Author(s): Hawrylak-Nowak B, Matraszek R, Pogorzelec M
The boundary between beneficial and phytotoxic levels of selenium (Se) is narrow, and both induce alteration in plant growth and their physiology. In this study, the influence of two Se forms (selenite or selenate) with different concentrations (2–80 µM) on cucumber plants was investigated. The toxicity threshold for selenate and selenite was determined at the concentrations of 80 and 20 µM, respectively. In the Se-exposed plants, the growth-promoting effect was found at 6 µM of selenite and at 6–20 µM of selenate. The root activity considerably increased with increasing selenite concentrations suggesting the upregulation of mitochondrial dehydrogenases activity. Selenite treatment also impaired photosynthetic pigments accumulation and chlorophyll fluorescence parameters. Moreover, Se exerted a dual effect on lipid peroxidation in roots: at low concentrations it inhibited this process, whereas at high concentrations it enhanced the accumulation of harmful lipid peroxides. Under low Se concentrations (<10 µM), the accumulation of Se in shoots was similar in the presence of selenate and selenite. When Se concentration was >10 µM, the accumulation of Se in shoots was greater in selenate-exposed than selenite-exposed plants. However, in the roots the Se concentrations were always higher after selenite exposure comparing to selenate. The N level in plants was generally maintained constant, while the remaining macronutrients (especially K, P, and S) concentrations were significantly changed depending on the form and concentrations of Se. These results imply that an application of either selenate or selenite at concentrations <10 µM may be potentially used for biofortification of cucumber with Se and changes in plant macronutrient contents are not expected under these conditions.
Referred From: https://link.springer.com/article/10.1007/s11738-015-1788-9
Author(s): Quinn J
Author(s): Davis DW, Oelke EA, Oplinger ES, Doll JD, Hanson CV, et al.
Author(s): Ehlers JD, Hall AE
Author(s): Martins LMV, Xavier GR, Rangel FW, Ribeiro JRA, Neves MCP, et al.
Author(s): Jayathilake C, Visvanathan R, Deen A, Bangamuwage R, Jayawardana BC, et al.
Author(s): Makela MP, Jokinen K, Kontturi M, Peltonen-Sainio M, Pehu E, et al.
Author(s): Barth C, Moeder W, Klessig DF, Conklin PL
Author(s): Barth C, De Tullio M, Conklin PL
Author(s): Domokos-Szabolcsy E
Author(s): Garg OP, Kapoor V
Author(s): Mukherjee SP, Choudhuri MA
Author(s): Gonzalez-Reyes JA, Hidalgo A, Caler JA, Palos R, Navas P
Author(s): Bartoli CG, Yu J, Gomez F, Fernandez L, Mcintosh L, et al.
Author(s): Ejaz B, Sajid ZA, Aftab F
Author(s): Niemetz R, Gross GG
Author(s): Locatelli C, Leal PC, Yunes RA, Nunes RJ, Creczynski-PasaTB
Author(s): Dai J, Mumper RJ
Author(s): Ozfidan-Konakci C, Yildiztugay E, Kucukoduk M
Author(s): Zhu YG, Pilon-Smits EAH, Zhao FJ, Williams PN, Meharg AA
Author(s): Sors TG, Ellis DR, Na GN, Lahner B, Lee S, et al.
Author(s): Huang B, Zhang J, Hou J, Chen C
Author(s): Domokos-Szabolcsy E, Marton L, Sztrik A, Babka B, Prokisch J, et al.
Author(s): Zhang J, Wang X, Xu T
Author(s): Pignocchi C, Foyer CH
Author(s): Darvishan M, Tohidi-Moghadam HR, Zahedi H
Author(s): Dolatabadian A, Sanavy SAMM, Chashmi NA (2008)
Author(s): Barh D, Srivastava HC, Mazumdar BC
Author(s): Yun X, Zijian W, Wenhua W, Peng An
Author(s): Chu J, Xiaoqin Y, Zhang Z
Author(s): Haghighi M, Abolghasemi R, Teixeira da Silva JA
Author(s): Bergmeyer HU
Author(s): Lowry OH, Rosebrough NJ, Farr AL, Randell RJ
Author(s): Umbriet WW, Burris RH, Stauffer JF
Author(s): Hartikainen H, Xue T, Piironen V
Author(s): Garcia-Bañuelos LM, Hermosillo-Cerec MA, Sanchez E
Author(s): Malik JA, Kumar S, Thakur P, Sharma S, Kaur R, et al.
Author(s): Razaji A, Asli DE, Farzanian M (2012)
Author(s): Jan SA, Bibi N, Shinwari ZK, Rabbani MA, Ullah S, et al.
Author(s): Ahmed I, Basra SMA, Wahid A
Author(s): Naz H, Akram NA, Ashraf M
Author(s): Lu CM, Zhang CY, Wu JQ, Tao MX
Author(s): Fujikura Y, Karssen CM
Author(s): Farooq M, Basra SMA, Wahid A, Khaliq A, Kobayashi N
Author(s): Abdul Khaliq, Aslam F, Matloob A, Hussain S, Geng M, et al.
Author(s): Maiti BR, Sengupta S
Author(s): Khan TA, Mazid M, Mohammad F
Author(s): Terzi R, Kalaycıoglu E, Demiralay M, Saglam A, Kadioglu A
Author(s): Patel RG, Mankad AU
Author(s): Shu K, Liu XD, Xie Q, He ZH
Author(s): Li C, Li J, Chong K, Harter K, Lee Y, et al.
Author(s): Morton LW, Abu-Amsha CR, Puddey IB, Croft KD
Author(s): Mozafariyan M, Kamelmanesh MM, Hawrylak-Nowak B
Author(s): Djanaguiraman M, Devi DD, Shanker AK, Sheeba A, Bangarusamy U
Author(s): FrÄ czek A, Pasterniak K
Author(s): Smrkolj P, Germ M, Kreft I, Stibilj V
Author(s): Bailly C, Benamar A, Corbineau F, Come D
Author(s): Bailly C
Author(s): Germ M, Stibilj V, Kreft I
Author(s): Niu J, Zhao L, Fan Y, Shi S, He L, et al.
Author(s): Munir N, Naz S, Aslam F, Shahzadi K, Javad S
Author(s): Malerba M, Cerana R
Author(s): Wang JD, Wang X, Wong JS
Author(s): Van Hoewyk D
Author(s): Fu LH, Wang XF, Eyal Y, She YM, Donald LJ, et al.