Feasibility of Controlled Environment Production of Scutellaria Species

Stutte, Gary W.; Eraso, I.; Downing, K.B.

doi:10.17660/actahortic.2007.756.22

Cited by 4 publications

(3 citation statements)

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“…Seeds of S. barbata and S. lateriflora were selected for uniformity and presoaked in deionized water for 72 h at 4°C in the dark. This treatment had been found to increase the uniformity and percentage of germination (Stutte et al, 2007). After presoaking, six seeds were planted in 6 • 6 • 7.5-cm rockwool blocks (Grodanä, Hedehusene, Denmark) that had been prewetted with 1• Hoagland solution (Hoagland and Arnon, 1950).…”

Section: Methodsmentioning

confidence: 99%

“…As such, CE has the potential to increase the productivity and quality of medicinal plants (Pagliarulo et al, 2003;Stutte, 2006). Stutte et al (2007) conducted a number of experiments to determine the feasibility of growing Scutellaria species in CE and described the light and temperature requirements for germination and early establishment of S. barbata, S. baicalensis, and S. lateriflora. Stutte et al (2007) also reported that S. lateriflora and S. barbata had increased growth rate and reduced time to bloom by 7 to 10 d when grown in CE with CO 2 enrichment.…”

mentioning

confidence: 99%

“…Stutte et al (2007) conducted a number of experiments to determine the feasibility of growing Scutellaria species in CE and described the light and temperature requirements for germination and early establishment of S. barbata, S. baicalensis, and S. lateriflora. Stutte et al (2007) also reported that S. lateriflora and S. barbata had increased growth rate and reduced time to bloom by 7 to 10 d when grown in CE with CO 2 enrichment. They concluded that the long growth cycle (2 years or more) to produce a marketable rhizome of S. baicalensis did not lend itself to CE production.…”

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confidence: 99%

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Carbon Dioxide Enrichment Enhances Growth and Flavonoid Content of Two Scutellaria species

Stutte¹,

Eraso²,

Rimando³

2008

J. Amer. Soc. Hort. Sci.

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Scutellaria L. is a genus of herbaceous perennials of the Lamianaceae that includes several species with medicinal properties. The medicinal species of Scutellaria are rich in physiologically active flavonoids with a range of pharmacological activity. Experiments were conducted to determine the feasibility of increasing the growth rate and flavonoid content of Scutellaria barbata D. Don and Scutellaria lateriflora L. with CO2 enrichment in a controlled environment. Both species showed an increased growth rate and total biomass in response to CO2 enrichment from 400 to 1200 μmol·mol−1 CO2, and time to flowering was accelerated by 7 to 10 days. The bioactive flavonoids scutellarein, baicalin, apigenin, baicalein, and wogonin were detected in vegetative tissue of S. barbata. Total flavonoid content increased 50% with enrichment of CO2 to 1200 and 81% with 3000 μmol·mol−1. Scutellarein, baicalin, and apigenin concentrations increased with increasing CO2, whereas baicalein and wogonin did not. The flavonoids baicalin, baicalein, wogonin, and chrysin were detected in the vegetative tissue of S. lateriflora. The total concentration of the bioactive flavonoids measured in the vegetative tissue of S. lateriflora was much higher than S. barbata under ambient CO2 conditions (1144 vs. 249 μg·g−1 dry weight). The total content of the measured bioactive flavonoids increased 2.4 times with enrichment to 1200 μmol·mol−1 CO2, and 5.9 times with enrichment to 3000 μmol·mol−1 CO2. These results indicate that the yield and pharmaceutical quality of Scutellaria species can be enhanced with controlled environment production and CO2 enrichment.