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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erp169
|2 doi
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|a pubmed24n1340.xml
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|a (DE-627)NLM188826491
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|a (NLM)19474088
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Welham, Tracey
|e verfasserin
|4 aut
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|a A cytosolic invertase is required for normal growth and cell development in the model legume, Lotus japonicus
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|c 2009
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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 02.12.2009
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|a Date Revised 22.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Neutral/alkaline invertases are a subgroup, confined to plants and cyanobacteria, of a diverse family of enzymes. A family of seven closely-related genes, LjINV1-LjINV7, is described here and their expression in the model legume, Lotus japonicus, is examined. LjINV1 previously identified as encoding a nodule-enhanced isoform is the predominant isoform present in all parts of the plant. Mutants for two isoforms, LjINV1 and LjINV2, were isolated using TILLING. A premature stop codon allele of LjINV2 had no effect on enzyme activity nor did it show a visible phenotype. For LjINV1, premature stop codon and missense mutations were obtained and the phenotype of the mutants examined. Recovery of homozygous mutants was problematic, but their phenotype showed a severe reduction in growth of the root and the shoot, a change in cellular development, and impaired flowering. The cellular organization of both roots and leaves was altered; leaves were smaller and thicker with extra layers of cells and roots showed an extended and broader zone of cell division. Moreover, anthers contained no pollen. Both heterozygotes and homozygous mutants showed decreased amounts of enzyme activity in nodules and shoot tips. Shoot tips also contained up to a 9-fold increased level of sucrose. However, mutants were capable of forming functional root nodules. LjINV1 is therefore crucial to whole plant development, but is clearly not essential for nodule formation or function
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Protein Isoforms
|2 NLM
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| 650 |
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|a beta-Fructofuranosidase
|2 NLM
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| 650 |
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7 |
|a EC 3.2.1.26
|2 NLM
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| 700 |
1 |
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|a Pike, Jodie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Horst, Irmtraud
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Flemetakis, Emmanouil
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Katinakis, Panagiotis
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kaneko, Takakazu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sato, Shusei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tabata, Satoshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Perry, Jillian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Parniske, Martin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Trevor L
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 60(2009), 12 vom: 22., Seite 3353-65
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:60
|g year:2009
|g number:12
|g day:22
|g pages:3353-65
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erp169
|3 Volltext
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|d 60
|j 2009
|e 12
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|h 3353-65
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