Changes in distribution of zeatin and indole-3-acetic acid in cells during callus induction and organogenesis in vitro in immature embryo culture of wheat

2016 ◽  
Vol 52 (3) ◽  
pp. 251-264 ◽  
Author(s):  
Oksana A. Seldimirova ◽  
Guzel R. Kudoyarova ◽  
Natalia N. Kruglova ◽  
Denis Yu. Zaytsev ◽  
Stanislav Yu. Veselov
Keyword(s):  
Acetic Acid ◽  
Embryo Culture ◽  
Callus Induction ◽  
Immature Embryo ◽  
Organogenesis In Vitro ◽  
Immature Embryo Culture ◽  
Indole 3 Acetic Acid ◽  
In Cells

scholarly journals In vitro callus induction of gerbera from leaf explant

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Sadia Afrin Jui ◽  
Md. Mijanur Rahman Rajib ◽  
M. Mofazzal Hossain ◽  
Sharmila Rani Mallik ◽  
Iffat Jahan Nur ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Growth Regulators ◽  
Callus Induction ◽  
Leaf Explants ◽  
Leaf Explant ◽  
Naphthalene Acetic Acid ◽  
Dichlorophenoxyacetic Acid ◽  
Ms Medium ◽  
Indole 3 Acetic Acid

The experiment was designed to evaluate the effect of growth regulators on leaf explant of Gerbera for callus induction. Various kinds of plant growth regulators such as 6-Benzylaminopurine (BAP), α-Naphthalene acetic acid (NAA), 2, 4-Dichlorophenoxyacetic acid (2, 4-D), Indole-3-acetic acid (IAA) were used to initiate cultures. These were added to Murashige and Skoog medium in different combinations and concentrations. Leaf explants cultured on MS medium supplemented with BAP+ 2, 4-D+ IAA in T4 treatment & BAP+ 2,4-D in T5 treatment showed the best results for callus induction. On the other hand callus was induced early in the combination of BA+ 2,4-D + IAA hormone in T5, T9 & T8 treatment respectively. The rate of callus induction was very low in BA + NAA combinations but it was much earlier.   

scholarly journals In Vitro Culture of Zygotic Embryos of Ilex Species

HortScience ◽  
2001 ◽  
Vol 36 (2) ◽  
pp. 351-352 ◽  
Author(s):  
Pedro A. Sansberro ◽  
Hebe Y. Rey ◽  
Luis A. Mroginski
Keyword(s):  
In Vitro Culture ◽  
Embryo Culture ◽  
Immature Embryo ◽  
Zygotic Embryos ◽  
Skoog Medium ◽  
Murashige And Skoog Medium ◽  
Immature Embryo Culture

Plants of Ilex argentina L., I. brasiliensis (S.) L., I. brevicuspis R., I. dumosa R., I. integerrima (V.C.) L., I. microdonta R., I. pseudoboxus R., and I. theezans C.M. were obtained by immature embryo culture. Heart-stage zygotic embryos were removed from immature fruits and cultured aseptically on quarter-strength Murashige and Skoog medium with 3% sucrose, 0.65% agar, and 0.1 mg·L-1 zeatin. Cultures were incubated at 27±2°C for 4 weeks, in darkness and subsequently transferred to a culture room with a 14-hour photoperiod (116 μmol·m-2·s-1) for another 4 weeks. Seedlings with two leaves, derived from germinated embryos, were successfully transplanted to pots containing 1 peat: 1 perlite: 1 sand (v/v) and were maintained in greenhouse conditions. From 95% to 100% of transplanted seedlings survived. Chemical name used: 6-(4-hydroxy-3-methylbut-2-enylamino) purine (zeatin).

Callus Induction and Plant Regeneration in Rauvolfia Serpentina (L.) Benth Ex. Kurz.

2009 ◽  
Vol 24 ◽  
pp. 82-88 ◽  
Author(s):  
Saraswoti Aryal ◽  
Sanu Devi Joshi
Keyword(s):  
Acetic Acid ◽  
Callus Induction ◽  
Coconut Milk ◽  
Ms Medium ◽  
Rauvolfia Serpentina ◽  
History Museum ◽  
Short Period ◽  
Murashige Skoog ◽  
Callus Tissue Culture

Rauvolfia serpentina (L.) ex. Kurz is an important medicinal plant. Callus induction and regeneration was studied from stem explant of in-vitro grown plant of Rauvolfia serpentina(L.) Benth. ex Kurz (Apocynaceae) on Murashige Skoog (1962) medium supplemented with 1mg/l 2,4-Dichlorophenocy acetic acid (2,4-D) and 1mg/l Kinetin (Kn). Vigorous growth of callus occurs after 4 weeks of culture. Callus was sub-cultured on Murashige and Skoog (MS) medium supplemented with different concentration of 2, 4-D (0.5-3.0 mg/l) and 10% coconut milk. Regeneration of plantlets occurred on MS medium containing 3 mg/1 of 2, 4-D and 10% coconut milk. These plantlets were rooted on MS medium supplemented with 1 mg/l IAA .The regenerated plantlets were able to grow on soil after short period ofacclimatization. Key words: Explant; In-vitro culture; MS medium;  2, 4 Dichlorophenoxy acetic acid; Kinetin; Callus; Tissue culture; Coconut milk. Journal of Natural History Museum Vol. 24, 2009 Page: 82-88

scholarly journals The ectopic expression of Arabidopsis glucosyltransferase UGT74D1 affects leaf positioning through modulating indole-3-acetic acid homeostasis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shanghui Jin ◽  
Bingkai Hou ◽  
Guizhi Zhang
Keyword(s):  
Acetic Acid ◽  
Ectopic Expression ◽  
Leaf Angle ◽  
Kinase Substrate ◽  
Auxin Distribution ◽  
Leaf Tissues ◽  
Photosynthesis Efficiency ◽  
Indole 3 Acetic Acid

AbstractLeaf angle is an important agronomic trait affecting photosynthesis efficiency and crop yield. Although the mechanisms involved in the leaf angle control are intensively studied in monocots, factors contribute to the leaf angle in dicots are largely unknown. In this article, we explored the physiological roles of an Arabidopsis glucosyltransferase, UGT74D1, which have been proved to be indole-3-acetic acid (IAA) glucosyltransferase in vitro. We found that UGT74D1 possessed the enzymatic activity toward IAA glucosylation in vivo and its expression was induced by auxins. The ectopically expressed UGT74D1 obviously reduced the leaf angle with an altered IAA level, auxin distribution and cell size in leaf tissues. The expression of several key genes involved in the leaf shaping and leaf positioning, including PHYTOCHROME KINASE SUBSTRATE (PKS) genes and TEOSINTE BRANCHED1, CYCLOIDEA, and PCF (TCP) genes, were dramatically changed by ectopic expression of UGT74D1. In addition, clear transcription changes of YUCCA genes and other auxin related genes can be observed in overexpression lines. Taken together, our data indicate that glucosyltransferase UGT74D1 could affect leaf positioning through modulating auxin homeostasis and regulating transcription of PKS and TCP genes, suggesting a potential new role of UGT74D1 in regulation of leaf angle in dicot Arabidopsis.

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