Comparative study of micropropagated plants of Grand Naine banana during in vitro regeneration and ex vitro acclimatization

Talla, Sai Krishna; Bagari, Prasad; Manga, Sujatha; Mahender, Anumalla; Mamidala, Praveen

doi:10.1016/j.bcab.2022.102325

Cited by 4 publications

(1 citation statement)

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“…Banana has now been produced by millions of people across 150 nations (Alagesan et al 2019). Among many cultivars, the triploid banana cultivar (Musa acuminata AAA) is one of the leading commercial cultivars due to its sweet taste and fruit quality (Talla et al 2022). However, drought stress caused by climate change has signi cantly constrained banana yield (Varma and Bebber 2019).…”

Section: Introductionmentioning

confidence: 99%

Drought Stress Alters Photosynthetic and Carbohydrate-related Proteins in Leaves of Banana

Lau

Pua

Saidi

et al. 2023

Preprint

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Drought is the most prominent limiting factor to crop productivity, posing a severe threat to food security. However, how plants respond to drought stress and post-drought recovery remains unclear. Therefore, this study determined the morphological and protein responses of banana plants (Musa acuminata cultivar Berangan) affected by drought stress, followed by water recovery. The results showed that drought significantly reduced the leaf area, plant height, fresh weight, stem circumference, leaf relative water content, chlorophyll contents, and root length of the bananas. In contrast, relative electrolyte leakage, proline, malondialdehyde (MDA) and hydrogen peroxide contents, and the activities of antioxidant enzymes, including catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), peroxidase, and superoxide dismutase, were induced in the drought-treated banana leaves. However, the relative water content, MDA and hydrogen peroxide contents, and antioxidant enzyme activities, including CAT, APX, and GR, were comparable with well-watered plants after water recovery. Changes in the protein content between well-watered, drought-stressed, and recovered banana plants were determined using tandem mass tags (TMT)-based quantitative proteomics. Of the 1,018 differentially abundant proteins, 274 were significantly changed. The identified proteins differing between the treatments were mainly related to carbohydrate, energy and amino acid metabolisms, genetic information processing, and secondary metabolite biosynthesis. Our data may assist in developing a complete proteome dataset which could be valuable for developing drought-tolerant bananas.

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Section: Introductionmentioning

confidence: 99%