Ipomoea batatas

Lim, T. K.

doi:10.1007/978-94-017-7276-1_5

Cited by 5 publications

(5 citation statements)

References 375 publications

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“…Purple-fleshed sweet potato (PFSP) ( Ipomoea batatas (L.) Lam . ) is a type of sweet potato, which has purple skin and flesh color of the storage roots due to the large accumulation of anthocyanin pigments 1 . It is a root crop widely grown in some Asian and African countries (i.e.…”

Section: Introductionmentioning

confidence: 99%

RNA-sequencing analysis revealed genes associated drought stress responses of different durations in hexaploid sweet potato

Arisha

Ahmad

Tang

et al. 2020

Sci Rep

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Purple-fleshed sweet potato (PFSP) is an important food crop, as it is a rich source of nutrients and anthocyanin pigments. Drought has become a major threat to sustainable sweetpotato production, resulting in huge yield losses. Therefore, the present study was conducted to identify drought stressresponsive genes using next-generation (NGS) and third-generation sequencing (TGS) techniques. Five cDNA libraries were constructed from seedling leaf segments treated with a 30% solution of polyethylene glycol (PEG-6000) for 0, 1, 6, 12, and 48 h for second-generation sequencing. Leaf samples taken from upper third of sweet potato seedlings after 1, 6, 12, and 48 h of drought stress were used for the construction of cDNA libraries for third-generation sequencing; however, leaf samples from untreated plants were collected as controls. A total of 184,259,679 clean reads were obtained using second and third-generation sequencing and then assembled into 17,508 unigenes with an average length of 1,783 base pairs. Out of 17,508 unigenes, 642 (3.6%) unigenes failed to hit any homologs in any databases, which might be considered novel genes. A total of 2, 920, 1578, and 2,418 up-regulated unigenes and 3,834, 2,131, and 3,337 down-regulated unigenes from 1 h, 6 h, 12 h, and 48 h library were identified, respectively in drought stress versus control. In addition, after 6, 12, and 48 h of drought stress, 540 up-regulated unigenes, 486 down-regulated unigenes and 414 significantly differentially expressed unigenes were detected. It was found that several gene families including Basic Helix-loop-helix (bHLH), basic leucine zipper (bZIP), Cystein2/Histidine2 (C2H2), C3H, Ethylene-responsive transcription factor (ERF), Homo domain-leucine zipper (HD-ZIP), MYB, NAC (NAM, ATAF1/2, and CUC2), Thiol specific antioxidant and WRKY showed responses to drought stress. In total, 17,472 simple sequence repeats and 510,617 single nucleotide polymorphisms were identified based on transcriptome sequencing of the PFSP. About 96.55% of the obtained sequences are not available online in sweet potato genomics resources. Therefore, it will enrich annotated sweet potato gene sequences and enhance understanding of the mechanisms of drought tolerance through genetic manipulation. Moreover, it represents a sequence resource for genetic and genomic studies of sweet potato. Purple-fleshed sweet potato (PFSP) (Ipomoea batatas (L.) Lam.) is a type of sweet potato, which has purple skin and flesh color of the storage roots due to the large accumulation of anthocyanin pigments 1. It is a root crop widely grown in some Asian and African countries (i.e. China, India, and Kenya). Sweet potato is regarded as the seventh most important food crop. It is among the crops which generate large amounts of food per unit area per unit time 2. Furthermore, it is considered to be a cheap source of energy, carbohydrates, vitamin, potassium, iron, fiber, and protein 3 .

