Stem Tuber
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Growth analysis of potato genotypes
ABSTRACT Analyzes of plant growth throughout the crop vegetative cycle are important to know the dynamics of the plant development. Thus the objective of this work was to study the development of potato genotypes throughout the crop cycle, in three environments. Experiments were conducted in Canoinhas-SC, Pelotas-RS, and Brasília-DF, Brazil, in the 2018 cro
Rev. Ceres. Publicado em: 2020-06
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2. Índices de nitrogênio na planta e produção de batata-semente básica influenciados pelo parcelamento do fertilizante nitrogenado / Nitrogen plant index and production of basic seed potatoes influenced by the subdivision of the nitrogen fertilizer
This study aimed to evaluate the effect of dose and mode of division of the nitrogen fertilizer on plant characteristics, in the potato reference leaf and production in three seasons of the crop cycle and the production of tubers at harvest. Additionally it was aimed to select among the characteristics evaluated, possible indexes for the status of plant nitr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011
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3. Diversidade morfoanatômica das estruturas subterrâneas de Arrojadoa Britton &Rose (Cactoideae, Cactaceae) / Morpho-anatomical diversity of the subterranean structures of Arrojadoa Britton &Rose (Cactoideae, Cactaceae)
Os diferentes taxa de Arrojadoa exibem uma variedade de estruturas subterrâneas, tanto de origem caulinar como radicular. O desenvolvimento de estruturas subterrâneas de origem caulinar em Arrojadoa é uma característica única entre as Cactaceae do leste do Brasil. No entanto, não há estudos sobre a diversidade morfológica das estruturas subterrâneas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
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4. DEVELOPMENT, GROWTH, AND YIELD OF CASSAVA AS A FUNCTION OF PLANTING DATE / DESENVOLVIMENTO, CRESCIMENTO E PRODUTIVIDADE DA MANDIOCA EM FUNÇÃO DE DATAS DE PLANTIO
Cassava (Manihot esculenta Crantz) is a native plant of Brazil and the base of multiple products, iincluding ethanol. Rio Grande do Sul State is a minor producer of cassava in Brazil, especially in the Central Region of the State. The objective of Chapter I in this Dissertation was to determine the phyllochron, the final leaf number (FLN) on the main stem (M
Publicado em: 2009
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5. Wounding induces the first enzyme of the shikimate pathway in Solanaceae
The first enzyme of the shikimate pathway, 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase (EC 4.1.2.15), is induced by wounding potato or tomato tissue. The increase in enzyme activity is associated with elevated amounts of the enzyme as determined by immunoblots. The specific wound-induced protein synthesis is preceded by an increase in the mRNA encod
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6. Suppression of a Vegetative MADS Box Gene of Potato Activates Axillary Meristem Development1
Potato MADS box 1 (POTM1) is a member of the SQUAMOSA-like family of plant MADS box genes isolated from an early stage tuber cDNA library. The RNA of POTM1 is most abundant in vegetative meristems of potato (Solanum tuberosum), accumulating specifically in the tunica and corpus layers of the meristem, the procambium, the lamina of new leaves, and newly forme
American Society of Plant Biologists.
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7. Expression of a tuber-specific storage protein in transgenic tobacco plants: demonstration of an esterase activity
A chimaeric gene composed of the 5' upstream region of STLS1, a leaf/stem specifically expressed gene from Solanum tuberosum, and the RNA-coding as well as the 3' downstream region of patatin, the major storage protein of potato tubers, has been transferred into tobacco plants using the Agrobacterium system. The introduction of this gene led to a leaf/stem s
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8. Mutational analysis of potato spindle tuber viroid reveals complex relationships between structure and infectivity
Viroids are single-stranded, covalently closed circular RNA pathogens that can be isolated from certain higher plants afflicted with specific diseases. Their small size (246-375 nucleotides; Mr 0.8-1.3 × 105) and ability to replicate autonomously make viroids a unique model system in which to study the relationships between the structure of an RNA and its b
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9. Interacting Transcription Factors from the Three-Amino Acid Loop Extension Superclass Regulate Tuber Formation1
Using the yeast (Saccharomyces cerevisiae) two-hybrid system and a potato (Solanum tuberosum) KNOX protein, designated POTH1, as bait, we have identified seven distinct interacting proteins from a stolon library of potato. All seven cDNAs are members of the BEL1-like family of transcription factors. Among these proteins, there are at least four regions
The American Society for Plant Biologists.
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10. Isolation of a Gene Encoding a Copper Chaperone for the Copper/Zinc Superoxide Dismutase and Characterization of Its Promoter in Potato
Gene expression during the potato (Solanum tuberosum) tuber lifecycle was monitored by cDNA-amplified fragment-length polymorphism, and several differentially expressed transcript-derived fragments were isolated. One fragment, named TDFL431, showed high homology to a copper (Cu) chaperone for Cu/zinc superoxide dismutase (CCS). The Ccs protein is responsible
The American Society for Plant Biologists.
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11. Both developmental and metabolic signals activate the promoter of a class I patatin gene
Patatin is one of the major soluble proteins in potato tubers and is encoded by a multigene family. Based on structural considerations two classes of patatin genes are distinguished. The 5′-upstream regulatory region of a class I gene contained within a 1.5 kb sequence is essential and sufficient to direct a high level of tuber-specific gene activity which
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12. Grapevine yellow speckle viroid: structural features of a new viroid group.
A single stranded circular RNA was isolated from grapevines infected with yellow speckle disease. The RNA which we have called grapevine yellow speckle viroid (GYSV), contains 367 nucleotide residues and has the potential to form the rod-like secondary structure characteristic of viroids. GYSV has 37% sequence homology with the recently described apple scar