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Table 5 Effect of quaternary combinations of natural extracts on S. cerevisiae growth under control conditions (YPD without stress), saline (NaCl and LiCl), osmotic (Sorbitol) and temperature (10 °C and 37 °C) stress

From: A fast method to evaluate in a combinatorial manner the synergistic effect of different biostimulants for promoting growth or tolerance against abiotic stress

 

No-stress

NaCl 1 M

LiCl 0.15 M

Sorbitol 1.8 M

37 °C

10 °C

B2–B3–B4

=

+

+

=

=

=

B1–B2–B3–B4

=

=

=

=

=

=

B2–B3–B4–B5

=

+

+

+

=

+

B2–B3–B4–B6

=

=

=

=

=

=

B2–B3–B4–B7

=

=

=

=

=

=

B2–B3–B4–B8

B2–B3–B4–B9

B2–B3–B4–B10

=

W

W

=

=

B3–B4–B5

=

=

+

=

=

=

B1–B3–B4–B5

=

W

+

=

=

=

B3–B4–B5–B6

=

=

=

=

=

=

B3–B4–B5–B7

=

=

=

=

=

=

B3–B4–B5–B8

=

B3–B4–B5–B9

B3–B4–B5–B10

=

=

+

W

=

=

  1. In quaternary combinations, 200 µg/ml of each product were used, except for B8 and B9, which used 50 µg/ml
  2. Three independent complete experiments, each using three biological and three technical replicates per plate, were performed with similar results
  3. (+) Growth stimulation; (=) no observable effect; (−) negative; (W) weak