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פותח על ידי קלירמאש פתרונות בע"מ -
Genetic, Developmental and Temporal Variability in Nitrate Accumulation and Nitrate Reductase Activity in Medicinal Herb Andrographis paniculata
Year:
2016
Source of publication :
Pedosphere
Authors :
ברנשטיין, נירית
;
.
Volume :
26
Co-Authors:
SAREER, O., Department of Botany, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
BERNSTEIN, N., Institute of Soil, Water and Environmental Sciences, Volcani Center, Bet Dagan, Israel
AHMAD, S., Department of Pharmacognosy, Faculty of Pharmacy, Jamia Hamdard (Hamdard University), New Delhi, India
UMAR, S., Department of Botany, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
Facilitators :
From page:
839
To page:
847
(
Total pages:
9
)
Abstract:
There is a growing concern over the presence of high concentrations of nitrate in orally consumed herbal remedies. Since nitrate accumulation in the plant body can vary with spatial location in plant and plant development and temporally with photoperiod, understanding the relations between these factors and nitrate contents in the consumed herbs are vital for the development of agrotechnical strategies for nitrate avoidance. Therefore, the distribution profiles of nitrate content and nitrate reductase (NR) activity were analyzed in 14 accessions of Andrographis paniculata (Burm.f.) Wall. ex Nees., a medicinal plant widely used as a component of many herbal teas and medicinal infusions. Significant variation in nitrate accumulation in the plant was observed between the accessions, and most contained nitrate levels beyond the safety limit recommended according to the European Commission's Scientific Committee on Food. Nitrate content increased with plant development and leaf age, and that in leaf segment was higher in the middle of the leaf than at its tip or base; the nitrate concentration in plant organ followed the order of petiole < leaf < stem, and it was lower at mid-day than in the early morning or evening. Gradients of NR activity were negatively correlated with nitrate content in all studied temporal and spatial profiles. Identification of the characteristic spatial and developmental profiles of nitrate accumulation and NR activity in A. paniculata can guide the development of harvest strategies, aiming at minimizing nitrate contents in the consumed herbal tissue. © 2016 Soil Science Society of China
Note:
Related Files :
accession
Andrographis paniculata
harvest strategy
leaf segment
plant development stage
vegetative tissue
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S1002-0160(15)60089-3
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24362
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:06
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Scientific Publication
Genetic, Developmental and Temporal Variability in Nitrate Accumulation and Nitrate Reductase Activity in Medicinal Herb Andrographis paniculata
26
SAREER, O., Department of Botany, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
BERNSTEIN, N., Institute of Soil, Water and Environmental Sciences, Volcani Center, Bet Dagan, Israel
AHMAD, S., Department of Pharmacognosy, Faculty of Pharmacy, Jamia Hamdard (Hamdard University), New Delhi, India
UMAR, S., Department of Botany, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
Genetic, Developmental and Temporal Variability in Nitrate Accumulation and Nitrate Reductase Activity in Medicinal Herb Andrographis paniculata
There is a growing concern over the presence of high concentrations of nitrate in orally consumed herbal remedies. Since nitrate accumulation in the plant body can vary with spatial location in plant and plant development and temporally with photoperiod, understanding the relations between these factors and nitrate contents in the consumed herbs are vital for the development of agrotechnical strategies for nitrate avoidance. Therefore, the distribution profiles of nitrate content and nitrate reductase (NR) activity were analyzed in 14 accessions of Andrographis paniculata (Burm.f.) Wall. ex Nees., a medicinal plant widely used as a component of many herbal teas and medicinal infusions. Significant variation in nitrate accumulation in the plant was observed between the accessions, and most contained nitrate levels beyond the safety limit recommended according to the European Commission's Scientific Committee on Food. Nitrate content increased with plant development and leaf age, and that in leaf segment was higher in the middle of the leaf than at its tip or base; the nitrate concentration in plant organ followed the order of petiole < leaf < stem, and it was lower at mid-day than in the early morning or evening. Gradients of NR activity were negatively correlated with nitrate content in all studied temporal and spatial profiles. Identification of the characteristic spatial and developmental profiles of nitrate accumulation and NR activity in A. paniculata can guide the development of harvest strategies, aiming at minimizing nitrate contents in the consumed herbal tissue. © 2016 Soil Science Society of China
Scientific Publication
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