Role of<i>Ulva lactuca</i>Extract in Alleviation of Salinity Stress on Wheat Seedlings

Ibrahim, Walid; Ali, Refaat M.; Hemida, Khaulood A.; Moussa, Suaad

doi:10.1155/2014/847290

Cited by 31 publications

(12 citation statements)

References 31 publications

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“…Such decrease or increase in POD activity can be attributed to the presence of antioxidant compounds such as AsA, Pro, betaine and glutathione in halophytic extracts which have the potential to reduce cell damage caused by ROS. These results being in harmony with those reported by Ibrahim et al (2014), they observed a decrease in the activities of antioxidant enzymes in salinity stressed wheat seedlings, while presoaking of grains with Ulva lactuca extract has increased them.…”

Section: Discussionsupporting

confidence: 91%

Impact of Some Halophytic Extracts on the Antioxidant System of Salt-Stressed Safflower (Carthamus tinctorius L.)

El-Shourbagy

Saad‐Allah

Foda

et al. 2017

Journal of Plant Production

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A pots experiment was conducted in the greenhouse governorate during the winter season 2015-2016 to study the response of salt-stressed safflower to extracts of two types of naturally growing costal halophytes, Z. album and H. strobilaceum. Safflower seeds were presoaked either in distilled water or 1% halophytic extract for 24 hrs then sown in plastic pots containing 2:1 w/w clay sandy soil according to the Randomized Complete Block Design until reaching the preflowering stage. After the initiation of cotyledonary leaves, seedlings were divided into two main groups: the first was treated with 1% halophytic extracts as presoaking (pre-treatment) or foliar spray application (post-treatment), while the second was specific for control treatments. Each of which was then divided into two subgroups; unstressed and stressed. Results showed that salt stress imposed negative consequences on growth and metabolic properties of safflower, whereas the extracts have helped the plant to adjust and enhance its performance under salt stress through induction of osmoprotectants, redox homeostasis and membrane integrity.

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Section: Discussionsupporting

confidence: 91%

Impact of Some Halophytic Extracts on the Antioxidant System of Salt-Stressed Safflower (Carthamus tinctorius L.)

El-Shourbagy

Saad‐Allah

Foda

et al. 2017

Journal of Plant Production

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“…[ 28 , 29 , 30 , 31 , 32 ]. Other common species include Fucus serratus , Ulva lactuca, and Kappaphycus alvarezii [ 33 , 34 , 35 , 36 , 37 , 38 ]. The majority of commercially available algal-based biostimulants are aqueous extracts.…”

Section: Extraction Techniques Chemical Characteristics Of Macroamentioning

confidence: 99%

“…The application of Ulva lactuca extracts to Triticum aestivum seedlings under salinity enhanced plant fresh and dry weigh, APX, and glutathione reductase (GR) activities at a 1% application rate. At 10%, it increased SOD and CAT activities [ 35 ]. A significant increase of activities of SOD, APX, CAT, and POD was also found in wheat plants ( T. aestivum L., cv.…”

Section: Mechanisms Of Salinity Stress Tolerance In Macro and Micrmentioning

confidence: 99%

Enhancing Sustainability by Improving Plant Salt Tolerance through Macro- and Micro-Algal Biostimulants

