Relevant bibliographies by topics / Gametophyt

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Gametophyt'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2025

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Journal articles on the topic "Gametophyt"

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Warne, Thomas R., and Robert M. Lloyd. "Gametophytic density and sex expression in Ceratopteris." Canadian Journal of Botany 65, no. 2 (1987): 362–65. http://dx.doi.org/10.1139/b87-046.

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Gametophytic population density influences sex expression in the fern Ceratopteris Brongn. Extensive variation occurs among gametophyte families, both in the response of sex expression to density and in the covariate (density) adjusted frequency of hermaphroditic gametophytes. These differences are probably a function of genetic variability in the antheridiogen mediation of sex expression. In general, the frequency of hermaphroditic gametophytes decreases and becomes asymptotic and more stable with increased density. Higher gametophytic densities probably promote maleness through the more rapi
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DeYoung, Brody, Todd Weber, Barbara Hass, and Jo Ann Banks. "Generating Autotetraploid Sporophytes and Their Use in Analyzing Mutations Affecting Gametophyte Development in the Fern Ceratopteris." Genetics 147, no. 2 (1997): 809–14. http://dx.doi.org/10.1093/genetics/147.2.809.

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The haploid gametophytes of the fern Ceratopteris richardii are autotrophic and develop independently of the diploid sporophyte plant. While haploid genetics is useful for screening and characterizing mutations affecting gametophyte development in Ceratopteris, it is difficult to assess whether a gametophytic mutation is dominant or recessive or to determine allelism by complementation analysis in a haploid organism. This report describes how apospory can be used to produce genetically marked polyploid sporophytes whose gametophyte progeny are heterozygous for mutations affecting sex determina
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Peterson, R. L., and D. P. Whittier. "Transfer cells in the sporophyte–gametophyte junction of Lycopodium appressum." Canadian Journal of Botany 69, no. 1 (1991): 222–26. http://dx.doi.org/10.1139/b91-031.

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The sporophyte–gametophyte interface in cultured Lycopodium appressum gametophytes consists of a sporophytic foot embedded in gametophyte tissue. Foot cells and contiguous gametophytic cells develop extensive wall ingrowths, making them transfer cells. Transfer cells in the foot of young sporophytes and in adjacent gametophyte cells have elongated, narrow wall ingrowths forming a labrynthine wall–membrane apparatus, numerous mitochondria, and plastids with variable amounts of starch. Transfer cells in older interfaces have thickened wall ingrowths, few mitochondria, plastids with numerous plas
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Chen, Dan, Yameng Wang, Wen Zhang, et al. "Gametophyte-specific DEAD-box RNA helicase 29 is required for functional maturation of male and female gametophytes in Arabidopsis." Journal of Experimental Botany 71, no. 14 (2020): 4083–92. http://dx.doi.org/10.1093/jxb/eraa190.

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Abstract The maturation of male and female gametophytes together with its impact on plant sexual reproduction has not received much attention, and the molecular mechanisms underlying the process are largely unknown. Here, we show that Arabidopsis DEAD-box RNA helicase 29 (RH29) is critical for the functional maturation of both male and female gametophytes. Homozygous rh29 mutants could not be obtained, and heterozygous mutant plants were semi-sterile. Progression of the cell cycle in rh29 female gametophytes was delayed. Delayed pollination experiments showed that rh29 female gametophytes unde
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Салтанович, Татьяна, Larisa Andronic, Ludmila Antoci, and Ana Buldumac. "The influence of temperature on variability of male gametophyt traits in the progeny of virus-infected tomato genotypes." Studia Universitatis Moldaviae. Seria Științe ale Naturii, no. 1(171) (September 2023): 21–28. http://dx.doi.org/10.59295/sum1(171)2023_03.

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The action of the thermal factor on the functionality of the male gametophyte in tomato progeny infected with tobacco mosaic virus (TMV) and tomato aspermia virus (TAV) was studied. It was established that the influence of high temperature on the male gametophyte in TMV/TAV offspring causes the modification of the functional characters of the male gametophyte. The effect produced is largely controlled by temperature 78.1...81.5% (for pollen viability), and the variation of pollen tubes sizes is determined by temperature and the interaction of factors (75.6%). The individual analysis of the str
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Davidson, Carla, Przemyslaw Prusinkiewicz, and Patrick von Aderkas. "Description of a novel organ in the gametophyte of the fern Schizaea pusilla and its contribution to overall plant architecture." Botany 86, no. 10 (2008): 1217–23. http://dx.doi.org/10.1139/b08-085.

