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| Chen,Yuhang; Zhu,Zaibiao; Guo,Qiaosheng; Zhang,Lixia; Zhang,Xiaoming. |
| Prunella vulgaris L. (Labiatae) contains a variety of structurally diverse natural products, primarily rosmarinic acid (RA), ursolic acid (UA) and oleanolic acid (OA), which possess a wide array of biological properties. In the present study, P. vulgaris was harvested at three developmental stages (vegetative, full-flowering and mature-fruiting stages), dissected into stem and leaf tissues and assayed for chemical contents using high performance liquid chromatography. Significant changes in the concentrations of the major secondary metabolites (RA, UA and OA) were observed at the different development stages. The highest concentrations of RA, UA and OA were found at the full-flowering stage (15.83 mg/g dry weight (DW) RA, 1.77 mg/g DW UA and 0.65 mg/g DW... |
| Tipo: Journal article |
Palavras-chave: Prunella vulgaris L.; Ontogenetic and morphogenetic variation; Rosmarinic acid; Ursolic acid; Oleanolic acid. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000200009 |
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| Chen,Yuhang; Liu,Li; Guo,Qiaosheng; Zhu,Zaibiao; Zhang,Lixia. |
| BACKGROUND: Prunella vulgaris L. is a medical plant cultivated in sloping, sun-shaded areas in China. Recently, owing to air-environmental stress, especially drought stress strongly inhibits plant growth and development, the appropriate fertilizer supply can alleviate these effects. However, these is little information about their effects on P. vulgaris growing in arid and semi-arid areas with limited water and fertilizer supply. RESULTS: In this study, water stress decreased the photosynthetic pigment contents, inhibited photosynthetic efficiency, induced photodamage in photosystem 2 (PS2), and decreased leaf instantaneous WUE (WUEi). The decreased net photosynthetic rate (Pn) under medium drought stress compared with the control might result from... |
| Tipo: Journal article |
Palavras-chave: Prunella vulgaris L N; P and K fertilizer Drought Photosynthesis Water use efficiency. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602016000100012 |
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| Chen,Lanlan; Zhu,Zaibiao; Guo,Qiaosheng; Guo,Jun; Huang,Zhigang; Shi,Yongtao; Wen,Zhencui. |
| ABSTRACT: Monochasma savatieri Franch. ex Maxim is a perennial, parasitic herb used in traditional Chinese medicine and its wild resources have decreased sharply in recent years due to destructively harvesting and habitat destruction. Haustorium formation is a key event of parasites, but the concentrations of haustorium-inducing factors vary with species and cultivation conditions. In this study, we investigated the effects of the 2,6-dimethoxy-p-benzoquinone (DMBQ) concentration and cultivation density on the growth traits, haustorium formation and biomass of M. savatieri in the absence of a host plant. The results showed that both the DMBQ concentration and cultivation density regulated growth traits, haustorium formation and biomass in M. savatieri. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artificial cultivation; Density; DMBQ; Fuzzy membership function; Growth promotion. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300202 |
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