A comparison of early molecular fertilization mechanisms in animals and flowering plants

Márton, Mihaela L.; Dresselhaus, Thomas

doi:10.1007/s00497-007-0062-8

Cited by 39 publications

(29 citation statements)

References 162 publications

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“…The continuous deposition of callose around the synergid could lead to its degradation owing to a lack of nutrition, and could also affect the expression of some genes, such as the overexpression of ZmEA1, which subsequently increases homologous protein concentration (Márton and Dresselhaus, 2008;Okuda et al, 2009). Callose may also hinder the secretion of chemical inducers from the synergid that could induce the growth of the pollen tube (Pagnussat et al, 2007), eventually resulting in female sterility in mp1 plants.…”

Section: Changes In the Dynamics Of Callose Deposition Predict Femalementioning

confidence: 99%

Altered callose deposition during embryo sac formation of multi-pistil mutant (mp1) in Medicago sativa

Zhou

Jin

et al. 2016

Genet. Mol. Res.

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ABSTRACT. Whether callose deposition is the cause or result of ovule sterility in Medicago sativa remains controversial, because it is unclear when and where changes in callose deposition and dissolution occur during fertile and sterile embryo sac formation. Here, alfalfa spontaneous multi-pistil mutant (mp1) and wild-type plants were used to compare the dynamics of callose deposition during embryo sac formation using microscopy. The results showed that both mutant and wild-type plants experienced megasporogenesis and megagametogenesis, and there was no significant difference during megasporogenesis. In contrast to the wild-type plants, in which the mature embryo sac was observed after three continuous cycles of mitosis, functional megaspores of mutant plants developed abnormally after the second round of mitosis, leading to degeneration of synergid, central, and antipodal cells. Callose deposition in both mutant and wild-type plants was first observed in the walls of megasporocytes, and then in the megaspore tetrad walls. After meiosis, the callose wall began to degrade as the functional megaspore underwent mitosis, and almost no callose was observed in the mature embryo sac in wild-type plants. However, callose deposition was observed in mp1 plants around the synergid, and increased with the development of the embryo sac, and was mainly deposited at the micropylar end. Our results indicate that synergid, central, and antipodal cells, which are surrounded by callose, may degrade owing to lack of nutrition. Callose accumulation around the synergid and at the micropylar end may hinder signals required for the pollen tube to enter the embryo sac, leading to abortion.

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Section: Changes In the Dynamics Of Callose Deposition Predict Femalementioning

confidence: 99%

Altered callose deposition during embryo sac formation of multi-pistil mutant (mp1) in Medicago sativa

Zhou

Jin

et al. 2016

Genet. Mol. Res.

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“…This mechanism is largely conserved in plants and animals. 1 We therefore speculate that each sex gamete is programmed to express surface factors that specifically regulate fusion between different sexes. Indeed, previous studies on fertilization have identified several gamete surface factors critical for gamete recognition, attachment and fusion.…”

Section: Fertilization Mechanisms Reside On the Gamete Surface Of Flomentioning

confidence: 99%

“…Indeed, previous studies on fertilization have identified several gamete surface factors critical for gamete recognition, attachment and fusion. 1,2 Mori and colleagues identified a male-specific gamete fusion factor called GENERATIVE CELL SPECIFIC 1 (GCS1), also known as HAPLESS2 (HAP2), in lily pollen generative cells. 3,4 GCS1 is a novel type I transmembrane protein, possessing an Nterminal signal sequence and a transmembrane domain.…”

Section: Fertilization Mechanisms Reside On the Gamete Surface Of Flomentioning

confidence: 99%

Gamete attachment process revealed in flowering plant fertilization

Mori

Igawa

2014

Plant Signaling & Behavior

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“…Plants and animals show the ability to use advertisement connected with reproduction. Next to these evolutionary similarities are other resemblances in reproduction between plants and animals [16] . It is peculiar that the terms expressed as placenta, ovary…”

Section: Plant Reproduction: From Phylogeny To Evolutionmentioning

confidence: 99%

Evolution of plant reproduction: From fusion and dispersal to interaction and communication

Willemse

2009

Chin. Sci. Bull.

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Based on the existing data concerning the evolution of the sexual reproduction, it is argued that the processes of sex differentiation and interactions play a key role in evolution. From the beginning environment and organism are unified. In a changing dynamic environment life originates and the interaction between life and environment develops from simple to more complex organisms. Sexual reproduction is introduced after the origin of meiosis and is a key process in evolution. The asexual reproduction process prepares to dispersal. Sexual reproduction process adds the genome renewal and the gamete-gamete interaction. Reproduction and dispersal are connected and the process of reproduction has similarities between asexual and sexual reproduction. Unicellular algae develop the physiological and morphological sex differentiation. Sex differentiation is connected with the way of dispersal. The step to multicellular plants introduces cell isolation after meiosis and by the stay on the mother plant within a cell or organ, plant-cell apoplastic interaction originates and by prolonged stay the plant-plant interaction. This stay influences the type of dispersal. A life cycle with alternation of generations and two moments of dispersal permits plants to go on land. In ferns a shift in the moment of sex differentiation to meiospore happens and the stay of the macrospore leads to the seed plants. In water all types of sexual reproduction, interactions and the alternation of generations are prepared and these are used to conquest land. On land the biotic dispersal is realized. The phylogeny of sexual reproduction reveals that the sex differentiation and interaction are the main causes in the evolution of sexual reproduction. Sexual reproduction shows interactions during gamete fusion, between organism and environment and in multicellular plants between organisms. With respect to other types of interaction as in symbiosis or the nutrient chain, interaction is considered as an important action which is based on a persisting cooperation and points to a push during evolution. The push is expressed as communication: the driving force in the evolution. Based on the interactions between organisms and interactions between organisms and the dynamic environment, communication is considered as a driving force leading to the evolution as explained in the development of plant reproduction. Consequences for reproduction, its regulation and the process of evolution are discussed.Plant reproduction, dispersal, sex differentiation, cell isolation, interaction, phylogeny, evolution, communicationAs a result of the comparison of living and extinct organisms and their embryology as well as their appearance in the earth history, it is considered that the origin of life develops in water and thereafter conquests land. From the origin of the cell and prebiotic life, unicellular organisms develop. Subsequently simple multicellular organisms arise and they develop organs with different functions. All these events happen in and are driven by a dynam...

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A comparison of early molecular fertilization mechanisms in animals and flowering plants

Cited by 39 publications

References 162 publications

Altered callose deposition during embryo sac formation of multi-pistil mutant (mp1) in Medicago sativa

Altered callose deposition during embryo sac formation of multi-pistil mutant (mp1) in Medicago sativa

Gamete attachment process revealed in flowering plant fertilization

Evolution of plant reproduction: From fusion and dispersal to interaction and communication

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