Influencing the Product Quality by Applying Drought Stress During the Cultivation of Medicinal Plants

Author(s):  
Maik Kleinwächter ◽  
Dirk Selmar
Author(s):  
Dirk Selmar ◽  
Maik Kleinwächter ◽  
Sara Abouzeid ◽  
Mahdi Yahyazadeh ◽  
Melanie Nowak

2017 ◽  
Vol 14 (3) ◽  
pp. 1033-1042 ◽  
Author(s):  
Parisa Sharifi

ABSTRACT: The side effects of chemical drugs and the human tendency to make greater use of natural products in order to keep their health as well as problems of modern medical system caused more attention of human to medicinal plants. Hyssop (Hyssopus officinalis) is a plant of the family Lamiaceae and is one of the most important medicinal plants containing essential oils. Despite of the other crops, medicinal plants are the plants that quality of materials compared to their quantity is much more important and necessary. Today using symbiotic microorganisms with plants as the bio-fertilizer for providing nutrients is considered. Among plant growth promoting rhizobacteria, Azospirillum, Pseudomonas and Bacillus can be pointed out. It was observed that using the bio-fertilizer Nitroxin and phosphate solubilizing bacteria on Chamomile increased vegetative yield, seed yield and essential oil yield. In order to study the effect of PGPR, salicylic acid and drought stress on growth indices, the chlorophyll and essential oil of hyssop,a factorial based on a completely randomized design with three replications was conducted at the research greenhouse, Faculty of Agriculture, … University, during 2013- 2014. Treatments were drought stress, salicylic acid and PGPR. Results showed that drought stress reduced the growth and physiologic characteristics and increased essential oil percentand accordingly Hyssop essential oil yield increased. Also, salicylic acid caused the increase in the yield, physiologic and essential oil traits and avoided stress injuries and compensateddecrease in growth traits. Growth promoting bacteria by producing some metabolites such as growth regulators, or types of vitamins as well as improved access to nutrients were directly increase plant growthand development. Among used bacteria, Azospirillum had the greatest impact on improving the measured traits.


2018 ◽  
Vol 47 (4) ◽  
pp. 975-983
Author(s):  
Amal Fadl Abdelkader ◽  
Hala Ragab Nosair

This present work deals with monitoring some molecular aspects standing beyond the varied production of volatile oil in three medicinal plants (Ocimum basilicum, B, Mentha longifolia, M and Origanum majorana, O) after ten days of exposure to drought stress by using 250 mM mannitol as a drought inducer. The results showed that proline has increased in all drought-stressed plants as compared to the control. Four protein bands (210, 70, 63 and 18 kDa) have disappeared in stressed B-plant, in addition to low molecular weight newly expressed protein bands (16-78 kDa). The protein polymorphism has varied among the species and ranged from 16.66 to 54.54%. RAPD-DNA technique indicated high similarity of genomic-DNA in stressed and unstressed plants. GC-MS screened intensive fluctuations within the pool of phytochemical compounds. The genomic DNA structure was generally stable under drought stress despite of new proteins expression which mediated the induction of chemical compounds with antioxidant property to cope with the drought stress.


2018 ◽  
Author(s):  
Amal Abdelkader ◽  
Hala Nosair

Drought stress is an environmental serious problem threatening medicinal plants. The aim of this work was monitoring the molecular aspects standing beyond the varied production of volatile oil in three medicinal plants (Ocimum basilicum, B, Mentha longifolia, M and Origanummajorana, O) after ten days of exposure to drought stress by using 250 mM mannitol as a drought inducer. The results viewed that proline has increased in all drought-stressed plants as compared to the control. Four protein bands (210, 70, 63 and 18 kDa) have been disappeared in stressed B-plant, in addition to low molecular weight-newly expressed protein bands (16-78 kDa). The varied protein polymorphism among the species ranged from 16.66% to 54.54%. RAPD-DNA technique indicated high similarity of genomic-DNA in stressed and unstressed plants. GC-MS screened intensive fluctuations within the pool of phytochemical compounds. The genomic DNA structure was generally stable under drought stress despite the expression of new proteins mediated the induction of chemical compounds with antioxidant property to cope with the drought stress.


2018 ◽  
Vol 9 (3) ◽  
pp. 389
Author(s):  
Serilaila Serilaila

<p>Kekerit which contains grains, rhizomes, and medicinal plants commonly consumed by the puerperal mother in Imigrasi Permu  Village of Kepahiang Regency, it was believed to be useful to restore health. The study was to find out the culture of consuming kekerit snack on postpartum mothers to restore health. A qualitative study of ethnographic approaches was performed on mothers who had given birth at Imigrasi Permu Village in April-October 2017 to 7 core informants and 5 additional informants with a purposive sample and snowball techniques through an in-depth interview to data saturation. Data analysis was using an editing analysis model. The result showed that Kekerit was a snack consisting of 30-40 ingredients and become a cultural snack for postpartum mother that useful for warm the body, reduce bloating and appetite. Development of kekerit snack is needed with further research, socialization, and cooperation to improve the product quality so it is feasible to be good healthy food and using local wisdom.</p>


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