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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2018.08.011
|2 doi
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|a pubmed24n0958.xml
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|a (DE-627)NLM287643670
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|a (NLM)30125759
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|a (PII)S0981-9428(18)30349-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zavala-García, Laura E
|e verfasserin
|4 aut
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|a Starch accumulation is associated with active growth in A. tequilana
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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 Transcriptome analysis of different tissues and developmental stages of A. tequilana plants led to the identification of full length cDNAs and the corresponding amino acid sequences for enzymes involved in starch metabolism in this species. Comparison with sequences from other species confirmed the identities of putative A. tequilana starch metabolism genes and uncovered differences in the evolutionary patterns of these genes between gramineous and non-gramineous monocotyledons. In silico expression patterns showed high levels of expression of starch metabolism genes in shoot apical meristem tissue and histological studies showed the presence of starch in leaf primordia surrounding the shoot apical meristem and in the primary thickening meristem of the stem. Starch was also found to accumulate significantly in developing floral organs and immature embryos. Low levels of starch were observed overall in leaf tissue with the exception of stomatal guard cells where starch was abundant. In root tissue, starch was only observed in statoliths at the root tip. A. tequilana starch grains were found to be small in comparison to other species and have an almost spherical form. The data for gene expression and histological localization are consistent with a role for starch as a transient carbohydrate store for actively growing tissues in A. tequilana
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|a Journal Article
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|a A. tequilana
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|a Histological analysis
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|a In silico expression
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|a Primary thickening meristem
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|a SAM
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|a Starch metabolism
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|a Starch
|2 NLM
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|a 9005-25-8
|2 NLM
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|a Sánchez-Segura, Lino
|e verfasserin
|4 aut
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|a Avila de Dios, Emmanuel
|e verfasserin
|4 aut
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|a Pérez-López, Arely
|e verfasserin
|4 aut
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| 700 |
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|a Simpson, June
|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: 30. Sept., Seite 623-632
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:130
|g year:2018
|g day:30
|g month:09
|g pages:623-632
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|u http://dx.doi.org/10.1016/j.plaphy.2018.08.011
|3 Volltext
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