Regulation of Somatic Embryogenesis in Higher Plants

Yang, Xiyan; Zhang, Xianlong

doi:10.1080/07352680903436291

Cited by 290 publications

(227 citation statements)

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“…SE is one form of asexual reproduction by which somatic cells, under suitable induction conditions, undergo a complete genome shift and embark into a new developmental pathway ending in the formation of asexual embryos morphologically identical to their zygotic counterparts (Zimmerman, 1993;Schmidt et al, 1997;Arnold et al, 2002;Feher et al, 2003). During this unique developmental process, cells have to dedifferentiate, activate cell division, and reprogram their physiology, metabolism, and gene expression patterns (Yang and Zhang, 2010). Thus, SE is an ideal demonstration of plant totipotency, which represents how a somatic cells contain the essential genetic draft for complete plant development without fertilization (Zimmerman, 1993 Kamle et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Recurrent Somatic Embryogenesis and Plantlet Regeneration in Psidium guajava L.

Bajpai

Kalim

Chandra

et al. 2016

Braz. arch. biol. technol.

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Section: Introductionmentioning

confidence: 99%

Recurrent Somatic Embryogenesis and Plantlet Regeneration in Psidium guajava L.

Bajpai

Kalim

Chandra

et al. 2016

Braz. arch. biol. technol.

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“…Summary of extracellular chitinase profiles in cultivation media of Pinus nigra cell lines with different embryogenic potential (EP). [45]. Until now, some protein markers for embryogenic potential were described [16,24,25,[46][47][48][49][50][51], as well as a structural marker of embryogenic competency and regeneration ability [52].…”

Section: Discussionmentioning

confidence: 99%

The role of chitinases and glucanases in somatic embryogenesis of black pine and hybrid firs

et al. 2013

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Glucanase and chitinase enzymes play an important role in different plant processes including defense against pathogens and morphogenesis. Moreover, their role in the processes of somatic embryogenesis has been demonstrated. It has been suggested, that the presence of this type of proteins might be a marker for embryogenic potential of callus cultures. In this work we screened for the presence of glucanases and chitinases in liquid growth media of a set of conifer embryogenic cell lines in order to find correlation with their embryogenic potential. We have found that none of the 12 chitinase isoforms detected in culture media of Pinus nigra Arn. or the nine chitinases detected in media with Abies alba × A. cephalonica and Abies alba × A. numidica embryogenic tissues could be linked to their embryogenic capacity. Similarly, none of the six glucanase isoforms detected in the extracellular fluid of Pinus nigra Arn. cultures can be assigned as a marker of embryogenic potential. Thus, our data indicate the large variability and doubtless importance of glucanases and chitinases for cell growth and development of somatic embryos, however, do not support the premise that they are markers of embryogenesis.

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“…SE begins with a transition of somatic cells to an embryogenic state and it can be induced under certain in vitro conditions. The mechanisms which determine SE induction -the transition of cells from the vegetative to the embryogenic state and the conditions underlying such changes -are the main questions of developmental biology (for a review see: de Jong et al, 1993;von Arnold et al, 2002;Fehér et al, 2003;Namasivayam, 2007;Yang & Zhang, 2010).…”

Section: Introductionmentioning

confidence: 99%