title: Copper nanoparticle (CuNP) nanochain arrays with a reduced toxicity response: a biophysical and biochemical outlook on Vigna radiata.
abstract: Copper deficiency or toxicity in agricultural soil circumscribes a plant's growth and physiology, hampering photochemical and biochemical networks within the system. So far, copper sulfate (CS) has been used widely despite its toxic effect. To get around this long-standing problem, copper nanoparticles (CuNPs) have been synthesized, characterized, and tested on mung bean plants along with commercially available salt CS, to observe morphological abnormalities enforced if any. CuNPs enhanced photosynthetic activity by modulating fluorescence emission, photophosphorylation, electron transport chain (ETC), and carbon assimilatory pathway under controlled laboratory conditions, as revealed from biochemical and biophysical studies on treated isolated mung bean chloroplast. CuNPs at the recommended dose worked better than CS in plants in terms of basic morphology, pigment contents, and antioxidative activities. CuNPs showed elevated nitrogen assimilation compared to CS. At higher doses CS was found to be toxic to the plant system, whereas CuNP did not impart any toxicity to the system including morphological and/or physiological alterations. This newly synthesized polymer-encapsulated CuNPs can be utilized as nutritional amendment to balance the nutritional disparity enforced by copper imbalance.
authors: †Biological Sciences Division, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
authors: Saheli
authors: S
authors: Pradhan
authors: §Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, Kolkata 700098, India.
authors: Prasun
authors: P
authors: Patra
authors: †Biological Sciences Division, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
authors: Shouvik
authors: S
authors: Mitra
authors: #Department of Statistics, University of Chicago, Chicago, Illinois 60637, United States.
authors: Kushal Kumar
authors: KK
authors: Dey
authors: †Biological Sciences Division, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
authors: Satakshi
authors: S
authors: Basu
authors: †Biological Sciences Division, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
authors: Sourov
authors: S
authors: Chandra
authors: ⊥Plant Physiology Section, Central Research Institute for Jute and Allied Fibers, Indian Council of Agricultural Research, Barrackpore, Kolkata 700120, India.
authors: Pratip
authors: P
authors: Palit
authors: †Biological Sciences Division, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
authors: Arunava
authors: A
authors: Goswami
mesh_terms: D003300:Copper / Q000378:metabolism*; D019327:Copper Sulfate / Q000378:metabolism / Q000633:toxicity; D007887:Fabaceae / Q000737:chemistry / Q000378:metabolism*; D053768:Metal Nanoparticles / Q000032:analysis; D010788:Photosynthesis
chemical_list: D003300:Copper; D019327:Copper Sulfate
keywords: copper nanoparticles; dark reaction; encapsulated; light reaction; photosynthesis