ArticlePlant physiology2003
Expression of the apyrase-like APY1 genes in roots of Medicago truncatula is induced rapidly and transiently by stress and not by Sinorhizobium meliloti or Nod factors.
Article in Plant physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 30 citations in OpenAlex.
- Apyrase in horticultural crops: insights into growth, stress adaptation and quality regulation.Molecular horticulture · 2025Review
- Genome-Wide Analysis of Soybean Apyrase Gene Family and Functional Characterization of GmAPY1-4 Responses to Aluminum Stress.International journal of molecular sciences · 2025Article
- Article
- Rice LecRK5 phosphorylates a UGPase to regulate callose biosynthesis during pollen development.Journal of experimental botany · 2020Article
- AProceedings of the National Academy of Sciences of the United States of America · 2019Article
- Article
- Rhizobial and mycorrhizal symbioses in Lotus japonicus require lectin nucleotide phosphohydrolase, which acts upstream of calcium signaling.Plant physiology · 2013Article
- Immunohistochemical localization of apyrase during initial differentiation and germination of pea seeds.Planta · 2009Article
- Dissection of symbiosis and organ development by integrated transcriptome analysis of lotus japonicus mutant and wild-type plants.PloS one · 2009Article
- Microarray analyses reveal that plant mutagenesis may induce more transcriptomic changes than transgene insertion.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Developmental defects and seedling lethality in apyrase AtAPY1 and AtAPY2 double knockout mutants.Plant molecular biology · 2007Article
- Article
- Long term transcript accumulation during the development of dehydration adaptation in Cicer arietinum.Plant physiology · 2004Article
- Evolution and microsynteny of the apyrase gene family in three legume genomes.Molecular genetics and genomics : MGG · 2003Article
- Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The model legume Medicago truncatula contains at least six apyrase-like genes, five of which (MtAPY1;1, MtAPY1;2, MtAPY1;3, MtAPY1;4, and MtAPY1;5) are members of a legume-specific family, whereas a single gene (MtAPY2) has closer homologs in Arabidopsis. Phylogenetic analysis has revealed that the proteins encoded by these two plant gene families are more similar to yeast (Saccharomyces cerevisiae) GDA1 and to two proteins encoded by newly described mammalian genes (ENP5 and 6) than they are to mammalian CD39- and CD39-like proteins. Northern analyses and analyses of the frequencies of expressed sequence tags (ESTs) in different cDNA libraries suggest that in roots, leaves, and flowers, the more highly expressed genes are MtAPY1;3/MtAPY2, MtAPY1;3/MtAPY1;5 and MtAPY1;2/MtAPY1;3 respectively. In roots, at least four of the MtAPY1 genes are induced transiently within 3 to 6 h by a stress response that seems to be ethylene independent because it occurs after treatment with an ethylene synthesis inhibitor and also in the skl ethylene-insensitive mutant. This response also occurs in roots of the following symbiotic mutants: dmi1, dmi2, dmi3, nsp, hcl, pdl, lin, and skl. No evidence was obtained for a rapid, transient, and specific induction of the MtAPY genes in roots in response to rhizobia or rhizobial lipochitooligosaccharidic Nod factors. Thus, our data suggest that the apyrase-like genes, which in several legumes have been implicated to play a role in the legume-rhizobia symbiosis (with some members being described as early nodulin genes), are not regulated symbiotically by rhizobia in M. truncatula.
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