NDLI: Enzymatic and growth responses in a commercial variety of tobacco (Nicotiana tabacum, L.) treated with a chitosan polymer by foliar spray.

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Enzymatic and growth responses in a commercial variety of tobacco (Nicotiana tabacum, L.) treated with a chitosan polymer by foliar spray.

Content Provider	Semantic Scholar
Author	Falcón-Rodríguez, Alejandro B. Menéndez, Daimy Costales Téllez, Miguel Á. Martínez Gordon, Trudy Ann
Copyright Year	2012
Abstract	Tobacco plants (Criollo 98) were sprayed with different concentrations (0, 0.1, 0.5, 1, 2.5 g.L -1 ) of chitosan polymer 30 days after planting (dap). 14 days after treatment, variations caused by chitosan on plant growth were measured, using the following variables: number of leaves, stem and roots length and dry mass. Polymer treatments caused stimulation and inhibition of the variables measured depending on the chitosan concentration tested. Changes in the protein and reducing carbohydrate contents were, also, obtain in tobacco leaves sprayed with chitosan, mainly increments above control at 37 dap, depending on the polymer concentration tested. Nitrato reductase activity was just induced above control at 37 dap with the highest concentration (2.5 g.L -1 ) tested. Also, defense markers evaluated were just induced, above control, at 33 dap, again depending on polymer concentration. β 1-3 glucanase activated at 1.0 g.L -1 , while PAL activated with the three highest concentration (0.5-2.5 g.L -1 ) employed. According to results, there is no relation between the increasing of defense responses and changes on proteic and reducing carbohidrates content; however, due to the complexity of the induced resistance response, it is necessary to look deeple in to this study by including other markers and different way of chitosan application.
Starting Page	65
Ending Page	70
Page Count	6
File Format	PDF HTM / HTML
Volume Number	33
Alternate Webpage(s)	https://www.redalyc.org/pdf/1932/193223840010.pdf
Alternate Webpage(s)	http://scielo.sld.cu/pdf/ctr/v33n1/ctr10112.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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