Leaf senescence and its regulation with phytohormones and essential elements: An overview

Abstract

Leaf senescence is a crucial developing phase that requires the orderly disassembly of macromolecules in order to transport the nutrients from leaves into other organs and is life-threatening for plants capability. The leaf senescence is the result of a multifaceted and highly regulated mechanism involving the corresponding activities of several pathways. A lot of progress has been made recently in understanding signaling pathways of senescence, as well as how to complete the orderly process of degeneration. This paper mainly covers recent developments in the senescence of leaf and describes the function of phytohormones and essential elements from the molecular network dynamics.