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Plant architecture is determined by cell division and growth, thus simulation models describing these processes are ideal for determining how local development produces the overall plant form. Because fern gametophytes are structurally simple, they are ideal for investigating the effects of cellular growth and division on plant form. In this work we examine the gametophytic development of Schizaea pusilla Pursh., a small, bog-adapted fern whose gametophyte forms as a mass of single-celled filaments. Using light and scanning electron microscopy we made detailed observations of gametophyte devel
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Shimizu, K. K., and K. Okada. "Attractive and repulsive interactions between female and male gametophytes in Arabidopsis pollen tube guidance." Development 127, no. 20 (2000): 4511–18. http://dx.doi.org/10.1242/dev.127.20.4511.

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Sexual reproduction in plants, unlike that of animals, requires the action of multicellular haploid gametophytes. The male gametophyte (pollen tube) is guided to a female gametophyte through diploid sporophytic cells in the pistil. While interactions between the pollen tube and diploid cells have been described, little is known about the intercellular recognition systems between the pollen tube and the female gametophyte. In particular, the mechanisms that enable only one pollen tube to interact with each female gametophyte, thereby preventing polysperm, are not understood. We isolated female
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Maier, Vera, Dorothee Killmann, Manfred Braun, and Eberhard Fischer. "Verbreitung von Trichomanes speciosum (Hymenophyllaceae) im FFH-Gebiet "Lahnhänge"." Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens 161 (January 1, 2008): 41–50. http://dx.doi.org/10.21248/decheniana.v161.3829.

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Der Gametophyt von Trichomanes speciosum konnte im FFH-Gebiet „Lahnhänge“ in acht der 16 potenziellen Täler nachgewiesen werden. Im Ganzen wurden 20 Fundorte nachgewiesen, davon keiner direkt im Lahntal, sondern nur in Seitentälern. Die Vorkommen beschränken sich auf das Mühlbachtal (sechs Fundorte mit 25 Populationen), das Kaltbachtal (ein Fundort mit vier Populationen), das Gelbachtal (drei Fundorte mit neun Populationen), das Dörsbachtal (fünf Fundorte mit 30 Populationen), das Hasenbachtal (zwei Fundorte mit 23 Populationen), das Wasenbachtal (ein Fundort mit drei Populationen), das Schwar
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Zheng, Siyuan, Feng Wang, Zehui Liu, Hongbin Zhang, Liangsheng Zhang, and Dan Chen. "The Role of Female and Male Genes in Regulating Pollen Tube Guidance in Flowering Plants." Genes 15, no. 11 (2024): 1367. http://dx.doi.org/10.3390/genes15111367.

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In flowering plants, fertilization is a complex process governed by precise communication between the male and female gametophytes. This review focuses on the roles of various female gametophyte cells—synergid, central, and egg cells—in facilitating pollen tube guidance and ensuring successful fertilization. Synergid cells play a crucial role in attracting the pollen tube, while the central cell influences the direction of pollen tube growth, and the egg cell is responsible for preventing polyspermy, ensuring correct fertilization. The review also examines the role of the pollen tube in this c
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Sheffield, E. "Cellular aspects of the initiation of aposporous outgrowths in ferns." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 86 (1985): 45–50. http://dx.doi.org/10.1017/s0269727000007934.

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SynopsisLow temperature SEM of juvenile leaves of Pteridium aquilinum (L.) Kuhn revealed that outgrowths arise from leaf cells as soon as three days after their detachment from the plant. Such outgrowths matured into fully functional gametophytes, so it can be said that the phase change from sporophyte to gametophyte occurred during the three day interval between detachment and outgrowth protrusion. Measurement of the incorporation of tritiated uridine into leaves detached for 0–5 days indicated that RNA levels rise during the first two days of culture and subsequently decline. The significanc
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Dissertations / Theses on the topic "Gametophyt"

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Srilunchang, Kanok-orn. "Molecular characterization and identification of genes involved in maize female gametophyte development." kostenfrei, 2009. http://www.opus-bayern.de/uni-regensburg/volltexte/2009/1366/.

