Red LED light promotes biomass, flowering and secondary metabolites accumulation in hydroponically grown Hypericum perforatum L. (cv. Topas)

The plant hormone jasmonic acid (JA) fine tunes the growth–defense dilemma by inhibiting plant growth and stimulating the accumulation of secondary compounds. We investigated the interactions between JA and phytochrome B signaling on growth and the accumulation of selected secondary metabolites in Hypericum perforatum L., a medically important plant, by spraying plants with methyl jasmonate (MeJA) and by adding far-red (FR) lighting. MeJA inhibited plant growth, decreased fructose concentration, and enhanced the accumulation of most secondary metabolites. FR enhanced plant growth and starch accumulation and did not decrease the accumulation of most secondary metabolites. MeJA and FR acted mostly independently with no observable interactions on plant growth or secondary metabolite levels. The accumulation of different compounds (e.g., hypericin, flavonols, flavan-3-ols, and phenolic acid) in shoots, roots, and root exudates showed different responses to the two treatments. These findings indicate that the relationship between growth and secondary compound accumulation is specific and depends on the classes of compounds and/or their organ location. The combined application of MeJA and FR enhanced the accumulation of most secondary compounds without compromising plant growth. Thus, the negative correlations between biomass and the content of secondary compounds predicted by the growth-defense dilemma were overcome.

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Production of adventitious roots and secondary metabolites by Hypericum perforatum L. in a bioreactor

Bioresource Technology ◽

10.1016/j.biortech.2010.01.115 ◽

2010 ◽

Vol 101 (12) ◽

pp. 4708-4716 ◽

Cited By ~ 111

Author(s):

Xi-Hua Cui ◽

Debasis Chakrabarty ◽

Eun-Jung Lee ◽

Kee-Yoeup Paek

Keyword(s):

Secondary Metabolites ◽

Adventitious Roots ◽

Hypericum Perforatum ◽

Hypericum Perforatum L

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Prenylated β-diketones, two new additions to the family of biologically active Hypericum perforatum L. (Hypericaceae) secondary metabolites

Food and Chemical Toxicology ◽

10.1016/j.fct.2018.05.009 ◽

2018 ◽

Vol 118 ◽

pp. 505-513 ◽

Cited By ~ 3

Author(s):

Niko S. Radulović ◽

Marija S. Genčić ◽

Nikola M. Stojanović ◽

Pavle J. Randjelović ◽

Nicolas Baldovini ◽

...

Keyword(s):

Secondary Metabolites ◽

Hypericum Perforatum ◽

Biologically Active ◽

The Family ◽

Hypericum Perforatum L

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Hypericum Perforatum L., H. Maculatum Crantz., H. Calycinum L. and H. pulchrum L.: Phytochemical and Morphological Studies

Natural Product Communications ◽

10.1177/1934578x0600101211 ◽

2006 ◽

Vol 1 (12) ◽

pp. 1934578X0600101 ◽

Cited By ~ 4

Author(s):

Gelsomina Fico ◽

Sara Vitalini ◽

Noemi Colombo ◽

Franca Tomè

Keyword(s):

Secondary Metabolites ◽

Hypericum Perforatum ◽

Qualitative Difference ◽

Clear Correlation ◽

Main Constituent ◽

Flavonoid Content ◽

Aerial Parts ◽

Morphological Studies ◽

Reproductive Phase ◽

Hypericum Perforatum L

Four species of Hypericum growing in Italy were characterized morphologically and chemically: Hypericum perforatum L., H. maculatum Crantz., H. calycinum L. and H. pulchrum L. The composition of secondary metabolites (phloroglucinols, naphthodianthrones, flavonoids) in the aerial parts of plants collected in different habitats was analysed. The four species show different compositions of phloroglucinols and naphthodianthrones, but there was no qualitative difference in flavonoid content of the species analysed. Study of main-constituent variation during the ontogenetic cycle showed that hypericin decreases and hyperforin increases during the reproductive phase. In St. John's Wort, hypericin and hyperforin are thought to be localised in black nodules. Our investigation shows no clear correlation between either the presence or absence of nodules and hypericin or hyperforin content.

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