Thermo Stimulated Currents a method to identify gene mutation in Arabidopsis Thaliana

Roig, Frédéric; Dantras, Éric; Grima‐Pettenati, Jacqueline; Lacabanne, C.

doi:10.1109/ise.2011.6085039

Cited by 1 publication

(2 citation statements)

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“…Jafarpour et al (2008) found two components for the dielectric manifestation of poplar glass transition: one associated with the response of cellulose and the second associated with lignin. Roig et al (2011bRoig et al ( , 2012) associated b Lignin with the molecular mobility of hydroxyl group of lignin; this assignment sounds consistent with the observed data.…”

Section: B Ligninsupporting

confidence: 90%

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Dielectric and mechanical properties of various species of Madagascan woods

et al. 2017

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr Abstract The low-temperature molecular mobility of three different wood species was analyzed, with the two major constituents-cellulose and lignin-as reference. Mechanical and dielectric dynamic techniques were used. In order to observe the fine structure of the broad relaxation modes of wood, a very low-frequency analysis was carried out by thermostimulated current technique. Low-temperature relaxations of rosewood were assigned to low-temperature relaxations of cellulose. There was no dielectric response of lignin in rosewood. Contrarily, both cellulose and lignin responses were distinguished in ebony and varongy. Thermostimulated currents analyses exhibit the specific behavior of lignin in the various wood species. Moreover, the relaxation mode of cellulose observed at lower temperature remains localized in rosewood, while it tends to delocalize in varongy and ebony. The nature and intensity of physical interactions that induce variation of phase miscibility might be responsible for the observed differences. Even at the scale of the c relaxation, physical interactions modify molecular mobility.

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Section: B Ligninsupporting

confidence: 90%

“…This broad relaxation was also resolved into elementary thermograms. The molecular origin of this relaxation mode is the mobility of OH groups of lignin (Roig et al 2012(Roig et al , 2011b. Data extracted from the series of elementary thermograms permit to plot the variation of the activation enthalpy DH versus temperature (Fig.…”

Section: Resultsmentioning

confidence: 99%