Abstract

PORTA, Helena  and  JIMENEZ-NOPALA, Gladys. Role of plant hormones in the regulation of autophagy in plants. TIP [online]. 2019, vol.22, e160.  Epub Mar 04, 2020. ISSN 1405-888X.  https://doi.org/10.22201/fesz.23958723e.2018.0.160.

Plant hormones are signaling molecules that are localized in different plant tissues and in specific amounts according to the process that they regulate. Changes in the concentration and distribution of plant hormones modulate the development and responses to biotic and abiotic stress.

Autophagy, which means self-digestion, is a mechanism that degrades damaged or toxic components that arise from the metabolism, in order to recycle them and maintain the health of the cell. The most studied type of autophagy is macroautophagy which will be referred in this review as autophagy. In this process, double membrane vesicles called autophagosomes are formed to enclose damaged or unwanted cell cargo, which is later deposited for its degradation into the vacuole, from where the cell recovers amino acids, lipids and proteins. Indeed, communication between plant hormones and autophagy has been observed during development and growth, senescence and programmed cell death. In this review we discuss the advances in the understanding of the role of plant hormones involved in the modulation of autophagy in plants.

Keywords : autophagy; plant hormones; stress and development.

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