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cephaloziella massalongoi/atrophy
Врската е зачувана во таблата со исечоци
12 резултати
Ultrastructure and development of the gametophyte vaginula-sporophyte foot complex in the liverwort Targionia hypophylla L.
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The development of the placental complex including the gametophyte vaginula and the bulbous foot of the sporophyte in the liverwort Targionia hypophylla L. (Marchantiales) was studied by transmission electron microscopy. The vaginula and foot are separated by an intervening space and each consist of
Evolution of a pseudogene: exclusive survival of a functional mitochondrial nad7 gene supports Haplomitrium as the earliest liverwort lineage and proposes a secondary loss of RNA editing in Marchantiidae.
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Gene transfer from the mitochondrion into the nucleus is a corollary of the endosymbiont hypothesis. The frequent and independent transfer of genes for mitochondrial ribosomal proteins is well documented with many examples in angiosperms, whereas transfer of genes for components of the respiratory
Two types of plastid ftsZ genes in the liverwort Marchantia polymorpha.
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Two types of ftsZ genes (MpftsZ1 and MpftsZ2) were isolated from the liverwort Marchantia polymorpha by degenerate reverse transcription PCR. The MpFtsZ1 and MpFtsZ2 proteins are predicted to localize in chloroplasts. Genomic Southern analysis suggested that each ftsZ gene is a single-copy nuclear
Enhanced expression of a calcium-dependent protein kinase from the moss Funaria hygrometrica under nutritional starvation.
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Among the downstream targets of calcium in plants, calcium-dependent protein kinases (CDPKs) form an interesting class of kinases which are activated by calcium binding. They have been implicated in a diverse array of responses to hormonal and environmental stimuli. In order to dissect the role of
Non-LTR retrotransposons (LINEs) as ubiquitous components of plant genomes.
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During the course of work aimed at isolating a rice gene from Oryza australiensis by PCR, the oligonucleotide primers used were found to generate a fragment that showed sequence homology to the endonuclease (EN) region of the maize non-LTR retrotransposon (LINE) Cin4. We carried out further PCRs
Identification and phylogenetic analysis of gypsy-type retrotransposons in the plant kingdom.
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PCR was performed with degenerate primers which hybridized to the homologous sequences in the reverse transcriptase (rt) genes of gypsy-type retrotransposons from rice (RIRE3, RIRE8 and RIRE2), using total DNA samples from various plants (monocots, dicots, pine, ginkgo, horsetail, liverwort and
Cloning, analysis and inactivation of the ndhK gene encoding a subunit of NADH quinone oxidoreductase from Anabaena PCC 7120.
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The function of the type-1 pyridine nucleotide dehydrogenase (NDH-1) in the cyanobacterium Anabaena PCC 7120 was investigated. Immunological analysis with antibodies raised against NdhK from Synechocystis PCC 6803, a subunit of NDH-1, showed that NdhK in Anabaena PCC 7120 is only present on the
Plagiochasma appendiculatum as a biotest for water quality assessment.
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A thalloid pathogen-free liverwort, Plagiochasma appendiculatum, was exposed to different pollution stresses, especially heavy metals, synthesized in the laboratory, to simulate pollutants reported to occur in industrial areas. The plant was found to be sensitive to mercury and copper. Thallus
On the plastids, mitochondria, and other cell constituents during oogenesis of a plant.
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In the liverwort Sphaerocarpus donnellii Aust., the behavior of the cell constituents, especially of mitochondria and plastids, was studied by electron microscopy during the development of the egg and its preceding cells. A degeneration and elimination of mitochondria and plastids was not found in
Organization of ribosomal protein genes rpl23, rpl2, rps19, rpl22 and rps3 on the Euglena gracilis chloroplast genome.
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The nucleotide sequence (4,814 bp) was determined for a cluster of five ribosomal protein genes and their DNA flanking regions from the chloroplast genome of Euglena gracilis. The genes are organized as rpl23-150 bp spacer-rpl2-59 bp spacer-rps19-110 bp spacer-rpl22-630 bp spacer-rps3. The genes are
The mitochondrial phylogeny of land plants shows support for Setaphyta under composition-heterogeneous substitution models.
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Congruence among analyses of plant genomic data partitions (nuclear, chloroplast and mitochondrial) is a strong indicator of accuracy in plant molecular phylogenetics. Recent analyses of both nuclear and chloroplast genome data of land plants (embryophytes) have, controversially, been shown to
Nuclear protein phylogenies support the monophyly of the three bryophyte groups (Bryophyta Schimp.).
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Unraveling the phylogenetic relationships between the four major lineages of terrestrial plants (mosses, liverworts, hornworts, and vascular plants) is essential for an understanding of the evolution of traits specific to land plants, such as their complex life cycles, and the evolutionary
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