facilitated the transformation of explants into leaf and stem; highest amounts of
biomass, ursolic acid and eugenol accumulations were observed within twenty to
twenty five days of incubation as well as maximum ursolic acid was accumulated
with (50 mg/l) yeast, (60 mg/l) of methyl jasmoante and (60 mg/l) of salicylic acid
from seventeen day old hairy roots and (50 mg/l) yeast, (0 mg/l) of methyl jasmoante and (0 mg/l) of salicylic acid from twenty one day old hairy roots; whereas
maximum eugenol was accumulated with (50 mg/l) yeast, (60 mg/l) of methyl
jasmoante and (0 mg/l) of salicylic acid from seventeen day old hairy roots and
(0 mg/l) yeast, (0 mg/l) of methyl jasmoante and (0 mg/l) of salicylic acid from
twenty one day old hairy roots. These data confirmed the importance of yeast, MJ
and salicylic acid contents present in O. tenuiflorum L plant (Sharan et al. 2019).
1.5 Conclusion
This chapter provides a detailed information about What is Elicitation? Types of
Elicitors along with applications of elicitors to increase productivity of secondary
metabolites. This chapter also includes the information about secondary metabolites
and its types such as alkaloid, glycoside, flavonoid and terpenoids etc. Elicitors are
the physical/chemical/biological/microbial substances which under stress conditions induce the biosynthesis of secondary metabolites of plants. Both biotic and
abiotic elicitors are used in the process. Most common secondary metabolites
Ferulic acid, cinnamic acid, vanillin, coumaric acid, silymarin, affinin, hypocrellin
A, steroiside, menthone, piperitone, glycyrrhizic acid, colchicine, thiocolchicoside,
phenolic acid, gymnemic acid, flavonoids are utilized the elicitation technique.
Elicitors are two types such as: abiotic and biotic. Abiotic elicitors such as salicylic
acid, methyl jasmonate, hydrogen peroxide, lanthanum, different hormones, light,
gamma rays and controlled temperature are used to generate secondary metabolites
of wheat grass, Thymus vulgaris, Silybum marianum, Shiraia bambusicola, Ajuga
bracteosa, broccoli plant, etc. Biotic elicitors like chitosan, rhizobacteria,
Rhizobium leguminosum, A. tenius, A. tumefacians, carrageenan, Streptomyces,
Rhizopus, dextran, yeast are used to develop or improvise secondary metabolites of
Khus, M. pulegium, T. cuneifolia, chickpea, V. vinifera, R. gmelini Turcz, C.
lusitanica, etc. Some secondary metabolites of C. aromaticus Benth, R. tomentosum, F. indica, R. serpentine, S. khasianum, O. tenuiflorum, S. rebaudiana etc. are
used both abiotic and biotic elicitors. In the Table 1.1 detailed tabulated information
of elicitors used to accumulate and increased productivity of secondary metabolites.
Elicitors are not only increase secondary metabolite production as well as increase
the defense mechanism, antioxidative, antimicrobial and enzymatic activities. This
data collectively express the detailed knowledge about the elicitors and its signal
transduction behavior. So if scientific minds hunts for secondary metabolites with
greater activity but with very lesser abundance, then elicitation is the future.
1 Elicitor Signal Transduction Leading to the Production of Plant …
31
biomass, ursolic acid and eugenol accumulations were observed within twenty to
twenty five days of incubation as well as maximum ursolic acid was accumulated
with (50 mg/l) yeast, (60 mg/l) of methyl jasmoante and (60 mg/l) of salicylic acid
from seventeen day old hairy roots and (50 mg/l) yeast, (0 mg/l) of methyl jasmoante and (0 mg/l) of salicylic acid from twenty one day old hairy roots; whereas
maximum eugenol was accumulated with (50 mg/l) yeast, (60 mg/l) of methyl
jasmoante and (0 mg/l) of salicylic acid from seventeen day old hairy roots and
(0 mg/l) yeast, (0 mg/l) of methyl jasmoante and (0 mg/l) of salicylic acid from
twenty one day old hairy roots. These data confirmed the importance of yeast, MJ
and salicylic acid contents present in O. tenuiflorum L plant (Sharan et al. 2019).
1.5 Conclusion
This chapter provides a detailed information about What is Elicitation? Types of
Elicitors along with applications of elicitors to increase productivity of secondary
metabolites. This chapter also includes the information about secondary metabolites
and its types such as alkaloid, glycoside, flavonoid and terpenoids etc. Elicitors are
the physical/chemical/biological/microbial substances which under stress conditions induce the biosynthesis of secondary metabolites of plants. Both biotic and
abiotic elicitors are used in the process. Most common secondary metabolites
Ferulic acid, cinnamic acid, vanillin, coumaric acid, silymarin, affinin, hypocrellin
A, steroiside, menthone, piperitone, glycyrrhizic acid, colchicine, thiocolchicoside,
phenolic acid, gymnemic acid, flavonoids are utilized the elicitation technique.
Elicitors are two types such as: abiotic and biotic. Abiotic elicitors such as salicylic
acid, methyl jasmonate, hydrogen peroxide, lanthanum, different hormones, light,
gamma rays and controlled temperature are used to generate secondary metabolites
of wheat grass, Thymus vulgaris, Silybum marianum, Shiraia bambusicola, Ajuga
bracteosa, broccoli plant, etc. Biotic elicitors like chitosan, rhizobacteria,
Rhizobium leguminosum, A. tenius, A. tumefacians, carrageenan, Streptomyces,
Rhizopus, dextran, yeast are used to develop or improvise secondary metabolites of
Khus, M. pulegium, T. cuneifolia, chickpea, V. vinifera, R. gmelini Turcz, C.
lusitanica, etc. Some secondary metabolites of C. aromaticus Benth, R. tomentosum, F. indica, R. serpentine, S. khasianum, O. tenuiflorum, S. rebaudiana etc. are
used both abiotic and biotic elicitors. In the Table 1.1 detailed tabulated information
of elicitors used to accumulate and increased productivity of secondary metabolites.
Elicitors are not only increase secondary metabolite production as well as increase
the defense mechanism, antioxidative, antimicrobial and enzymatic activities. This
data collectively express the detailed knowledge about the elicitors and its signal
transduction behavior. So if scientific minds hunts for secondary metabolites with
greater activity but with very lesser abundance, then elicitation is the future.
1 Elicitor Signal Transduction Leading to the Production of Plant …
31