Foliar Application of Glycine Betaine Affects Morpho-physiological, Biochemical and Fruit Quality Traits of Thomson Navel Orange Under Deficit Irrigation

Delfani, Katayoun; Asadi, Mahmoud; Golein, Behrouz; Babakhani, Babak; Jadid, Roghayeh Razeghi

doi:10.1007/s00344-022-10753-8

Cited by 7 publications

(1 citation statement)

References 69 publications

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“…Thus, he foliar application of glycine betaine has been shown to improve growth, upregulate osmoprotection and osmoregulation, increase relative water content, net photosynthetic rate, and catalase activity, decrease photorespiration, ion leakage, and lipid peroxidation, protect the oxygen-evolving complex, and prevent chlorosis [ 31 ]. Probably, it is this feature that makes it possible to maintain the hydration of tissues during drought, salinity and water stress [ 32 , 33 , 34 ]. In addition, glycine betaine is able to significantly (three times) improve stomatal conduction [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Heterologous codA Gene Expression Leads to Mitigation of Salt Stress Effects and Modulates Developmental Processes

Raldugina,

Bogoutdinova,

Shelepova

et al. 2023

IJMS

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Transgenic tobacco plants overexpressing the choline oxidase gene from A. globiformis showed an increase in resistance at the level of primary and secondary biosynthesis of metabolites, removing the damage characteristic of salinity and stabilizing the condition of plants. We used 200 mM NaCl, which inhibits the growth of tobacco plants at all stages of development. Leaves of transgenic and wild-type (WT) plants Nicotiána tabácum were used for biochemical, cytological and molecular biological analysis. However, for transgenic lines cultivated under normal conditions (without salinity), we noted juvenile characteristics, delay in flowering, and slowing down of development, including the photosynthetic apparatus. This caused changes in the amount of chlorophyll, a delay in the plastid grana development with the preservation of prolamellar bodies. It also caused changes in the amount of sugars and indirectly downstream processes. A significant change in the activity of antioxidant enzymes and a change in metabolism is probably compensated by the regulation of a number of genes, the expression level of which was also changed. Thus, the tolerance of transgenic tobacco plants to salinity, which manifested itself as a result of the constitutive expression of codA, demonstrates an advantage over WT plants, but in the absence of salinity, transgenic plants did not have such advantages due to juvenilization.

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