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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2018.08.010
|2 doi
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|a pubmed24n0958.xml
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|a (NLM)30130740
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|a (PII)S0981-9428(18)30348-6
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Fang, Sheng
|e verfasserin
|4 aut
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| 245 |
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|a Chemical priming of seed alters cotton floral bud differentiation by inducing changes in hormones, metabolites and gene expression
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 22.10.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2018 Elsevier Masson SAS. All rights reserved.
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|a Fruiting branches and floral buds are forming well before squares are visible and determine cotton (Gossypium hirsutum L.) productivity. Pre-soaking with plant growth regulators (PGRs) affects the quantity of floral buds. However, studies illustrating the physiological mechanism of floral bud differentiation in response to PGRs are lacking. To address this, cotton seeds were primed with water (control), 5 mg L-1 gibberellic acid (GA3), 25 mg L-1 N6-benzyladenine (6-BA), and 150 mg L-1 dimethyl piperidinium chloride (DPC) respectively. Results showed that plants from seed pre-treated with GA3 and 6-BA differentiated more floral buds relative to control, while DPC application initiated less floral buds than control. GA3 and 6-BA application significantly increased the levels of zeatin riboside (ZR) by up-regulating IPT expression and gibberellic acid (GA3) but decreased the indole-3-acetic acid (IAA) content. Consequently, the ZR/IAA and GA3/IAA ratios were markedly increased, contributing to higher floral bud numbers. Contrasting results were observed for DPC treatment. Additionally, GA3 and 6-BA treatments up-regulated GhSOC1, GhMADS13 and GhAGL24 expression, which was associated with higher sucrose contents mainly attributed to higher endogenous ZR levels, inducing floral initiation. Whereas the GhMADS13 was down-regulated to suppress floral bud differentiation under DPC application. Surprisingly, the floral-associated genes were more sensitive to GA3 than 6-BA, which induced the differences in bud numbers at the beginning of flower bud differentiation. Thus, we conclude that seed pre-treated with PGRs affected hormone content, induced sugar accumulation in apical buds and regulated genes involved in floral induction, which impacted floral bud differentiation
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|a Journal Article
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|a Cotton (Gossypium hirsutum L.)
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|a Floral bud
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|a Hormones
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|a Plant growth regulators
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|a Sucrose
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|a Benzyl Compounds
|2 NLM
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|a Gibberellins
|2 NLM
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|a Piperidines
|2 NLM
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| 650 |
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|a Plant Growth Regulators
|2 NLM
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| 650 |
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|a Purines
|2 NLM
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| 650 |
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|a gibberellic acid
|2 NLM
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| 650 |
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|a BU0A7MWB6L
|2 NLM
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| 650 |
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|a benzylaminopurine
|2 NLM
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| 650 |
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|a KXG6A989PS
|2 NLM
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|a mepiquat
|2 NLM
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|a S2SFZ0Z4TW
|2 NLM
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| 700 |
1 |
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|a Gao, Kai
|e verfasserin
|4 aut
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| 700 |
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|a Hu, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Snider, John L
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Shanshan
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Binglin
|e verfasserin
|4 aut
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| 700 |
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|a Zhou, Zhiguo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 130(2018) vom: 15. Sept., Seite 633-640
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:130
|g year:2018
|g day:15
|g month:09
|g pages:633-640
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|u http://dx.doi.org/10.1016/j.plaphy.2018.08.010
|3 Volltext
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|d 130
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|h 633-640
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