scholarly journals In vitro transformation of pearl millet (Pennisetum glaucum (L). R. BR.): Selection of chlorsulfuron-resistant plants and long term expression of the gus gene under the control of the emu promoter

2015 ◽  
Vol 14 (46) ◽  
pp. 3112-3123 ◽  
Author(s):  
Ti eacute coura Kouakou ◽  
Bakari Kouassi Abou ◽  
Oulo N rsquo nan Alla ◽  
Gonedel eacute Bi S eacute ry ◽  
Dinant Monique ◽  
...  
Clay Minerals ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 433-438 ◽  
Author(s):  
U. Schwertmann ◽  
H. Stanjek ◽  
H.-H. Becher

Abstract2-line ferrihydrite stored in water at ambient temperatures from 4 to 25°C and at ten different pH values between 2.5 and 12 for up to 10–12 y transformed to both goethite and hematite at all temperatures and pH values except at pH 12 where only goethite was formed. The rate and degree of transformation (20–100%) increased with increasing pH and temperature. The hematite/ (hematite+goethite) ratio varied between 0 and ~0.8, increased with increasing temperature and showed a strong maximum at pH 7–8 which increased from 0.1–0.2 at 4°C to 0.7–0.8 at 25°C. The maximum coincides with the zero point of charge of ferrihydrite where its solubility and, thus, its via-solution transformation rate to goethite are minimal. We assume, therefore, that in this pH-range the (slower) via-solution transformation to hematite can more efficiently compete with that to goethite.


2007 ◽  
Vol 154 (1) ◽  
pp. 90-94 ◽  
Author(s):  
Pierrick Uzureau ◽  
Cécile Felu ◽  
Géraldine De Muylder ◽  
Etienne Pays ◽  
Luc Vanhamme

1993 ◽  
Vol 156 (2) ◽  
pp. 169-176 ◽  
Author(s):  
Hermann Hafner ◽  
Joachim Bley ◽  
André Bationo ◽  
Peter Martin ◽  
Horst Marschner

2011 ◽  
Vol 18 (6) ◽  
pp. R213-R231 ◽  
Author(s):  
Carla S Verissimo ◽  
Jan J Molenaar ◽  
Carlos P Fitzsimons ◽  
Erno Vreugdenhil

Despite the expansion of knowledge about neuroblastoma (NB) in recent years, the therapeutic outcome for children with a high-risk NB has not significantly improved. Therefore, more effective therapies are needed. This might be achieved by aiming future efforts at recently proposed but not yet developed targets for NB therapy. In this review, we discuss the recently proposed molecular targets that are in clinical trials and, in particular, those that are not yet explored in the clinic. We focus on the selection of these molecular targets for which promisingin vitroandin vivoresults have been obtained by silencing/inhibiting them. In addition, these selected targets are involved at least in one of the NB tumorigenic processes: proliferation, anti-apoptosis, angiogenesis and/or metastasis. In particular, we will review a recently proposed target, the microtubule-associated proteins (MAPs) encoded by doublecortin-like kinase gene (DCLK1).DCLK1-derived MAPs are crucial for proliferation and survival of neuroblasts and are highly expressed not only in NB but also in other tumours such as gliomas. Additionally, we will discuss neuropeptide Y, its Y2 receptor and cathepsin L as examples of targets to decrease angiogenesis and metastasis of NB. Furthermore, we will review the micro-RNAs that have been proposed as therapeutic targets for NB. Detailed investigation of these not yet developed targets as well as exploration of multi-target approaches might be the key to a more effective NB therapy, i.e. increasing specificity, reducing toxicity and avoiding long-term side effects.


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