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Plants 2015, 4(3), 664-677; doi:10.3390/plants4030664

Possible Roles of Strigolactones during Leaf Senescence

Graduate School of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura-machi, Ora-gun, Gumma 374-0193, Japan
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Academic Editor: Salma Balazadeh
Received: 29 July 2015 / Revised: 7 September 2015 / Accepted: 8 September 2015 / Published: 11 September 2015
(This article belongs to the Special Issue Plant Senescence)
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Abstract

Leaf senescence is a complicated developmental process that involves degenerative changes and nutrient recycling. The progress of leaf senescence is controlled by various environmental cues and plant hormones, including ethylene, jasmonic acid, salicylic acid, abscisic acid, cytokinins, and strigolactones. The production of strigolactones is induced in response to nitrogen and phosphorous deficiency. Strigolactones also accelerate leaf senescence and regulate shoot branching and root architecture. Leaf senescence is actively promoted in a nutrient-poor soil environment, and nutrients are transported from old leaves to young tissues and seeds. Strigolactones might act as important signals in response to nutrient levels in the rhizosphere. In this review, we discuss the possible roles of strigolactones during leaf senescence. View Full-Text
Keywords: leaf senescence; phytohormones; nutrient deficiency; strigolactone; translocation leaf senescence; phytohormones; nutrient deficiency; strigolactone; translocation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yamada, Y.; Umehara, M. Possible Roles of Strigolactones during Leaf Senescence. Plants 2015, 4, 664-677.

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