2016
DOI: 10.1016/j.semcdb.2016.07.024
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Cell fusion and nuclear fusion in plants

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Cited by 22 publications
(15 citation statements)
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“…These results were further confirmed by CAP treatment of WT seeds because CAP caused the translational dysfunction of mitochondrial-encoded protein (Xie et al, 2012). These results are in accordance with previous studies, which showed that nuclear- or mitochondria-encoded gene mutations affecting mitochondrial functions, such as transcription, protein synthesis, and oxidative phosphorylation, affected ROS levels in developing gametophytes, thereby adversely affecting gametophyte and polar nuclei fusion during seed development (Maruyama et al, 2016; Pratibha et al, 2017). Our results suggest that AtERG2 promotes early seed development by affecting the maturation of the mitochondria ribosome small subunit and the mitochondrial protein translation in Arabidopsis , which highlights the role of mitochondrial ROS homeostasis in earlier seed development.…”
Section: Discussionsupporting
confidence: 93%
“…These results were further confirmed by CAP treatment of WT seeds because CAP caused the translational dysfunction of mitochondrial-encoded protein (Xie et al, 2012). These results are in accordance with previous studies, which showed that nuclear- or mitochondria-encoded gene mutations affecting mitochondrial functions, such as transcription, protein synthesis, and oxidative phosphorylation, affected ROS levels in developing gametophytes, thereby adversely affecting gametophyte and polar nuclei fusion during seed development (Maruyama et al, 2016; Pratibha et al, 2017). Our results suggest that AtERG2 promotes early seed development by affecting the maturation of the mitochondria ribosome small subunit and the mitochondrial protein translation in Arabidopsis , which highlights the role of mitochondrial ROS homeostasis in earlier seed development.…”
Section: Discussionsupporting
confidence: 93%
“…Analyzing oiwa mutants of Arabidopsis, Martin et al (2013) reported that mitochondrial MnSOD modulation of ROS plays a key role in female gametophyte development. Similarly, nuclear gene mutations affecting mitochondrial functions such as transcription, protein synthesis, and oxidative phosphorylation have been shown to affect polar nuclei fusion (Maruyama et al, 2016). This study shows, to our knowledge for the first time, that disturbance of the heme biosynthesis pathway leads to increased ROS accumulation in developing gametophytes, thereby adversely affecting gametophyte and seed development.…”
Section: Discussionmentioning
confidence: 61%
“…Several mutants showing defects in polar nuclei fusion have been identified (Maruyama et al, 2010(Maruyama et al, , 2016.…”
mentioning
confidence: 99%
“…Double fertilization in vascular plants involves three cellular fusions and three nuclear fusions as sperm fertilize egg sacs (Maruyama et al ., ; Dresselhaus et al ., ). Omics and genetic approaches have successfully discovered critical players in which mutations abolish nuclear/organellar fusions during plant fertilization, and have revealed how intricately these events relate to embryo and endosperm development (Maruyama et al ., , ; Takahashi et al ., ); however, a complex network of multiple events makes it difficult to investigate the molecular mechanisms of individual cellular events. Our study offers a unique experimental system where the diploidization process can be easily tracked with labeled sexual gametes in the developing zygotes.…”
Section: Discussionmentioning
confidence: 99%