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Blischak, Leslie Anne. "Gametophytic Selection for Thermotolerance in Phalaenopsis." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/33989.

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Gametophytic selection was examined as a breeding tool in developing Phalaenopsis hybrids that are more cool or warm temperature tolerant. Two hybrid Phalaenopsis, P. (Taisoco Windian à Sogo Sogo Yukidian) by P. hybrid unknown, were reciprocally cross-pollinated and exposed to 14°C/9°C for 7 days as a cold pollination treatment. Plants were pollinated again and exposed to 30°C/25°C for 3 days for the warm pollination treatment. Each cultivar was placed in either of two growth chambers during the pollination treatments and exposed to the selected temperatures, an 11-h photoperiod with an
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Skelton, Chanda Lee. "Investigations into gametophyte morphology and population sex ratios through direct comparisons between laboratory-grown and field-grown fern gametophytes." [Ames, Iowa : Iowa State University], 2007.

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Resentini, F. "THE FEMALE GAMETOPHYTE: DEVELOPMENT AND FUNCTION." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/228141.

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The plant life cycle alternates the diploid sporophyte and the haploid gametophyte. The female gametophyte of flowering plants develops within the ovule, a specialized structure within the ovary, which gives rise to the seed after fertilization. Sexual reproduction in plants entails a series of developmental steps that culminate in the formation of the seed. The developing ovule protects the haploid female gametophyte, which is formed as the result of the megasporogenesis and megagametogenesis. Inside the female gametophyte, the two female gametic cells, the central and the egg cells, upon f
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Madrid, Eric. "Female gametophyte development and evolution in Piperales." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3337127.

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LEO, GIULIA. "GAMETOPHYTE AND SPOROPHYTE CROSSTALK DURING FERTILIZATION IN ARABIDOPSIS." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/565198.

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Arabidopsis thaliana seeds comprise three tissues, which are genetically and functionally distinct. However, in order to ensure a correct seed development, a communication and coordination of them is strictly necessary. The seed coat is a five-layer tissue surrounding the female gametophyte. In the stk abs double mutant only four layers form this tissue: the endothelium, the innermost one, does not differentiate. Since the endothelium is a sporophytic layer directly in contact with the gametophyte before the fertilization and with the endosperm after the fertilization, we hypothesized a pos
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Roberts, Michael Richard. "Controlling transpositon in the male gametophyte of transgenic plants." Thesis, University of Leicester, 1992. http://hdl.handle.net/2381/35341.

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Investigations were carried out to determine the feasibility of a transposon tagging experiment in flax, Linum usitatissimum. The excision of the maize transposable element Activator (Ac) from the genome of transgenic flax callus was demonstrated, whilst a Dissociation element (Ds) was found to be stable. However, reintegration of excised Ac elements was not detected, and this barrier to gene tagging led to an examination of procedures which might improve the general applicability of transposon tagging. A recombinant Ac transposase gene was constructed in order to achieve a high germinal trans
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FEDERICI, SILVIA. "Genetic mechanisms of maize development: from gametophyte to flowers." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/50226.

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Zea mays L. is one of the world’s most agronomically important crop. The understanding of the molecular basis of inflorescences architecture and seed development may be useful for agronomic purposes. The major goal of this research is to investigate different aspect of maize development to shed light on the genetic mechanisms involved in the formation of maize inflorescences as well as seed development. In the first part of my thesis, the mechanisms regulating inflorescences development have been investigated by studying a new barren mutant, barren inflorescence173 (bif173). The recessive mut
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McClelland, D. J. "Genetical studies of gametophyte development in the moss Physcomitrella patens." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233202.

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Montardy-Pausader, Josette. "Cytomorphogenese du gametophyte d'une fougere intertropicale anemia phyllitidis (l. ) sw." Paris 6, 1987. http://www.theses.fr/1987PA066536.

