scholarly journals Floral and Pollen Traits of Moringa oleifera Lam. and Moringa peregrina (Forssk.) Fiori Provide Reproductive Adaptations for Arid Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1090
Author(s):  
Yiftach Vaknin ◽  
Dan Eisikowitch ◽  
Adina Mishal
Keyword(s):  
Water Stress ◽  
Reproductive Success ◽  
Chemical Analysis ◽  
Arid Regions ◽  
Moringa Oleifera ◽  
Pollen Grains ◽  
Food Crops ◽  
Arid Conditions ◽  
Moringa Peregrina ◽  
Moringa Oleifera Lam

Our study attempted to elucidate the significance of floral and pollen traits of the highly nutritious tropical trees Moringa oleifera and Moringa peregrina for their reproductive success under arid conditions. We found that the pollen grains of both species were immersed in a pollenkitt that constituted ~ 60% of the pollen. Successful pollination was achieved by large bees inserting the pollen into a narrow stylar tube. We found that, upon removal of the pollenkitt, approximately 65% fewer pollen grains penetrated the stylar tube for both species. The pollenkitt protected against heat and desiccation, while removing the pollenkitt resulted in significantly reduced levels of the viability of pollen grains, especially in M. oleifera, and significantly reduced levels of germinability in both species. The stylar tube provided high protection for pollen grains against heat and desiccation even when the pollenkitt was removed. Chemical analysis of pollenkitts of the two species revealed a waxy blend of 21 hydrocarbon compounds, in which n-alkanes constituted > 90% of the compounds and their identity corresponded to known plant and animal hydrocarbons, associated with protection against heat and water stress. We concluded that, under arid conditions, the reproductive success of both Moringa species is potentially enhanced by their unique floral and pollen traits. This supports the prospect of cultivating M. oleifera and Moringa peregrina as food crops in arid regions across the globe.

scholarly journals Effect of different vermicompost doses and water stress conditions on plant growth and biochemical profile in medicinal plant, Moringa oleifera Lam

2020 ◽  
Vol 41 (2) ◽  
pp. 240-246 ◽  
Author(s):  
J.M. Guzmán-Albores ◽  
◽  
J.A. Montes-Molina ◽  
J.H. Castañón-González ◽  
M. Abud-Archila ◽  
...  
Keyword(s):  
Water Stress ◽  
Plant Growth ◽  
Medicinal Plant ◽  
Moringa Oleifera ◽  
Stress Conditions ◽  
Biochemical Profile ◽  
Moringa Oleifera Lam

Review: Water stress in sheep raised under arid conditions

2014 ◽  
Vol 94 (2) ◽  
pp. 243-257 ◽  
Author(s):  
Mabelle Chedid ◽  
Lina S. Jaber ◽  
Sylvie Giger-Reverdin ◽  
Christine Duvaux-Ponter ◽  
Shadi K. Hamadeh
Keyword(s):  
Water Stress ◽  
Arid Regions ◽  
Small Volume ◽  
Water Shortage ◽  
Blood Parameters ◽  
Economic Losses ◽  
Physiological Indicators ◽  
Arid Conditions ◽  
Vitamin C Supplementation ◽  
Review Reports

Chedid, M., Jaber, L. S., Giger-Reverdin, S., Duvaux-Ponter, C. and Hamadeh, S. K. 2014. Review: Water stress in sheep raised under arid conditions. Can. J. Anim. Sci. 94: 243–257. Sheep breeds which are indigenous to arid and semi-arid regions are known for their ability to adapt to rustic environments, to climatic variations as well as to shortages in resources. Water scarcity, often combined with heat stress, is a common challenge facing these animals, causing physiological perturbations and affecting the animal's productivity. This review reports the effect of different forms of water stress on physiological indicators, blood parameters, thermoregulation and immunological status in sheep. Although the breed effect may be significant, the following are generally observed common responses: drop in feed intake and weight loss, increase in evaporative cooling through panting, production of a small volume of highly concentrated urine, haemoconcentration, high blood osmolality, and immunosuppression. Prolonged water shortage may affect lamb birth weight and survival, and lead to a decrease in milk production, especially in non-adapted breeds, which could lead to important economic losses, as reported in heat-stressed sheep husbandries. Novel stress alleviation approaches are also presented, such as vitamin C supplementation.

Monthly variation and impact of pollution on the nutritional value of Moringa oleifera (Lam.) Leaves

2017 ◽  
Vol 6 (10) ◽  
pp. 5535
Author(s):  
Sachin Umesh Dubey ◽  
Madhu Kanta Kapoor
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Moringa Oleifera ◽  
Reducing Sugars ◽  
Essential Amino Acids ◽  
Monthly Variation ◽  
Vehicular Pollution ◽  
Total Sugars ◽  
Urban Sewage ◽  
Moringa Oleifera Lam

Moringa oleifera Lam., commonly found tree in sub-Himalayan tracts of India, Pakistan, Bangladesh and Afghanistan has a high nutrition value. The leaves, flowers and immature pods of Moringa are used as a vegetable in many countries. The leaves are highly nutritious and medicinal in nature. They are a rich source of iron, calcium, vitamin A, vitamin C, proteins, and essential amino acids. Hence Moringa leaves can be a good source of protein for the vegetarians and the under-nourished population. Present investigation deals with the study of monthly variation in the nutritional value of Moringa leaves from the month of June 2015 to January 2016. Impact of urban sewage pollution and roadside vehicular pollution on the amount of reducing and total sugars, chlorophylls (a, b and total), proteins, vitamin-C and pH of the leaves, was also studied. Results revealed that the highest amounts of reducing sugars, total sugars, chlorophyll b and total chlorophyll during October 2015 whereas proteins, chlorophyll a, vitamin C and pH were highest during January 2016. Leaf samples collected from all the study sites exhibited minimum amounts of reducing sugars, chlorophylls (a, b and total) and pH during July 2015 whereas total sugars were lowest during December 2015. Proteins and vitamin C values were lowest during August and June 2015 respectively. Sewage and vehicular pollution showed an adverse effect on the nutritional contents of Moringa oleifera leaves. Of the two polluted sites, samples from near the sewage flow showed higher impact.

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