Whole-Plant Regeneration via Epidermal Cells in the Axis of the Early Devonian Rhynie Chert Plant Rhynia gwynne-vaughanii Kidston et Lang
Whole-Plant Regeneration via Epidermal Cells in the Axis of the Early Devonian Rhynie Chert Plant Rhynia gwynne-vaughanii Kidston et Lang
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早期泥盆世 Rhynie Chert 植物 Rhynia gwynne-vaughanii Kidston et Lang 轴表皮细胞的全株再生
DOI:
10.1086/686243
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发表时间:
2016
影响因子:
2.3
通讯作者:
Kearney
中科院分区:
文献类型:
--
作者:
Kearney
Premise of research. The Early Devonian Rhynie chert is an invaluable source for studying the morphology, ecology, and life cycles of early land plants, but information regarding morphological development in the Rhynie chert plants is sorely lacking.Methodology. Serial petrographic thin sectioning of the Rhynie chert reveals asexual propagules developing from the epidermal cells in the axes of the plantRhynia gwynne-vaughanii. Three distinct developmental stages recording the formation of stomata, rhizoids, apical growth, and vascular tissue were observed. Similar propagules are also found developing from hemispherical projections, also on the axes ofRhynia.Pivotal results. The developmental pattern resembles that seen in somatic embryogenesis, a form of asexual reproduction that occurs naturally in extant plants as well as in in vitro, producing nutritionally independent plantlets from somatic plant cells.Conclusions. Our new observations on these propagules significantly contribute to a better understanding of how the tissues and organs of one of the earliest land plants formed. They allow us to compare the ontogeny ofR. gwynne-vaughaniiwith that of extant land plant groups and demonstrate a form of asexual reproduction conserved over millions of years of plant evolution.
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影响因子:
2.7
作者:
Darren F. Mark;C. M. Rice;N. Trewin
通讯作者:
N. Trewin
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
S. E. Chia;V. Raghavan
通讯作者:
V. Raghavan
DOI:
10.1139/b93-183
发表时间:
1993-11-01
期刊:
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE
影响因子:
--
作者:
GOODE, JA;STEAD, AD;DUCKETT, JG
通讯作者:
DUCKETT, JG
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
R. Chopra;A. Kapur
通讯作者:
A. Kapur
影响因子:
4.3
作者:
E. Schnepf;C. Reinhard
通讯作者:
C. Reinhard