
• ISSN: 0032-0889; 1532-2548

To cope with nutrient deficiencies, plants develop both morphological physiological and responses. The regulation of these responses is not totally understood, but some hormones and signaling substances have been implicated. It was suggested several years ago that ethylene participates in the regulation of responses to iron and phosphorous deficiency. More recently, its role has been extended to other deficiencies, such as potassium, sulfur, and others. The role of ethylene in so many deficiencies suggests that, to confer specificity to the different responses, it should act through different transduction pathways and/or in conjunction with other signals. In this update, the data supporting a role for ethylene in the regulation of responses to different nutrient deficiencies will be reviewed. In addition, the results suggesting the action of ethylene through different transduction pathways and its interaction with other hormones and signaling substances will be discussed.