Mitochondrial regulation of flower development

Carlsson, Jan‐Otto; Leino, Matti W.; Sohlberg, Joel J.; Sundström, Jens F.; Glimelius, Kristina

doi:10.1016/j.mito.2007.09.006

Cited by 96 publications

(59 citation statements)

References 124 publications

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“…1 D-G). Such N. tabacum plants are called alloplasmic substitution lines for carrying an alien cytoplasm and are cytoplasmic male sterile (CMS) because they inherit male sterility only from the maternal parent (13). We reasoned that movement of Nicotiana sylvestris mitochondria into CMS cells should restore anther morphology and pollen production, a change that is easy to detect in plants even if restricted to a few flowers.…”

mentioning

confidence: 99%

Cell-to-cell movement of mitochondria in plants

Gurdon

Sváb

Feng

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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We report cell-to-cell movement of mitochondria through a graft junction. Mitochondrial movement was discovered in an experiment designed to select for chloroplast transfer from Nicotiana sylvestris into Nicotiana tabacum cells. The alloplasmic N. tabacum line we used carries Nicotiana undulata cytoplasmic genomes, and its flowers are male sterile due to the foreign mitochondrial genome. Thus, rare mitochondrial DNA transfer from N. sylvestris to N. tabacum could be recognized by restoration of fertile flower anatomy. Analyses of the mitochondrial genomes revealed extensive recombination, tentatively linking male sterility to orf293, a mitochondrial gene causing homeotic conversion of anthers into petals. Demonstrating cell-to-cell movement of mitochondria reconstructs the evolutionary process of horizontal mitochondrial DNA transfer and enables modification of the mitochondrial genome by DNA transmitted from a sexually incompatible species. Conversion of anthers into petals is a visual marker that can be useful for mitochondrial transformation.

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mentioning

confidence: 99%

Cell-to-cell movement of mitochondria in plants

Gurdon

Sváb

Feng

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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“…Surprisingly, such genes are not only abundant in many fertile plants, such as Arabidopsis thaliana Unseld et al, 1997), Beta vulgaris (Kubo et al, 2000), Oryza sativa (Notsu et al, 2002), Brassica napus (Handa, 2003), Zea mays (Clifton et al, 2004), Triticum aestivum (Ogihara et al, 2005), and Nicotiana tabacum (Sugiyama et al, 2005), but are also constitutively expressed. Research into this phenomenon has revealed much about the distribution and occurrence of CMS, the tissue-specificity of the phenotype (male gametophytic tissues only) (Jing et al, 2012;Hu et al, 2014), the modes of action behind CMS, and the cytonuclear cooperation that suppresses the phenotype (Carlsson et al, 2008). As more genomes (both nuclear and mitochondrial) and other "-omic" data become available (Du et al, 2016;Jacoby et al, 2016;Wang et al, 2016), the potential for increasing our understanding and manipulating this vitally important phenomenon will be enhanced.…”

Section: Discussionmentioning

confidence: 99%

“…CMS is also important in specifying gynodioecy in natural populations (Hanson and Bentolila, 2004;Miller and Bruns, 2016), a phylogenetically widespread reproductive strategy in flowering plants. CMS has been detected in more than 150 species (Carlsson et al, 2008), and gynodioecy may occur in as many as 7% of angiosperm species (Ornduff, 1986;Budar and Pelletier, 2001;McCauley and Bailey, 2009). Not only does CMS confer a prominent breeding system (second only to hermaphrodism [Budar and Pelletier, 2001]), but it also has led to significant gains in agriculture mediated by heterosis in crop plants and large-scale commercial production of F 1 hybrid seed (Havey, 2004;Chen and Liu, 2014;Bohra et al, 2016).…”

Section: Plant Mitochondrial Genome Evolution and Cytoplasmic Male Stmentioning

confidence: 99%

Plant Mitochondrial Genome Evolution and Cytoplasmic Male Sterility

Chen

Zhao

et al. 2017

Critical Reviews in Plant Sciences

128

116

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“…Various independent mitochondrial mutations have been demonstrated to cause CMS in several species, resulting in incompatibility of organellar gene expression with the nuclear genome and disrupted pollen development in turn. The role of the mitochondrion in flower development and CMS has recently been reviewed (27). Also, female gametophyte …”

Section: Sterilitymentioning

confidence: 99%

Mitochondrial Energy and Redox Signaling in Plants

Schwarzländer

Finkemeier

2013

Antioxidants & Redox Signaling

155

110

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Significance: For a plant to grow and develop, energy and appropriate building blocks are a fundamental requirement. Mitochondrial respiration is a vital source for both. The delicate redox processes that make up respiration are affected by the plant's changing environment. Therefore, mitochondrial regulation is critically important to maintain cellular homeostasis. This involves sensing signals from changes in mitochondrial physiology, transducing this information, and mounting tailored responses, by either adjusting mitochondrial and cellular functions directly or reprogramming gene expression. Recent Advances: Retrograde (RTG) signaling, by which mitochondrial signals control nuclear gene expression, has been a field of very active research in recent years. Nevertheless, no mitochondrial RTG-signaling pathway is yet understood in plants. This review summarizes recent advances toward elucidating redox processes and other bioenergetic factors as a part of RTG signaling of plant mitochondria. Critical Issues: Novel insights into mitochondrial physiology and redoxregulation provide a framework of upstream signaling. On the other end, downstream responses to modified mitochondrial function have become available, including transcriptomic data and mitochondrial phenotypes, revealing processes in the plant that are under mitochondrial control. Future Directions: Drawing parallels to chloroplast signaling and mitochondrial signaling in animal systems allows to bridge gaps in the current understanding and to deduce promising directions for future research. It is proposed that targeted usage of new technical approaches, such as quantitative in vivo imaging, will provide novel leverage to the dissection of plant mitochondrial signaling.

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Mitochondrial regulation of flower development

Cited by 96 publications

References 124 publications

Cell-to-cell movement of mitochondria in plants

Cell-to-cell movement of mitochondria in plants

Plant Mitochondrial Genome Evolution and Cytoplasmic Male Sterility

Mitochondrial Energy and Redox Signaling in Plants

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