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Carbon Nanoparticle Exerts Positive Growth Effects with Increase in Productivity by Down-Regulating Phytochrome B and Enhancing Internal Temperature in Rice

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Rice science 2021年第3期28卷 289-300,I0026,I0028页

作者： Madhusmita PANIGRAHY subhashree das Yugandhar POLI Pratap Kumar SAHOO Khushbu KUMARI Kishore C.S.PANIGRAHI School of Biological Sciences National Institute of Science Education and Research(Homi Bhabha National Institute)Odisha 752050India Biofuel&Bioprocessing Research Center Institute of Technical Education and ResearchSiksha‘O’Anusandhan Deemed to be UniversityOdisha 751001India Indian Institute of Rice Research Rajendra NagarHyderabad 500030India School of Physical Science National Institute of Science Education and Research(Homi Bhabha National Institute)Odisha 752050India Center for Interdisciplinary Science National Institute of Science Education and Research(Homi Bhabha National Institute)Odisha 752050India Faculty of Biology and Biotechnology Ruhr University BochumBochum 44780Germany

The effects of carbon nanoparticle(CNP)on rice variety Swarna(MTU7029)were *** induced effects similar to shade avoidance response(SAR)of Arabidopsis,with increase in shoot length,root length,root number,cotyledon area,chlorophyll content and total sugar content in rice *** mature plants,CNP treatment resulted increase in plant height,number of productive tillers per plant,normalized difference vegetation index,quantum yield and root growth.A total of 320 mg of CNP per plant administered in four doses resulted in improved grain traits such as filled grain rate,100-grain weight,grain length/width ratio,hulling rate,milling rate and head rice *** from the CNP-treated plants showed increase in amylose,starch and soluble sugar contents compared to ***,CNP treatment showed an average of 17.5%increase in yield per *** investigation to the molecular mechanism behind CNP induction of SAR,a significant downregulation of phytochrome B transcript was *** in perception of red wavelengths led to responses similar to *** in plant’s internal temperature by 0.5ºC±0.1ºC was recorded after CNP *** suggest that the internalized CNP aggregates may serve to absorb extra photons thereby increasing the internal temperature of *** B accounts the hike in internal temperature and initiates a feed-back reduction of its own *** suggest that moderate SAR is beneficial for rice plants to improve agronomic traits and *** presents a potential non-transgenic method for improving rice yield by CNP treatment.

关键词： agronomic trait carbon nanoparticle flowering time rice grain quality phytochrome B yield shade avoidance response temperature sensing

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Separation of hematite from banded hematite jasper(BHJ) by magnetic coating

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Journal of Central South University 2015年第2期22卷 437-444页

作者： subhashree Singh H.Sahoo S.S.Rath B.B.Palei B.das CSIR-Institute of Minerals and Materials Technology

The separation of iron oxide from banded hematite jasper(BHJ) assaying 47.8% Fe, 25.6% Si O2 and 2.30%Al2O3 using selective magnetic coating was studied. Characterization studies of the low grade ore indicate that besides hematite and goethite,jasper, a microcrystalline form of quartzite, is the major impurity associated with this ore. Beneficiation by conventional magnetic separation technique could yield a magnetic concentrate containing 60.8% Fe with 51% Fe recovery. In order to enhance the recovery of the iron oxide minerals, fine magnetite, colloidal magnetite and oleate colloidal magnetite were used as the coating material. When subjected to magnetic separation, the coated ore produces an iron concentrate containing 60.2% Fe with an enhanced recovery of56%. The AFM studies indicate that the coagulation of hematite particles with the oleate colloidal magnetite facilitates the higher recovery of iron particles from the low grade BHJ iron ore under appropriate conditions.

关键词：磁性涂层赤铁矿磁分离碧玉带状低品位矿铁回收率涂覆材料

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