Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

• DOI: 10.1371/journal.pone.0192732
• Publication Date: 2018-02-28T13:37:04Z
• Authors: Nyuk Ling Ma; Wan Afifudeen Che...; Nisrin Abd. Kadir; Mohamad Mustaqim; Zaidah Rahmat; Aziz Ahmad; Su Datt Lam; Mohd Razi Ismail
• Keywords: APX; Metabolome

Salinity threat is estimated to reduce global rice production by 50%. Comprehensive analysis of the physiological and metabolite changes in plants from salinity stress (i.e. tolerant versus susceptible plants) important combat higher conditions. In this study, we screened a total 92 genotypes selected most line (SS1-14) (SS2-18) conduct comparative metabolome inspections. We demonstrated that managed maintain their water chlorophyll content with lower incidence sodium ion accumulation. also examined antioxidant activities these lines: ascorbate peroxidase (APX) catalase (CAT) were significantly sensitive while superoxide dismutase (SOD) was line. Partial least squares discriminant (PLS-DA) score plots show different response for both lines after exposure stress. line, there an upregulation non-polar metabolites sucrose, GABA acetic acid, suggesting role adaptation. contrast, glutamine putrescine noticeably high rice. Coordination strategies they responded differently salt These findings can assist crop development terms developing tolerance mechanisms crops.