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Extremely high boron tolerance in Puccinellia distans (Jacq.) Parl. related to root boron exclusion and a well-regulated antioxidant system

Hamurcu, Mehmet; Hakki, Erdogan E.; Sert, Tijen Demiral; Ozdemir, Canan; Minareci, Ersin; Avsaroglu, Zuhal Z.; Gezgin, Sait; Kayis, Seyit Ali; Bell, Richard W.


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{
  "DOI": "10.1515/znc-2015-0226", 
  "abstract": "Recent studies indicate an extremely high level of tolerance to boron (B) toxicity in Puccinellia distans (Jacq.) Parl. but the mechanistic basis is not known. Puccinellia distans was exposed to B concentrations of up to 1000 mg B L-1 and root B uptake, growth parameters, B and N contents, H2O2 accumulation and center dot OH-scavenging activity were measured. Antioxidant enzyme activities including superoxide dismutase (SOD), ascorbate peroxidase, catalase, peroxidase and glutathione reductase, and lipid peroxidation products were determined. B appears to be actively excluded from roots. Excess B supply caused structural deformations in roots and leaves, H2O2 accumulation and simultaneous up-regulation of the antioxidative system, which prevented lipid peroxidation even at the highest B concentrations. Thus, P. distans has an efficient root B-exclusion capability and, in addition, B tolerance in shoots is achieved by a well-regulated antioxidant defense system.", 
  "author": [
    {
      "family": "Hamurcu", 
      "given": " Mehmet"
    }, 
    {
      "family": "Hakki", 
      "given": " Erdogan E."
    }, 
    {
      "family": "Sert", 
      "given": " Tijen Demiral"
    }, 
    {
      "family": "Ozdemir", 
      "given": " Canan"
    }, 
    {
      "family": "Minareci", 
      "given": " Ersin"
    }, 
    {
      "family": "Avsaroglu", 
      "given": " Zuhal Z."
    }, 
    {
      "family": "Gezgin", 
      "given": " Sait"
    }, 
    {
      "family": "Kayis", 
      "given": " Seyit Ali"
    }, 
    {
      "family": "Bell", 
      "given": " Richard W."
    }
  ], 
  "container_title": "ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES", 
  "id": "59663", 
  "issue": "7-8", 
  "issued": {
    "date-parts": [
      [
        2016, 
        1, 
        1
      ]
    ]
  }, 
  "page": "273-285", 
  "title": "Extremely high boron tolerance in Puccinellia distans (Jacq.) Parl. related to root boron exclusion and a well-regulated antioxidant system", 
  "type": "article-journal", 
  "volume": "71"
}
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