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Examen des processus meretiques mis en jeu et caracteristiques infrastructurales des cellules intervenant successivement au cours de l'edification du prothalle cordiforme. On montre que le developpement du prothalle presente un stade biserie caracteristique de l'ontogenese du gametophyte qui conduit a l'initiation laterale d'un meristeme marginal pluricellulaire
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Books on the topic "Gametophyt"

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Riba, Ramón. Morfología de gametofitos de helechos. Universidad Autónoma Metropolitana-Iztapalapa, 2000.

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Pérez-García, Blanca. Bibliografía sobre gametofitos de helechos y plantas afines, 1699-1996. Missouri Botanical Garden Press, 1998.

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Raine, Catherine Ann. The reproductive biology of gemmiferous filmy fern gametophytes. University of Manchester, 1994.

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Barker, Jane. The sexual expression and development "in vitro" of gametophytes of "Dryopteris filix-mas" (L) Schott and "Dryopteris dilatata" (Hoffm) A. Gray. Derbyshire College of Higher Education, 1988.

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Edward Charles B. 1866 Jeffrey. Gametophyte of Botrychium Virginianum [microform]. Creative Media Partners, LLC, 2021.

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V, Raghavan. Developmental Biology of Fern Gametophytes. Cambridge University Press, 2009.

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V, Raghavan. Developmental Biology of Fern Gametophytes. Cambridge University Press, 2011.

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Developmental biology of fern gametophytes. Cambridge University Press, 1989.

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Schön, Chris-Carolin. Gametophytic selection in barley (Hordeum vulgare L.). 1990.

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Talent, Nadia Joan. Gametophytic apomixis, hybridization, and polyploidy in Crataegus (Rosaceae). 2006.

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Book chapters on the topic "Gametophyt"

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Held, Andreas, and Manuela Held. "Bei Moosen ist der Gametophyt das dominierende Stadium." In Diversität 1 b. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55084-7_9.

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Pandey, Arun K. "Male Gametophyte." In Reproductive Biology of Angiosperms. CRC Press, 2022. http://dx.doi.org/10.1201/9781003260097-4.

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Pandey, Arun K. "Female Gametophyte." In Reproductive Biology of Angiosperms. CRC Press, 2022. http://dx.doi.org/10.1201/9781003260097-7.

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Kovaleva, Lidia. "Gametophytic Incompatibility inPetunia Hybrida: Molecular Aspects of Male Gametophyte and Female; Sporophyte Interactions." In Angiosperm Pollen and Ovules. Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2958-2_15.

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Twell, D. "Male Gametophyte Development." In Plant Developmental Biology - Biotechnological Perspectives. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02301-9_12.

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Yang, Wei-Cai. "Female Gametophyte Development." In Handbook of Seed Science and Technology. CRC Press, 2024. http://dx.doi.org/10.1201/9781003578369-3.

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Savidan, Yves. "Gametophytic Apomixis." In Current Trends in the Embryology of Angiosperms. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-1203-3_16.

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Bedinger, Patricia A., and John E. Fowler. "The Maize Male Gametophyte." In Handbook of Maize: Its Biology. Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-79418-1_4.

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Mulcahy, David L. "Gametophytic Gene Expression." In A Genetic Approach to Plant Biochemistry. Springer Vienna, 1986. http://dx.doi.org/10.1007/978-3-7091-6989-6_9.

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Lewis, D. "Gametophytic-sporophytic incompatibility." In Advances in Cellular and Molecular Biology of Plants. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-1669-7_5.

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Conference papers on the topic "Gametophyt"

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Анточ, Людмила, та Татьяна Салтанович. "Качество мужского гаметофита гибридов томата в условиях повышенной температуры". У VIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2021. http://dx.doi.org/10.53040/gppb7.2021.02.

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The aim of the research was to study the effect of high temperature on the variability of male gametophyte traits in hybrid F5 populations of tomato. Thus, it was found that the high temperature has a significant effect on the variability of the male gametophyte characteristics of tomato hybrids. For the combinations under study, it was revealed that the temperature factor and genotype are the main sources of variability of the male gametophyte traits against the background of elevated temperature. As a result of the experiments, the two most heat-resistant tomato genotypes were identified.
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Ханина, Т. П., Я. Ю. Голиванов, and Е. В. Захарова. "CYTOKININS AS POSSIBLE DETERMINANTS OF PROGRAMMED CELL DEATH OF POLLEN TUBES IN IN VITRO AND IN VIVO SYSTEMS (ON MODEL OBJECTS OF TOMATOES S. HABROCHAITES, S. PENNELLII, S. CHILENSE)." In Биотехнология в растениеводстве, животноводстве и сельскохозяйственной микробиологии. Crossref, 2022. http://dx.doi.org/10.48397/arriab.2022.22.xxii.055.

