3.3.3. Osmolytes (Soluble Sugar, Soluble Protein, and Proline) Contents

Results in (Table 2) clearly showed *F. oxysporum* infection caused a major reduction in contents of soluble sugars by 38.50% and soluble protein by 57.13% over the healthy control. Still, it caused proline increment by 11.84% over the healthy control. The infected pepper plants treated with cyanobacteria ameliorated total carbohydrates, protein, and proline contents. Cyanobacteria treatment through different modes of application showed

a high response. It increased the Accumulation of osmolytes (soluble sugar, soluble protein, and proline) contents compared to the infected control plants.

**Figure 3.** Effect of cyanobacteria on photosynthetic pigments of the infected pepper plant with *Fusarium* wilt (T1-healthy control, T2-infected control, T3-infected plants treated with *D. muscorum* soil, T4-infected plants treated with *A. oryzae* soil, T5-infected plants treated with *A. platensis* soil, T6 infected plants treated with *D. muscorum* foliar spray, T7-infected plants treated with *A. oryzae* foliar spray and T8-infected plants treated with *A. platensis* foliar application.) (Data represent mean ± SD, n = 3), (a–f Letters revered to significant in statically analysis).

**Table 2.** Effect of cyanobacteria on osmolytes (soluble sugar, soluble protein, and proline) mg g−<sup>1</sup> DW) contents of the infected pepper plant with *Fusarium* wilt. Data presented as means ± SD (n = 3). Data followed by letters are significantly different in the LSD test at *p* ≤ 0.05.

