scholarly journals Efficient In Vitro Somatic Embryogenesis and Plant Regeneration from Mature and Immature Embryos of Wheat ( Triticum aestivum L.)

Author(s):  
Roghayeh Ahmadpour ◽  
Nasser Zare ◽  
Rasool Asghari-Zakarta ◽  
Parisa Sheikhzadeh
Author(s):  
Ankica Kondic-Spika ◽  
Borislav Kobiljski ◽  
Nikola Hristov

The objective of the study was to investigate efficiency of anther culture in the production of spontaneous double haploids from randomly selected heterozygous genotypes of wheat (Triticum aestivum L.). Anthers of 20 F1 wheat combinations were grown in vitro on a modified Potato-2 medium. All of the examined genotypes have shown the ability to produce pollen calluses as well as to regenerate green plants. On average for the whole experiment material, 47.2 calluses were produced per 100 cultured anthers. The green plant regeneration ranged from 0.8 to 13.4 green plants per spike, with an overall mean of 5.8. From the total of 582 regenerated green plants, 47.9% (279) were spontaneous double haploids. The final average yield from the study was 2.8 double haploids per spike.


2016 ◽  
Vol 6 (2) ◽  
pp. 57
Author(s):  
Atmitri Sisharmini ◽  
Aniversari Apriana ◽  
Sustiprijatno Sustiprijatno

<p>Callus Induction and In Vitro Plant Regeneration of<br />Wheat Genotypes (Triticum aestivum L.). Atmitri<br />Sisharmini, Aniversari Apriana, and Sustiprijatno. Development<br />of a reliable in vitro plant regeneration procedure for<br />wheat is a prerequisite for its improvement by genetic transformation.<br />The purpose of this study was to obtain methods<br />of callus induction and regeneration of wheat genotypes.<br />This experiment was conducted at ICABIOGRAD. Immature<br />embryos from four wheat genotypes, ie Perdix, Naxos Wew,<br />Combi and Fasan were used to induce callus formation and<br />regeneration rate of callus. For the preparation of callus<br />induction medium, MS-L7 basal medium was supplemented<br />with combination of growth regulators 2,4 dichlorophenoxy<br />acetic acid (2,4-D) and 4-amino-3,5,6-trichloropicolinic acid<br />(picloram). While, plant regeneration medium was prepared<br />using MS basal medium supplemented with combination of<br />three growth regulators i.e. IAA, BAP and kinetin. The results<br />showed that genotype, in vitro culture medium and growth<br />regulators played a dominant role in callus induction and<br />plantlet regeneration. All the 4 genotypes responded positively<br />to callus induction, however, variability was observed<br />not only among the genotypes but also within callus<br />induction medium used. The best induction medium was<br />the MS-L7 basal medium supplemented with combination of<br />phytohormon 4 mg/l 2,4-D + 2 mg/l picloram (GIK-3) which<br />showed 100% callus induction frequency. Whereas, the best<br />regeneration medium was shown by MS basal medium with<br />combination of phytohormon 1.5 mg/l BAP dan 0.5 mg/l<br />kinetin (RG3). Regarding plant regeneration, Perdix was the<br />most responsive genotype to be regenerated with regeneration<br />frequency of 57.33%. The successfully acclimatized<br />planlets in greenhouse were obtained from Perdix and<br />Naxos Wew genotypes. These results will potentially facilitate<br />genetic transformation research of wheat in Indonesia.</p>


1991 ◽  
Vol 69 (9) ◽  
pp. 1913-1918 ◽  
Author(s):  
M. H. Chen ◽  
C. C. Chen ◽  
D. N. Wang ◽  
F. C. Chen

Somatic embryos were induced directly on immature embryos of Carica papaya × Carica cauliflora hybrids cultured on modified Murashige and Skoog's medium. When transferred to medium supplemented with abscisic acid, individual somatic embryos proliferated numerous daughter embryos through repeated embryogenesis. Light microscopic study of the repeatedly embryogenic cultures showed that daughter embryos arose from single superficial cells of parent embryos. Plant regeneration occurred following transfer of somatic embryos to medium devoid of plant growth regulators. Regenerated plants were intermediate between C. papaya and C. cauliflora in several morphological respects and showed isozyme patterns specific to both species as well as some new bands, indicating that they are indeed interspecific hybrids. Key words: Carica, interspecific hybrid, embryo culture, somatic embryogenesis.


2007 ◽  
Vol 4 (3) ◽  
pp. 363-368
Author(s):  
Baghdad Science Journal

The effect of gamma radiation at the doses (0 , 5 , 10 or 15 ) Gray on the callus of four Triticum aestivum immature embryos genotypes (AL-Hashmiya , AL-Noor AL-Zahraa and AL-Mellad ) were studied . The fresh and dry weight for callus and shoot tips beside numbers and lengths of the shoots were used as indicators after 8 weeks . Results revealed that (AL-Noor and AL-Zahraa ) was superior by giving highest fresh and dry weight reached 274.2 and 269.2 mg and 26 and 24.3 mg respectively as compared with AL-Hashmiya and AL-Mellad. Moreover, the control treatment and the dose 10 Gray gave highest fresh weight reached 277.4 and 259.1 mg while the dry weight was highest in the control treatment and the dose 5 Gray. addition 10 Gray dose was superior to give highest rate for the number , length , fresh and dry weight of shoots reached 9.7 shoots , 3.6 cm length , 410.2 and 47.9 mg on respectively.


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