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Половое размножение покрытосеменных – очень избирательный процесс. Материнские ткани пестика способны различать собственные и чужие пыльцевые зерна, самосовместимые и самонесовместимые. Эта избирательность сопровождается огромным разнообразием клеточных поверхностей мужских и женских половых органов, и их структур. Пестик хорошо организован не только для принятия пыльцевых зерен и роста пыльцевых трубок, но и имеет механизмы, которые блокируют их рост на разных стадиях. Одну из ведущих ролей в этих процессах играют фитогормоны. Ранее в нашей группе получены убедительные доказательства того, чт
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Saltanovici, Tatiana, Larisa Andronic, and Liudmila Antoci. "Funcționalitatea gametofitului mascul la descendenții plantelor de tomate reinfectate cu virusuri." In VIIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2024. https://doi.org/10.53040/gppb8.2024.31.

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The article discusses the functionality of the male gametophyte in tomato offspring obtained from plants reinfected with Tobacco Mosaic Virus and Tomato Aspermy Virus. It was established that the plants from experimental variants showed specific responses associated with the change of the male gametophyte activity, that allows to the identification of resistant genotypes based on the established variability. According to the results of the ANOVA test, the variability of the pollen viability was primarily influenced by the genotype, which is important for the elucidation of the genetic basis of
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Салтанович, Татьяна, Людмила Анточ та А. Дончилэ. "Оценка реакции мужского гаметофита томата на действие патогенов Alternaria Spp." У International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.84.

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Research objective: to identify tomato genotypes resistant to Alternaria on variability and symptoms of male gametophyte on selective backgrounds with cultural filtrate of pathogens Alternaria spp. A set of gamete breeding techniques and genetic-statistical analysis were used in the experiments. Some patterns of the variability and heritability of traits in the tomato male gametophyte have been identified on media with filtrates of pathogens. The differences in the resistance of pollen to the filtrate influence were established; the differentiation and selection of genotypes for further breedi
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Saltanovici, Tatiana, Larisa Andronic, Ludmila Antoci, and Ana Buldumac. "Impactul infecțiilor virale asupra activității gametofitului masculin de tomate." In Scientific International Symposium "Plant Protection – Achievements and Perspectives". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2023. http://dx.doi.org/10.53040/ppap2023.57.

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Reinfection of tomato genotypes with tobacco mosaic virus or tomato aspermia virus results in a change of plant pollen productivity and male gametophyte activity. Under the influence of infection, the specificity of the genotype response for a number of functional traits of the male gametophyte was revealed. Under conditions of primary infection and reinfection, the genotype was a determining factor in the variability of pollen viability, while the change in the size of pollen tubes was mainly determined by the appearance of viruses. As a result of the experiments, two varieties Venets and Ruf
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Climenco, Oxana. "Male gametophyte of sweet and waxy corn hybrids under drought and salt stress conditions." In Scientific International Symposium “Advanced Biotechnologies - Achievements and Prospects” (VIth Edition). Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2022. http://dx.doi.org/10.53040/abap6.2022.05.

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Climenco, Oxana. "Evaluation of the effects of osmotic and salin stresses on male gametophyte of maize." In Scientific International Symposium “Advanced Biotechnologies - Achievements and Prospects” (VIth Edition). Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2022. http://dx.doi.org/10.53040/abap6.2022.06.

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Cravcenco, A. N., and O. A. Climenco. "THE EFFECT OF HIGH AND LOW TEMPERATURES ON VIABILITY AND RESISTANCE OF MAIZE MALE GAMETOPHYTE." In The All-Russian Scientific Conference with International Participation and Schools of Young Scientists "Mechanisms of resistance of plants and microorganisms to unfavorable environmental". SIPPB SB RAS, 2018. http://dx.doi.org/10.31255/978-5-94797-319-8-944-947.

