Implications of the Propagation Method for the Phytochemistry of Nepeta cataria L. throughout a Growing Season

被引:1
作者
Gomes, Erik Nunes [1 ,2 ]
Yuan, Bo [1 ]
Patel, Harna K. [1 ]
Lockhart, Anthony [1 ,3 ,4 ]
Wyenandt, Christian A. [1 ,5 ]
Wu, Qingli [1 ,3 ,4 ]
Simon, James E. [1 ,3 ,4 ]
机构
[1] Rutgers State Univ, Dept Plant Biol, New Use Agr & Nat Plant Prod Program, New Brunswick, NJ 08901 USA
[2] Minist Educ Brazil, Fed Agcy Support & Evaluat Grad Educ CAPES, Brasilia, DF, Brazil
[3] Rutgers State Univ, Rutgers Core Facil Nat Prod & Bioanal, New Brunswick, NJ 08901 USA
[4] Rutgers State Univ, Ernest Mario Sch Pharm, Dept Med Chem, Piscataway, NJ 08854 USA
[5] Rutgers State Univ, Rutgers Agr Res & Extens Ctr, New Jersey Agr Expt Stn, Bridgeton, NJ 08302 USA
来源
MOLECULES | 2024年 / 29卷 / 09期
关键词
catnip; flowering; iridoid terpenes; nepetalactone; ontogeny; phenolic compounds; ESSENTIAL OIL; DEVELOPMENTAL REGULATION; LAVANDULA-ANGUSTIFOLIA; SECONDARY METABOLITES; GLANDULAR TRICHOMES; STEVIA-REBAUDIANA; BIOSYNTHESIS; GROWTH; LEAVES; CATNIP;
D O I
10.3390/molecules29092001
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Catnip (Nepeta cataria L.) plants produce a wide array of specialized metabolites with multiple applications for human health. The productivity of such metabolites, including nepetalactones, and natural insect repellents is influenced by the conditions under which the plants are cultivated. In this study, we assessed how field-grown catnip plants, transplanted after being propagated via either single-node stem cuttings or seeds, varied regarding their phytochemical composition throughout a growing season in two distinct environmental conditions (Pittstown and Upper Deerfield) in the state of New Jersey, United States. Iridoid terpenes were quantified in plant tissues via ultra-high-performance liquid chromatography with triple quadrupole mass spectrometry (UHPLC-QqQ-MS), and phenolic compounds (phenolic acids and flavonoids) were analyzed via UHPLC with diode-array detection (UHPLC-DAD). The highest contents of total nepetalactones in Pittstown were found at 6 weeks after transplanting (WAT) for both seedlings and cuttings (1305.4 and 1223.3 mg/100 g, respectively), while in Upper Deerfield, the highest contents for both propagules were at 11 WAT (1247.7 and 997.1 mg/100 g, respectively) for seed-propagated and stem cuttings). The highest concentration of nepetalactones was associated with floral-bud to partial-flowering stages. Because plants in Pittstown accumulated considerably more biomass than plants grown in Upper Deerfield, the difference in nepetalactone production per plant was striking, with peak productivity reaching only 598.9 mg per plant in Upper Deerfield and 1833.1 mg per plant in Pittstown. Phenolic acids accumulated in higher contents towards the end of the season in both locations, after a period of low precipitation, and flavone glycosides had similar accumulation patterns to nepetalactones. In both locations, rooted stem cuttings reached their maximum nepetalactone productivity, on average, four weeks later than seed-propagated plants, suggesting that seedlings have, overall, better agronomic performance.
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页数:23
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