Fertilization and Zygotic Embryo Development in Vitro

Kranz, Erhard; Kumlehn, Jochen; Dresselhaus, Thomas

doi:10.1007/978-3-642-59969-9_23

Cited by 3 publications

(1 citation statement)

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“…There are also evidences to show the presence of gametophytic maternal effect on embryo (and endosperm) as detailed below, although there are also evidences to indicate that the switch from material to embryonic control of development occurs after fertilization in the zygote itself in angiosperms, i.e. at a very much earlier stage of developing embryo than in animals (Kranz et al 1999 ). Two Arabidopsis mutants, emb173 and mesea ( mea ) Grossniklaus and Vielle Caldaza 1998 ), display gametophytic maternal control on seed development, if the genes are inherited through the female gametophyte.…”

Section: Maternal Genetic Controlmentioning

confidence: 94%

Post-fertilization Growth and Development

Krishnamurthy

2015

Plant Biology and Biotechnology

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Double fertilization induces not only sudden and rapid changes but also gradual and delayed changes in the ovary and ovule contained in it.These together constitute the post-fertilization changes. The ovary develops into a fruit and the ovule into a seed . The stigma and stylar portions of the gynoecium normally absciss off, as also the other fl oral parts such as stamens, petals and sepals. But in some taxa, not only one or more of these fl oral parts persist but also grow to a variable extent along with the fruit/seed in the post-fertilization phase. Often these parts infl uence the development of the fruits/seeds in a substantial way. The embryo arises from the fertilized egg and the endosperm from the central AbstractThis chapter deals with post-double-fertilization growth and development in the angiosperms, particularly emphasizing the molecular genetic aspects. The patternized development of mature embryo starts with the polarized zygote. The importance of maternal gene control on early embryogeny and on endosperm development is highlighted. The nonmaternal genetic control of embryogenesis, laying emphasis on pattern genes, and endosperm development is also discussed in detail. Particular attention is also focused on histological differentiation of the embryo, an aspect that was paid least attention in the past. The physical and chemical factors involved in fruit development and ripening are discussed; also discussed are the genetic control of fruit development and ripening. The importance of chalaza in seed development, not focused much in the past, is also detailed in this chapter.

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Section: Maternal Genetic Controlmentioning

confidence: 94%