In vitro morphogenesis of pearl millet [ Pennisetum glaucum (L.) R.Br.]: efficient production of multiple shoots and inflorescences from shoot apices

2000 ◽  
Vol 19 (6) ◽  
pp. 546-550 ◽  
Author(s):  
P. Devi ◽  
H. Zhong ◽  
M. B. Sticklen
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 ◽  
...  

1969 ◽  
Vol 47 (4) ◽  
pp. 575-580 ◽  
Author(s):  
G. S. Hicks ◽  
T. A. Steeves

In sterile nutrient culture, shoot apices of the rhizome of Osmunda cinnamomea L., devoid of all visible foliar primordia, quickly give rise to dorsiventral leaf primordia at a presumptive leaf site (I1). It was established that these primordia were irreversibly determined as leaves. To examine the morphogenetic role of the shoot apex in governing early leaf development, this site was permanently isolated from the shoot apex by a single tangential cut. Usually, radially symmetrical shoots of indeterminate growth arose at I1 as a result of this surgery. By contrast, when organic continuity between I1 and the shoot apex was only temporarily interrupted by a cut which was subsequently allowed to heal, normally oriented dorsiventral leaf primordia formed most frequently at I1. These, too, were determined as leaves. It was concluded that the shoot apex serves as a source of determinative influences for the nascent primordium, imposing dorsiventrality and a pattern of determinate growth on the leaf site.


Coatings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1163
Author(s):  
Anil Kumar Siroha ◽  
Sneh Punia Bangar ◽  
Kawaljit Singh Sandhu ◽  
Monica Trif ◽  
Manoj Kumar ◽  
...  

Pearl millet starch was modified using epichlorohydrin (EPI) at different concentrations (0.1%; 0.3%; 0.5%; and 0.8%) and evaluated for physicochemical, rheological, in vitro digestibility, and film-forming characteristics. The degree of cross-linking was observed at higher levels (0.5% and 0.8%) of EPI. Upon cross-linking, breakdown and setback viscosity reduced whereas pasting temperature was increased. Storage modulus (G′) and loss modulus (G″) value of cross-linked (CL) starches ranged between 2877 to 5744 Pa and 168 to 237 Pa, respectively, during the frequency sweep test. A drastic decrease was observed for steady shear (yield stress and consistency index) characteristics of CL starches. Resistant starch (RS) content was increased after starch modification, which imparts its nutritional values and starch modified at 0.8% had the highest RS content. Modifications of starch at different levels had significant effects on the moisture, opacity, solubility and mechanical properties of films. Outcomes of this study will be helpful to understand the properties of native and CL starches for their potential applications in preparation of edible films.


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