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Isnaini, Y., A. Salamah, T. Ng Praptosuwiryo, and D. Darnaedi. "Spore germination and gametophyte development of Cyathea contaminans (Hook.) Copel (Cyatheaceae) under different culture media." In INTERNATIONAL CONFERENCE ON ENVIRONMENTAL, MINING, AND SUSTAINABLE DEVELOPMENT 2022. AIP, 2024. http://dx.doi.org/10.1063/5.0198936.

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Коломейцева, Г. Л., В. А. Коваль, А. С. Рябченко, and А. В. Бабоша. "MEGASPOROGENESIS AND DEVELOPMENT OF THE FEMALE GAMETOPHYTE OF THE ORCHID COELOGYNE SPECIOSA SUBSP. FIMBRIATA (J.J.SM.) GRAVENDEEL." In Биотехнология в растениеводстве, животноводстве и сельскохозяйственной микробиологии. Crossref, 2022. http://dx.doi.org/10.48397/arriab.2022.22.xxii.052.

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Орхидные (Orchidaceae Juss.) – одно из крупнейших семейств цветковых растений, насчитывающее 736 родов и более 28000 видов (Chase et al., 2015; Christenhusz, Byng, 2016). Род Coelogyne Lindl. относиться к подсемейству Epidendroideae, трибе Coelogyneae подтрибе Coelogyninae (Van den Berg, 2005), в него входят около 200 видов. Наибольшее число видов зафиксировано на островах Суматра и Калимантан (Alrich, Higgins, 2008). Некоторые виды Coelogyne используются в восточной и современной медицине в качестве лекарственных растений, из листьев Coelogyne speciosa выделены вещества с бактерицидными и фун
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Reports on the topic "Gametophyt"

1

Drews, Gary, N. Programmed Cell Death During Female Gametophyte Development. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/1014978.

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Ori, Naomi, and Jason W. Reed. Engineering parthenocarpic fruit production in tomato. United States-Israel Binational Agricultural Research and Development Fund, 2021. http://dx.doi.org/10.32747/2021.8134175.bard.

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Normally, fruits are formed only following fertilization. In tomato, fertilization is sensitive to extreme temperatures, resulting in reduced yield. Yield stability would therefore benefit from tomato varieties with parthenocarpic fruits, which develop independently of fertilization. The objective of the research was to generate parthenocarpic tomato lines by mutating PRC2 components, to investigate how PRC2 and auxin signaling regulate fruit initiation and growth, and to generate parthenocarpic lines for breeding. We reasoned that heterozygous prc2 mutations would generate parthenocarpic frui
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Ohad, Nir, and Robert Fischer. Regulation of Fertilization-Independent Endosperm Development by Polycomb Proteins. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7695869.bard.

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Arabidopsis mutants that we have isolated, encode for fertilization-independent endosperm (fie), fertilization-independent seed2 (fis2) and medea (mea) genes, act in the female gametophyte and allow endosperm to develop without fertilization when mutated. We cloned the FIE and MEA genes and showed that they encode WD and SET domain polycomb (Pc G) proteins, respectively. Homologous proteins of FIE and MEA in other organisms are known to regulate gene transcription by modulating chromatin structure. Based on our results, we proposed a model whereby both FIE and MEA interact to suppress transcri
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Beniers, J. E., S. Bras, and A. K. Werf. Cryopreservation of Ulva spp. and Saccharina latissima: : optimised protocols of cryopreservation, recovery and (long-term) regrowth of Ulva spp. and Saccharina latissima gametophytes and sporophytes. Stichting Wageningen Research, Wageningen Plant Research, Business Unit Agrosystems research, 2023. http://dx.doi.org/10.18174/640169.

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5

Ohad, Nir, and Robert Fischer. Regulation of plant development by polycomb group proteins. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7695858.bard.

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Our genetic and molecular studies have indicated that FIE a WD-repeat Polycomb group (PcG) protein takes part in multi-component protein complexes. We have shown that FIE PcG protein represses inappropriate programs of development during the reproductive and vegetative phases of the Arabidopsis life cycle. Moreover, we have shown that FIE represses the expression of key regulatory genes that promote flowering (AG and LFY), embryogenesis (LEC1), and shoot formation (KNAT1). These results suggest that the FIE PcG protein participates in the formation of distinct PcG complexes that repress inappr
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