Carillo

Ciarmiello

Woodrow

et al. 2020

Biology

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Algal biomass, extracts, or derivatives have long been considered a valuable material to bring benefits to humans and cultivated plants. In the last decades, it became evident that algal formulations can induce multiple effects on crops (including an increase in biomass, yield, and quality), and that algal extracts contain a series of bioactive compounds and signaling molecules, in addition to mineral and organic nutrients. The need to reduce the non-renewable chemical input in agriculture has recently prompted an increase in the use of algal extracts as a plant biostimulant, also because of their ability to promote plant growth in suboptimal conditions such as saline environments is beneficial. In this article, we discuss some research areas that are critical for the implementation in agriculture of macro- and microalgae extracts as plant biostimulants. Specifically, we provide an overview of current knowledge and achievements about extraction methods, compositions, and action mechanisms of algal extracts, focusing on salt-stress tolerance. We also outline current limitations and possible research avenues. We conclude that the comparison and the integration of knowledge on the molecular and physiological response of plants to salt and to algal extracts should also guide the extraction procedures and application methods. The effects of algal biostimulants have been mainly investigated from an applied perspective, and the exploitation of different scientific disciplines is still much needed for the development of new sustainable strategies to increase crop tolerance to salt stress.

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“…These authors found that when spraying Vigna mungo (L.) Hepper plants with extract of Ulva reticulata Forsskal seaweed at 2%, the levels of chlorophyll, proteins, sugars and starch increased significantly. The increase in chlorophyll content can be explained by the bioactive components found in U. lactuca extracts, such as ascorbic acid, betaine, glutathione and proline, which would actively participate in the alleviation during stress periods of plants (Ibrahim et al, 2014). A study conducted by Mansori et al (2015) showed that plants of sage (Salvia officinalis L.) under water stress conditions showed increased glycine betaine levels, but these decreased significantly when extracts of Ulva rigida C. Agardh at 50% were applied.…”

Section: Production Parameters In Lettuce With the Use Of Pellets Andmentioning

confidence: 99%

Effect of pellets made of waste materials from the paper industry enhanced with seaweed (Ulva lactuca L.) on N mineralization and lettuce production

Martin

Undurraga

Quezada

et al. 2016

Chilean J. Agric. Res.

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The need to reduce the use of traditional fertilizers and prevent soil degradation demands the search for new ways of fertilization. The combined application of waste materials (generated by the paper industry) and seaweed may be an alternative source of fertilization. The objective of this study was to evaluate the effect of pellets made of waste materials ash and sludge, produced by the paper industry with the addition of seaweed (Ulva lactuca L.) on the production of lettuce (Lactuca sativa L.) as an indicator plant and N mineralization in the soil. Two trials were conducted on an Entisol soil. The first trial evaluated the productive response of lettuce to the combined application of pellet+seaweed. Lettuce plants were grown in pots under greenhouse conditions for 3-mo. Three types of pellets, with and without seaweed added, were applied in doses of 10, 20, and 30 t ha . N mineralization was measured by 12 wk incubation, evaluating the three types of pellets with and without the addition of seaweed. The results showed that all the combined pellet+seaweed treatments had higher aerial biomass production (p ≤ 0.05) and increased chlorophyll content. The aerial biomass production reached 4.16 g pot -1 and was 7-fold higher than pellet treatments without seaweed, while chlorophyll content was 17% higher (p ≤ 0.05). In terms of N mineralization, the maximum release was recorded in the Pellet 3+seaweed treatment, reaching 55 mg kg -1 . All the treatments with seaweed (p ≤ 0.05) better higher N mineralization values compared to the treatments without seaweed. Similarly, increased values for potentially mineralizable N and mineralization rate constant were observed in the treatments that included pellets+seaweed and seaweed alone compared to those consisting of pellets alone. The pellets+seaweed amendments resulted in an increase in soil N mineralization and production parameters of lettuce.

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Role ofUlva lactucaExtract in Alleviation of Salinity Stress on Wheat Seedlings

Cited by 31 publications

References 31 publications

Impact of Some Halophytic Extracts on the Antioxidant System of Salt-Stressed Safflower (Carthamus tinctorius L.)

Impact of Some Halophytic Extracts on the Antioxidant System of Salt-Stressed Safflower (Carthamus tinctorius L.)

Enhancing Sustainability by Improving Plant Salt Tolerance through Macro- and Micro-Algal Biostimulants

Effect of pellets made of waste materials from the paper industry enhanced with seaweed (Ulva lactuca L.) on N mineralization and lettuce production

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