# Plant-Growth-Promoting Bacteria Mitigating Soil Salinity Stress in Plants
## 5 Role of PGPB in Alleviating Salinity Stress to Plants
### PGPB Support Nutrient Acquisition in Plants
#### 5.2.3 Iron Mobilization
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Plant** & **Beneficial Effect(s)** & **Haltolerant PCPR** & **PCP-Traits** & **Conditions** & **Source** \\ \hline \multirow{2}{*}{_Triticum aestivum_} & induced salinity tolerance, increased plant biomass and relative water content & _Racillus sp._, _PoS. statizeri, Az.prasilians, Az.preliform, 2-15\%_ & IAA, gibberell acid, cytokinin, abscisic acid & greenhouse, pots, soil, 150 mM NaCl & [74] \\  & content & NaCl & & \\ \hline \multirow{2}{*}{_Glycine max, Zon maps_} & improved seed germination, root and stem length & _Pseudomonas putida_ KT2440, 0.5 M & phosphate solubilization, indoles and siderophores & growth chamber, pots, soil, sand, 80 and 100 mM NaCl & [127] \\  & improved growth, induced plant response for defense enzymes, chlorophyll proline, soluble sugars & _B. subtilis, B. subtilis, B. subtilis, B. subtilis, B. subtilis,_ 1 M NaCl & ACC-deaminase, IAA, P-solubilization, EPS & greenhouse, pots, soil, 100 mM NaCl & [83] \\ \hline \multirow{2}{*}{_Lyopersicum esculentum_} & improved fresh and dry biomass, chlorophyll contents, and a greater number of flowers and buds & _P. fluorescens_ YsS6 and _P. mugulae_ & IAA, siderophores, phosphate solubilization, and 185 mM NaCl & [62] \\  & & 886 & ACC-deaminase & greenhouse, soils, pots, and 185 mM NaCl & [78] \\ \hline \multirow{2}{*}{_Glycine max_} & length, shoot biomass, chlorophyll content & _Pseudomonas putida_ H-2-3 & gibberellins, abscisic and salicylic acids & greenhouse, pots, peat mixture, 120 mM NaCl & [75] \\  & & & & \\ \hline \multirow{2}{*}{_Oryza sativa sativa_} & dry matter, chlorophyll content, & _B. topuliensis, B. argubhattai, Providence stantiti_ & glasshouse, pots, soil, NaCl (EC = 8 dS\(\cdot\)m\({}^{-1}\)) & [128] \\  & & & & NaCl (EC = 8 dS\(\cdot\)m\({}^{-1}\)) & \\ \hline \multirow{2}{*}{_Zon maps_} & increase K\({}^{+}\)/Na\({}^{*}\) ratio, plant growth & _Arthobacter sp._, _Bacillus_ sp. & auxin, abscisic acid, cytokinin, gibberellins & greenhouse, pots, sand-scrutinite, NaCl & [129] \\  & & & & (EC = 12 dS\(\cdot\)m\({}^{-1}\)) & \\ \hline \multirow{2}{*}{_Triticum durum_} & Growth promotion, chlorophyll content, K\({}^{+}\)/Na\({}^{+}\) ratio & _Pantoa agglomerants_, 1 M NaCl & auxin, ACC-deaminase, phosphate solubilization & growth chamber, pot, soil, 100 and 200 mM NaCl & [75] \\  & improving growth and salt stress & _Serratia liquefic_s KM4, 450 mM & IAA, siderophores, phosphate solubilization & growth chamber, pots, soil, 160 mM NaCl & [76] \\  & tolerance, regulating ion homeostasis, redox potential, leaf gas exchange, stress-related genes expression & NaCl & & \\ \hline \multirow{2}{*}{_Lulinum perme_} & enhanced growth and salt tolerance and K\({}^{+}\)/Na\({}^{+}\) ratio, chlorophyll, root volume and activity, leaf catalase activity, soluble sugar and proline & _Pseudomonas_ sp. M30-35, & phosphorus solubilization, auxin & greenhouse, pots, soil, 300 mM NaCl & [130] \\ \hline \multirow{2}{*}{_Triticum durum_} & increasing light absorbed by PSII antenna, PQ ratio and total quenching of chlorophyll fluorescence, increased yield of grains & consortium (_A. pititi, A. oleivomas, A. alcouacticus, Commons testosterone_) & Phosphate, K, and Zn solubilization, N2 fixation & greenhouse, pots, soil, 150 mM NaCl & [131] \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._