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A comparative assessment of photosynthetic pigments and defense enzymes in ex vitro and in vitro propagated plants of banana (Musa spp.)

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Title A comparative assessment of photosynthetic pigments and defense enzymes in ex vitro and in vitro propagated plants of banana (Musa spp.)
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Creator S. Uma, R. Karthic, S.Kalpana, S. Backiyarani
 
Subject Ex vitro and in vitro propagation, Plantlets, Red Banana (AAA), Nendran (AAB), Rasthali (AAB), Ney Poovan (AA), and Monthan (ABB)
 
Description Bananas (Musa spp.) are of considerable importance as a staple food crop and a source of livelihood for a significant population. They are widely cultivated in tropical and subtropical regions worldwide, with a total cultivated area of 5.3 million hectares. The major banana-producing regions are Asia, Latin America, and Africa. Among these, India is the leading nation in terms of banana production, yielding around 33 million tonnes annually from an area of 0.92 million hectares (FAOSTAT, 2021). Bananas are among the most traded fruits in the world. There are over 1000 types of bananas grown and consumed worldwide. Among them cavendish group banana dominate the markets particularly cultivar Grand Naine, which accounts for around 47 percent of global production (FAO, 2023).
Both ex vitro and in vitro propagation techniques play crucial roles in banana production. However, there is limited knowledge on the comparison of physiological functions between plantlets derived from these methods. The assessment of physiological functions in plantlets during the nursery stage holds significant importance, as it provides a comprehensive understanding of their responses to growth conditions. Therefore, this study aimed to estimate the levels of photosynthetic pigments, including chlorophyll a, b, total chlorophyll, and carotenoids, as well as evaluate the activity of defense enzymes such as superoxide dismutase (SOD), catalase (CAT), phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO), and peroxidase (POX) in ex vitro and in vitro propagated plantlets of five distinct banana cultivars, namely Red Banana (AAA), Nendran (AAB), Rasthali (AAB), Ney Poovan (AA), and Monthan (ABB). The results demonstrated significant variations in both photosynthetic pigments and antioxidant defense enzyme activities between the two propagation methods. Ex vitro propagated plantlets exhibited higher levels of photosynthetic pigments and defense enzymes in compared to in vitro propagated plants. These results support ex vitro propagation to produce physiologically active planting material in assessed banana cultivars.
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Date 2024-04-08T09:57:55Z
2024-04-08T09:57:55Z
2023-08-11
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/81893
 
Language English
 
Relation Not Available;
 
Publisher Biocatalysis and Agricultural Biotechnology