Growth Responses of Mature Endosperm in Cultures

Johri, B. M.; Bhojwani, Sant S.

doi:10.1038/2081345a0

Cited by 50 publications

(17 citation statements)

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“…Organogenesis from endosperm tissue was first reported in Exocarpus cupressiformis (a member of the family Santalaceae) by Johri and Bhojwani (1965). They obtained shoot buds all over the endosperm explant on WM supplemented with IAA, Kn and CH.…”

Section: Shoot Regenerationmentioning

confidence: 98%

“…Other additives like CH in Exocarpus cupressiformis (Johri and Bhojwani 1965), Dendrophthoe falcata (Nag and Johri 1971), Nuytsia floribunda (Nag and Johri 1971), Putrangiva roxburghii (Srivastava 1973), Hordeum vulgare (Sehgal 1974), Achras sapota (Bapat and Narayana swamy 1977), Citrus grandis (Wang and Chang 1978), Prunus persica (Liu and Liu 1980), Actinidia chinensis (Gui et al 1982), Actinidia urguta 9 A. deliciosa (Kin et al 1990) and CM in Acacia nilotica (Garg et al 1996), and Codiaeum variegatum (Gayatri 1978) were also employed by different workers. Most of the immature endosperm culture needs the presence of one or more growth regulators for plant regeneration except Petroselinum, where MS basal medium is sufficient for endosperm embryogenesis (Masuda Plant Cell Tiss Organ Cult (2008) 93:1-14 3 et al 1977.…”

Section: Plant Growth Regulators and Other Supplementsmentioning

confidence: 99%

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Endosperm culture: a novel method for triploid plant production

Thomas

Chaturvedi

2008

Plant Cell Tiss Organ Cult

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Triploid nature of endosperm is the characteristic feature of angiosperms and is formed as a result of triple fusion. Present review discusses the morphogenic response and production of triploid plantlets by endosperm culture. Both mature and immature endosperm used for culture initiation responded differently in cultures. A key factor for the induction of cell divisions in mature endosperm cultures is the initial association of embryo but immature endosperms proliferate independent of embryo. In almost all the parasitic angiosperms, endosperm shows a tendency of direct differentiation of organs without prior callusing, whereas in autotrophic taxa the endosperm usually forms callus tissue followed by differentiation of shoot buds, roots or embryos. The endosperm tissue often shows a high degree of chromosomal variations and polyploidy. Mitotic irregularities, chromosome bridges and laggards are the other important characteristics of endosperm tissues. Triploids are usually seed sterile and is undesirable for plants where seeds are commercially useful. However, in cases where seedlessness is employed to improve the quality of fruits as in banana, apple, citrus, grapes, papaya etc. the induction of triploid plants would be of immense use. Triploid plants have more vigorous vegetative growth than their diploid counterparts. Hence, in plants where the vegetative parts are economically useful, triploids are of good use. This review focuses on the progress achieved so far in endosperm culture to obtain triploid plants.

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Section: Shoot Regenerationmentioning

confidence: 98%

Section: Plant Growth Regulators and Other Supplementsmentioning

confidence: 99%

Endosperm culture: a novel method for triploid plant production

Thomas

Chaturvedi

2008

Plant Cell Tiss Organ Cult

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“…Since then, mature and immature endosperm of various species has been shown to form continuously growing calli (Bhojwani and Razdan 1996 ). Johri and Bhojwani ( 1965 ) demonstrated totipotency of endosperm for the fi rst time. They also demonstrated direct shoot formation from cultured mature endosperm of cherry ballart ( Exocarpos cupressiformis ).…”

Section: Endosperm and Origin Of Triploidsmentioning

confidence: 99%

Applications of Triploids in Agriculture

Kumar

Gupta²

2015

Plant Biology and Biotechnology

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“…In earlier publications, shoot bud formation in cultured endosperm (Johri and Bhojwani, 1965) and plant regeneration from callus derived from excised and cultured endosperm in some species were reported (reviewed in Bhojwani, 1984;Johri and Rao, 1984). Callus and suspension cultures from excised, immature maize endosperm were established (e.g., Tabata and Motoyoshi, 1965;Shannon and Lui, 1977).…”

Section: Discussionmentioning

confidence: 99%

Endosperm Development after Fusion of Isolated, Single Maize Sperm and Central Cells in Vitro

et al. 1998

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We demonstrate here the possibility of endosperm development in vitro after the fusion of pairs of an isolated sperm and an isolated central cell of maize. The occurrence of karyogamy and the time course of the fusion of sperm and central cell nuclei are presented. The fusion of the sperm nucleus occurred either with one of the two polar nuclei or with the secondary nucleus and was completed within 2 hr after in vitro cell fusion. The in vitro study of early events after cell and nuclear fusion indicates that the resulting primary endosperm cell develops into a characteristic tissue capable of self-organization apart from the mother tissue. The technology presented here opens the way for new cellular and molecular studies, especially of early events after sperm and central cell fusion. These studies should lead to a better understanding of the processes of double fertilization and endosperm development.

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Growth Responses of Mature Endosperm in Cultures

Cited by 50 publications

References 0 publications

Endosperm culture: a novel method for triploid plant production

Endosperm culture: a novel method for triploid plant production

Applications of Triploids in Agriculture

Endosperm Development after Fusion of Isolated, Single Maize Sperm and Central Cells in Vitro

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