NDLI: Foliar treatment with Lolium perenne (Poaceae) leaf extract alleviates salinity and nickel-induced growth inhibition in pea

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Foliar treatment with Lolium perenne (Poaceae) leaf extract alleviates salinity and nickel-induced growth inhibition in pea

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Brazilian Journal of Botany : Volume 39, Issue 1, March 2016

Brazilian Journal of Botany : Volume 38

Brazilian Journal of Botany : Volume 37

Brazilian Journal of Botany : Volume 36

Foliar treatment with Lolium perenne (Poaceae) leaf extract alleviates salinity and nickel-induced growth inhibition in pea

Content Provider	Springer Nature Link
Author	Javaid, Muhammad Mansoor Ali, Hafiz Haider Garcia Sanchez, Francisco Anjum, Muhammad Akbar Balal, Rashad Mukhtar Shahid, Muhammad Adnan Mattson, Neil Scott
Copyright Year	2016
Abstract	The plants of pea (Pisum sativum L.) were grown under NaCl and/or NiCl$_{2}$ stress, to comparatively evaluate stress-mitigating effects of pure proline and naturally proline-enriched Lolium perenne (L.) aqueous leaf extract. Both stress factors (salinity and nickel) significantly reduced plant biomass, chlorophyll content, photosynthetic activity, stomatal conductance, intercellular carbon dioxide (CO$_{2}$) level, number of stomata, stomatal size, water-use efficiency, relative water content (RWC), and the membrane stability index (MSI). However, the proline and glycinebetaine contents, lipid peroxidation, electrolyte leakage, and activities of antioxidant enzymes (superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, guaiacol peroxidase, and glutathione reductase) were significantly increased. Exogenously applied proline and Lolium perenne (LP) leaf extracts significantly overcame the nickel and/or salinity-induced toxic effects on growth, RWC, and various photosynthetic attributes. However, follow-up treatment with proline and LP-leaf-extract detoxified the stress caused by NiCl$_{2}$ and/or NaCl, by suppressing lipid peroxidation and electrolyte leakage, accelerating the antioxidant enzyme activities, and improving the MSI, leaf/root proline, and glycinebetaine contents. LP-leaf-extract proved to be better than pure proline for improving growth, gas exchange parameters, osmolytes, RWC, and antioxidant enzyme activities. As LP-leaf-extract was enriched with a substantial amount of proline along with many other essential osmoprotectants, it was found to be as effective as pure proline in ameliorating growth, some major physiological attributes, and non-enzymatic and enzymatic antioxidant activities in the pea, under nickel and/or salinity stress. Thus, it could be used as an alternative inexpensive source of proline, to be used as a mitigating agent for protecting plants against the deleterious effects of nickel and/or salinity stress.
Starting Page	453
Ending Page	463
Page Count	11
File Format	PDF
ISSN	01008404
Journal	Brazilian Journal of Botany
Volume Number	39
Issue Number	2
e-ISSN	18069959
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-03-01
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Salt stress Plant Systematics/Taxonomy/Biogeography Proline Antioxidant Lolium perenne Photosynthesis Nickel stress
Content Type	Text
Resource Type	Article
Subject	Plant Science

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Foliar treatment with Lolium perenne (Poaceae) leaf extract alleviates salinity and nickel-induced growth inhibition in pea