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Section: Introductionmentioning

confidence: 99%

RNA-sequencing analysis revealed genes associated drought stress responses of different durations in hexaploid sweet potato

Arisha

Ahmad

Tang

et al. 2020

Sci Rep

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“…Polyphenols represent an important group of secondary plant metabolites playing various roles in plants ( Manach et al, 2004). The presence and content of polyphenols generally depend on genetics (Siracusa et al, 2014).…”

Section: Total Polyphenol Contentmentioning

confidence: 99%

“…Nowadays, the cultivation of sweet potatoes is spread worldwide thanks to great adaptability to different climatic conditions. It is tolerant to relatively low temperatures in higher altitudes, but it is very sensitive to freezing temperatures (Lim, 2016). Edible roots of sweet potato are the main reason for its cultivation.…”

Section: Introductionmentioning

confidence: 99%

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Total Polyphenols and Antioxidant Activity in Sweet Potatoes (Ipomoea Batatas L.) After Heat Treatment

Franková

Šnirc²,

Jančo³

et al. 2022

J microb biotech food sci

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Sweet potatoes are reported to be a good source of bioactive compounds. The aim of this study was to evaluate the impact of different heat treatment methods (microwaving, steaming, and baking) and variety on the total polyphenol content and antioxidant activity of three sweet potato varieties – Beauregard (orange-fleshed), O’Henry (white-fleshed), and 414-purple (purple-fleshed). All investigated parameters were determined spectrophotometrically. The total polyphenol content was in the range of 0.53 (O’Henry) – 5.60 mg GAE.g-1 DW (414-purple) for raw flesh and 1.68 (O’Henry) – 7.03 mg GAE.g-1 DW (414-purple) for raw peel of sweet potatoes. Heat treatments caused an increase of total polyphenol content in sweet potatoes (0.98 (steamed O’Henry) – 28.04 mg GAE.g-1 DW (baked 414-purple)). In terms of antioxidant activity, the steamed samples of variety 414-purple showed the highest values of DPPH radical scavenging activity (4.51 µmol TE.g-1 DW) and Ferric reducing antioxidant power assay (19.57 µmol TE.g-1 DW) compared to the other treatment methods. Spearman´s test showed a strong positive relationship between both used methods for evaluation of antioxidant activity. All studied processing methods positively affected the total polyphenol content and antioxidant activity in sweet potatoes.

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“…Sweet potato is an easy-to-grow vegetable, which is well adapted to climatic conditions and relatively tolerant to dry periods, cultivated mainly by family farmers. The plant has several uses for all of its parts: the roots, for human consumption; and the leaves and stems, as animal feed (Massaroto, 2008;Motsa et al, 2015;Lim, 2016).…”

Section: Introductionmentioning

confidence: 99%

Energy and budget balances for sweet potato-based ethanol production

Silva

Gonçalves

Maluf

et al. 2019

Pesq. agropec. bras.

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How to cite SILVA, L.F.L. e; GOnçALVES, W.M.; MALUF, W.R.; RESEnDE, L.V.; LASMAR, A.; CARVALHO, R. de C.; LICURSI, V.; MOREttO, P. Energy and budget balances for sweet potato-based ethanol production.Abstract -The objective of this work was to assess the viability of sweet potato (Ipomoea batatas) for ethanol production, as well as to estimate the energy and budget balances for the crop. Data from the agricultural and industrial production phases were evaluated. Those from the agricultural phase were estimated from a field experiment and used for comparison of sweet potato genotypes. Those from the industrial phase were estimated based on the literature on the fossil fuel energy and electricity consumed in the ethanol production process. With average yields of 35 Mg ha -1 roots and 12 Mg ha -1 dry stems, the output/input ratios were 6.64 and 1.93 for the energy and budget balances, respectively. For yields of 50 and 80 Mg ha -1 roots (17 and 27 Mg ha -1 dry stems, respectively), the indexes for energy balance were 7.16 and 7.68, respectively, and those for energy budget were 2.76 and 4.42. The obtained results confirm the great aptitude of the sweet potato crop for biofuel production.

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Ipomoea batatas

Cited by 5 publications

References 375 publications

RNA-sequencing analysis revealed genes associated drought stress responses of different durations in hexaploid sweet potato

RNA-sequencing analysis revealed genes associated drought stress responses of different durations in hexaploid sweet potato

Total Polyphenols and Antioxidant Activity in Sweet Potatoes (Ipomoea Batatas L.) After Heat Treatment

Energy and budget balances for sweet potato-based ethanol production

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