Physiological Studies on Mosses. IV. Regeneration in Physcomitrium turbinatum

Meyer, Samuel L.

doi:10.1086/335114

Cited by 17 publications

(2 citation statements)

References 5 publications

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“…In most of the mosses, these branching patterns are responsible for the development of colonies of their mature growth form, for their maintenance and for slow colony expansion. Regeneration is a method of asexual reproduction which occurs via detached leaves (Heald 1898 ;Meyer 1942 ;Gemmell 1953 ;Longton and Greene 1979 ) in Physcomitrium turbinatum , Atrichum undulatum , Pleurozium schreberi , etc. In these plants some gametophores were budded off directly from leaves and others from secondary protonema arising from leaves.…”

Section: Asexual Reproductionmentioning

confidence: 99%

Reproductive Strategies in Bryophytes

Nath

Bansal

2015

Plant Biology and Biotechnology

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IntroductionBryophytes are the second largest group of plants after angiosperms and deserve a much more important place than they have today in biological research. They remained a neglected group of plants until the recent past in spite of their importance as model organisms in macroevolutionary population genetics and especially ecological research. Currently, Physcomitrella patens is one of the fi rst bryophytes model organisms in genomic studies with faster life cycle than Arabidopsis and is particularly advantageous because of dominant gametophyte generation. This is increasingly used for studies on development and molecular evolutionary aspects of plants. To our knowledge, this is the only nonvascular primitive plant with its genome completely sequenced. Moreover, it is currently the only land plant with effi cient gene targeting that enables gene knockout. The resulting knockout mosses are stored and distributed by the International Moss Stock Centre. Recent researches have shown the importance of mosses in transgenic pharmaceuticals production. Among its many assets, P. patens is able to produce human proteins (Hohe et al. 2002 ;Decker et al. 2003 ;Stefan et al. 2008 ) and is the only plant known used to produce the blood-clotting factor IX for pharmaceutical use. AbstractThe chapter deals with the reproductive strategies in bryophytes: both asexual and sexual reproduction, fertilization and the reasons for the failure and their further development. The various factors involved in reproduction and their effects on reproductive biology with brief information on cladistic and molecular studies on phylogeny of bryophytes based on literature are provided.

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Section: Asexual Reproductionmentioning

confidence: 99%

Reproductive Strategies in Bryophytes

Nath

Bansal

2015

Plant Biology and Biotechnology

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“…Aposporous gametophytes arose with equal facility from both. In contrast, although the inner chlorophyllous cells of the relatively more complex setae of mosses usually give rise to gametophytic tissue quite readily, proliferation from epidermal cells may occur only with difficulty (Redfearn and Meyer, 1949) or not at all (Stahl, 1876;Pringsheim, 1878;Meyer, 1942).…”

Section: Gross Morphology Of Aposporous Gametophytes-mentioning

confidence: 99%

Induced Apospory in the Liverwort Blasia Pusilla

Raudzens

Matzke

1968

American J of Botany

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Immature sporophytes of Blasia pusilla L. collected in the field were excised from the protective gametophytic tissues and cultured on a slightly modified Knop's agar substrate in microphytotrons. Under the experimental conditions the setae elongated and after 33½ to 6 weeks many began to give rise to from 1 to 20 or more aposporous outgrowths. These subsequently developed into young gametophytes. The apices were then cut off, sterilized, and grown on glucose‐mineral agar in aseptic culture. The resulting gametophytes were similar to haploid plants derived from spores in pattern and rate of growth, and in possession of rhizoids, ventral scales, lateral lobes, auricles, and stellate and discoid gemmae. They produced archegonia but no antheridia. The chromosome number of the aposporous plants was 18 in contrast to the normal haploid number of 9.

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Regeneration bei niederen Pflanzen (in physiologischer Betrachtung)

Müller‐Stoll¹

1965

Differenzierung Und Entwicklung / Differentiation and Development

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Physiological Studies on Mosses. IV. Regeneration in Physcomitrium turbinatum

Cited by 17 publications

References 5 publications

Reproductive Strategies in Bryophytes

Reproductive Strategies in Bryophytes

Induced Apospory in the Liverwort Blasia Pusilla

Regeneration bei niederen Pflanzen (in physiologischer Betrachtung)

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