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Recent advances in molecular events of fruit abscission

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Biologia Plantarum

Abstract

It is widely accepted that fruit abscission is a highly regulated developmental process that is both influenced and activated in response to changing environment and plays crucial roles in the health and reproductive success of plants. Recent evidences showed that numerous genes related to metabolic and signalling pathways were coordinately implicated in regulating fruit abscission. Cross talks within hormones, between saccharides and hormones, as well as between polyamines and ethylene result in synergetic or antagonistic interactions which together play an important role in adjusting fruit abscission. Although hormones are the most studied internal factors related to abscission, the role of saccharides and polyamines during fruit abscission is emerging now. The characterizations of the molecular mechanisms of regulating fruit abscission are essential to develop effective strategies for controlling this process in plants.

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Abbreviations

ABA:

abscisic acid

ACC:

1-aminocyclopropane-1-carboxylic acid

ACO:

1-aminocyclopropane-1-carboxylic acid oxidase

ACS:

1-aminocyclopropane-1-carboxylic acid synthase

ADC:

arginine decarboxylase

ADE:

adenylate

AFLP:

amplified fragment length polymorphism

AVG:

aminoethoxyvinylglycine

AZ:

abscission zone

CMNP:

5-chloro-3-methyl-4-nitro-1H-pyrazole

DAO:

diamine oxidase

D-SAM:

decarboxylated S-adenosyl methionine

EG:

β-1,4-glucanase

GA:

gibberellin

HXK:

hexokinase

IAA:

indole acetic acid

JA:

jasmonate

LOX:

lipoxygenase

LTP:

lipid transfer protein

MCP:

1-methylcyclopropane

MTA:

5′-methylthioribose

NAA:

naphthaleneacetic acid

NO:

nitric oxide

ODC:

ornithine decarboxylase

PA:

polyamine

PAO:

polyamine oxidase

PAT:

polar auxin transport

PG:

polygalacturonase

PLA2 :

phospholipase A2

Put:

putrescine

ROS:

reactive oxygen species

SAM:

S-adenosyl methionine

SAMDC:

S-adenosyl methionine decarboxylase

S6PDH:

D-sorbitol-6-phosphate dehydrogenase

Spd:

spermidine

SPDS:

spermidine synthase

Spm:

spermine

TFs:

transcription factors

TPS:

trehalose-6-phosphate

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Authors and Affiliations

  1. Citrus Research Institute, Southwest University, Chongqing, 400712, P.R. China

    R. J. Xie, L. Deng, S. L. He, S. L. Yi & Y. Q. Zheng

  2. College of Life Science and Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, P.R. China

    L. Zheng

  3. College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400716, P.R.China

    L. Jing

  4. Department of Horticulture, Zhejiang University, Hangzhou, 310029, P.R.China

    Y. T. Ma

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  1. R. J. Xie
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  2. L. Deng
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  3. L. Jing
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  4. S. L. He
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  6. S. L. Yi
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  7. Y. Q. Zheng
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  8. L. Zheng
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Correspondence to L. Zheng.

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Acknowledgements: We thank Dr. Muhammad Azam and Dr. Zhan Leilei for critical reading this manuscript. This work was funded by Chongqing Key Laboratory of Citrus (CKLC201107), CUAS(Z2010SK10), MOST (2009GF1004), and Chongqing citrus major technology research (2009-02).

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Xie, R.J., Deng, L., Jing, L. et al. Recent advances in molecular events of fruit abscission. Biol Plant 57, 201–209 (2013). https://doi.org/10.1007/s10535-012-0282-0

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