Auxin type and timing of application determine the activation of the developmental program during in vitro organogenesis in apple

Yancheva, S.; Golubowicz, Sara; Fisher, Ervin; Lev‐Yadun, Simcha; Flaishman, Moshe A.

doi:10.1016/s0168-9452(03)00084-0

Cited by 53 publications

(38 citation statements)

References 30 publications

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“…Histological studies observed that cell proliferation is enhanced by TDZ with 2, 4-D rather than TDZ with IBA. Shoot organogenesis is induced by TDZ with IBA or IAA, while treatment of TDZ/2, 4-D for more than 6 days results in deterioration of shoot organgenesis (Yancheva et al, 2003). Nhut et al (2006) obtained embryogenic cells from friable calli cultured in media containing 0.2 mg/l TDZ with 1.0 mg/l NAA.…”

Section: Involvement Of Plant Growth Regulatorsmentioning

confidence: 99%

Thidiazuron: A multi-dimensional plant growth regulator

Guo¹,

Abbasi²,

Zeb³

et al. 2011

Afr. J. Biotechnol.

195

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Thidiazuron (TDZ) has gained a considerable attention during past decades due to its efficient role in plant cell and tissue culture. Wide array of physiological responses were observed in response to TDZapplication in different plant species. TDZ has shown both auxin and cytokinin like effects, although, chemically, it is totally different from commonly used auxins and cytokinins. A number of biological (physiological and biochemical) events in cells are induced or enhanced by TDZ, but the mode of action of TDZ is yet unknown. However, varieties of underlying mechanisms were revealed by reports showing how morphogenic events were induced by application of TDZ. Other reports showed that TDZ may modify endogenous plant growth regulators, either directly or indirectly and produce reactions in cell/tissue, necessary for its division/regeneration. Other possibilities include modification in cell membrane, energy levels, nutrient absorption, transport and assimilation, etc. In this review, recent advancements in TDZ application in plant sciences are discussed.

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Section: Involvement Of Plant Growth Regulatorsmentioning

confidence: 99%

Thidiazuron: A multi-dimensional plant growth regulator

Guo¹,

Abbasi²,

Zeb³

et al. 2011

Afr. J. Biotechnol.

195

View full text Add to dashboard Cite

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“…Pretreatment of the plant material with plant growth regulators have increased regeneration rate in several plant species (Burnett et al 1994;Yancheva et al 2003). In rice, 2,4-D pretreatment of explants enhanced plant regeneration (Nhut et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Auxin pretreatment promotes regeneration of sugarcane (Saccharum spp. hybrids) midrib segment explants

et al. 2006

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We have developed a new, simple, quick and genotype-independent method for direct regeneration of sugarcane using novel midrib segment explants. Our protocol involves two steps: the pretreatment of starting material on MS (Murashige and Skoog (1962) Physiol Plant 15:473-497) medium containing 3.0 mg/l 2,4-dichlorophenoxyacetic acid (2,4-D) for 8 days under continuous dark and subsequent transfer of the explants to MS medium augmented with 0.1 mg/l benzyladenine (BA) and 0.1 mg/l naphthaleneacetic acid (NAA) under light-dark conditions. On the regeneration medium, numerous globular structures appeared from the explants and subsequently differentiated into shoots. Regenerated shoots attained 2-5 cm height within 30 days of culture initiation and readily rooted on MS basal medium. Hardened plants were successfully established in the greenhouse. The regulation of sugarcane morphogenesis by auxin pretreatment is discussed.

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“…The cytokinin TDZ, used in positive regenerative responses in a wide variety of species (Hosseini-Nasr and Rashid, 2002;Yancheva et al, 2003;Matand and Prakash, 2007), acts systematically in responses linked to somatic embryogenesis (Guo et al, 2011;Faisal et al, 2014). The cytokinin KIN presents various biological properties, such as promotion of transcription, cell cycle control, calcium flux, and antioxidant activity (Barciszewski et al, 1999;Verbeke et al, 2000), however, kinetin showed no positive effects for the variables evaluated during the development of M. ligustroides lateral buds.…”

Section: Discussionmentioning

confidence: 99%