Potassium (K) deficiency is a widespread nutritional stress that significantly limits rice productivity by impairing growth and physiological functions. To address this challenge, we hypothesized that seed priming with salicylic acid (SA) or spermidine (SPD) could enhance seedling performance and stress tolerance under low-K conditions. This study evaluated the physiological, biochemical, and molecular responses of rice seedli...

Suaeda japonica Makino, a succulent euhalophyte from the Chenopodiaceae family, grows naturally in Japan and is presumed to exhibit high salt tolerance. However, the molecular mechanisms underlying its salinity tolerance remain poorly understood. This study aimed to examine the physiological responses of S. japonica to varying NaCl concentrations, perform transcriptome profiling of its leaves and roots under 600 mM NaCl exposu...

Plant-bacteria indirect interaction is a naturally occurring phenomenon however many aspects of this interaction remain unclear. In this study, the effects of bacterial inoculation were investigated by tissue culture experiments as indirect application to compare rice growth in saline conditions. Four isolates applied indirectly had 1.5-times greater shoot dry mass of rice under 100 mM NaCl treatment. The isolates were identif...

This study aims to clarify the process of Na + overaccumulation under saline-alkaline (SA) stress at the initial stage of the stress periods. Koshihikari rice plants at the four- to five-leaf stage were subjected to saline stress (50 mM Na + ; pH 5.5) and SA stress at various pH levels (50 mM Na + ; pH 7.5 (mild), 8.0 (moderate), and 8.5 (severe)), then the concentrations of Na + and K + and gene expressions in the samples wer...

The aim of this study was to characterize the tissue tolerance mechanisms of rice under salt stress. Our preliminary experiment identified a japonica rice landrace Shuzenji-kokumai (SZK), which is considered to be tissue-tolerant because it can maintain better growth than salt-sensitive rice varieties while having a high-Na + concentration in the shoots under salt stress. These mechanisms differ from those of most salt-toleran...

Rice production is seriously affected by saline-alkaline stress worldwide. To elucidate the saline-alkaline tolerance mechanisms in a novel tolerant rice variety, Shwe Nang Gyi (SNG), we investigated ion accumulation in SNG and Koshihikari (KSH), which is a saline-alkaline sensitive rice variety, and the candidates for saline-alkaline inducible genes in SNG using RNA-seq. SNG had superior ion accumulation capacity, such as K a...