Male Gametophyte Development.

McCormick, Susan P.

doi:10.1105/tpc.5.10.1265

Cited by 423 publications

(64 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1). Other accessory cells within the haploid male and female gametophytes help facilitate the pollination and fertilization processes (3,19,20). The male and female gametophytes are derived from specialized spore-forming cells within the reproductive organs of the flower (3,4,21).…”

Section: Embryos Begin the Diploid Phase Of The Higher Plant Life Cyclementioning

confidence: 99%

“…1) (2, 16-1 8). The haploid, or gametophytic, generation begins after meiosis with spores that undergo mitosis and differentiate into -either a pollen grain (male gametophyte) or an embryo sac (female gametophyte) (3,(19)(20). The pollen grain contains two sperm cells, whereas the embryo sac contains a single egg (Fig.…”

Section: Embryos Begin the Diploid Phase Of The Higher Plant Life Cyclementioning

confidence: 99%

See 1 more Smart Citation

Plant Embryogenesis: Zygote to Seed

Goldberg

Paiva

Yadegari

1994

Science

537

383

View full text Add to dashboard Cite

Most differentiation events in higher plants occur continuously in the postembryonic adult phase of the life cycle. Embryogenesis in plants, therefore, is concerned primarily with establishing the basic shoot-root body pattern of the plant and accumulating food reserves that will be used by the germinating seedling after a period of embryonic dormancy within the seed. Recent genetics studies in Arabidopsis have identified genes that provide new insight into how embryos form during plant development. These studies, and others using molecular approaches, are beginning to reveal the underlying processes that control plant embryogenesis.

show abstract

Section: Embryos Begin the Diploid Phase Of The Higher Plant Life Cyclementioning

confidence: 99%

Section: Embryos Begin the Diploid Phase Of The Higher Plant Life Cyclementioning

confidence: 99%

Plant Embryogenesis: Zygote to Seed

Goldberg

Paiva

Yadegari

1994

Science

537

383

View full text Add to dashboard Cite

show abstract

“…Production of functional male gametes depends largely on the deterioration and death of the anther tapetum, whose main functions appear to be the nurturing of microspores with cortical surface molecules and allowing pollen dispersion at maturity. The pathway of female gametogenesis frequently begins with the death of all but one reduced megaspores, while surrounding nucellar cells degenerate in concert with embryo sac expansion (Reiser and Fisher, 1993; McCormick, 1993; Barcaccia et al 2003). …”

Section: Apoptosis and Programmed Cell Deathmentioning

confidence: 99%

Characterization and Evolution of the Cell Cycle-Associated Mob Domain-Containing Proteins in Eukaryotes

Vitulo

Vezzi

Galla

et al. 2007

Evol Bioinform Online

View full text Add to dashboard Cite

Abstract:The MOB family includes a group of cell cycle-associated proteins highly conserved throughout eukaryotes, whose founding members are implicated in mitotic exit and co-ordination of cell cycle progression with cell polarity and morphogenesis. Here we report the characterization and evolution of the MOB domain-containing proteins as inferred from the 43 eukaryotic genomes so far sequenced. We show that genes for Mob-like proteins are present in at least 41 of these genomes, confi rming the universal distribution of this protein family and suggesting its prominent biological function. The phylogenetic analysis reveals fi ve distinct MOB domain classes, showing a progressive expansion of this family from unicellular to multicellular organisms, reaching the highest number in mammals. Plant Mob genes appear to have evolved from a single ancestor, most likely after the loss of one or more genes during the early stage of Viridiplantae evolutionary history. Three of the Mob classes are widespread among most of the analyzed organisms. The possible biological and molecular function of Mob proteins and their role in conserved signaling pathways related to cell proliferation, cell death and cell polarity are also presented and critically discussed.

show abstract

“…After the morphogenesis, the anther develops four lobes connected to the filament, and each lobe tissue consists of four somatic wall layers, i.e. the epidermis, the endothecium, the middle layer, and the tapetum in addition to the microspore mother cells (MMCs) within the locule (Ma 2005;McCormick 1993;Scott et al 1991).…”

Section: Introductionmentioning

confidence: 99%

An anther development F-box (ADF) protein regulated by tapetum degeneration retardation (TDR) controls rice anther development

Song

et al. 2014

Planta

View full text Add to dashboard Cite

In this study, we reported that a F-box protein, OsADF, as one of the direct targets of TDR , plays a critical role in rice tapetum cell development and pollen formation. The tapetum, the innermost sporophytic tissue of anther, plays an important supportive role in male reproduction in flowering plants. After meiosis, tapetal cells undergo programmed cell death (PCD) and provide nutrients for pollen development. Previously we showed that tapetum degeneration retardation (TDR), a basic helix-loop-helix transcription factor, can trigger tapetal PCD and control pollen wall development during anther development. However, the comprehensive regulatory network of TDR remains to be investigated. In this study, we cloned and characterized a panicle-specific expression F-box protein, anther development F-box (OsADF). By qRT-PCR and RNA in situ hybridization, we further confirmed that OsADF expressed specially in tapetal cells from stage 9 to stage 12 during anther development. In consistent with this specific expression pattern, the RNAi transgenic lines of OsADF exhibited abnormal tapetal degeneration and aborted microspores development, which eventually grew pollens with reduced fertility. Furthermore, we demonstrated that the TDR, a key regulator in controlling rice anther development, could regulate directly the expression of OsADF by binding to E-box motifs of its promoter. Therefore, this work highlighted the possible regulatory role of TDR, which regulates tapetal cell development and pollen formation via triggering the possible ADF-mediated proteolysis pathway.

show abstract

Male Gametophyte Development.

Cited by 423 publications

References 63 publications

Plant Embryogenesis: Zygote to Seed

Plant Embryogenesis: Zygote to Seed

Characterization and Evolution of the Cell Cycle-Associated Mob Domain-Containing Proteins in Eukaryotes

An anther development F-box (ADF) protein regulated by tapetum degeneration retardation (TDR) controls rice anther development

Contact Info

Product

Resources

About