Potato Periderm is the First Layer of Defence against Biotic and Abiotic Stresses: a Review

Singh, Baljeet; Bhardwaj, Vinay; Kaur, Kuljot; Kukreja, Sarvjeet; Goutam, Umesh

doi:10.1007/s11540-020-09468-8

Cited by 18 publications

(17 citation statements)

References 96 publications

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“…The healing structure was mainly composed of suberin and lignin, of which suberin was divided into suberin polyaliphatic (SPA) and SPP [ 33 ]. SPP and lignin was mainly composed of phenolic compounds, while SPA was mainly composed of fatty acid derivatives [ 55 ]. ROS are indispensable for oxidative crosslinking of SPP and lignin, which is also important for the injury signal pathway [ 36 ].…”

Section: Discussionmentioning

confidence: 99%

Brassinosteroid Accelerates Wound Healing of Potato Tubers by Activation of Reactive Oxygen Metabolism and Phenylpropanoid Metabolism

Han

Yang

Zhang

et al. 2022

Foods

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Wound healing could effectively reduce the decay rate of potato tubers after harvest, but it took a long time to form typical and complete healing structures. Brassinosteroid (BR), as a sterol hormone, is important for enhancing plant resistance to abiotic and biotic stresses. However, it has not been reported that if BR affects wound healing of potato tubers. In the present study, we observed that BR played a positive role in the accumulation of lignin and suberin polyphenolic (SPP) at the wounds, and effectively reduced the weight loss and disease index of potato tubers (cv. Atlantic) during healing. At the end of healing, the weight loss and disease index of BR group was 30.8% and 23.1% lower than the control, respectively. Furthermore, BR activated the expression of StPAL, St4CL, StCAD genes and related enzyme activities in phenylpropanoid metabolism, and promoted the synthesis of lignin precursors and phenolic acids at the wound site, mainly by inducing the synthesis of caffeic acid, sinapic acid and cinnamyl alcohol. Meanwhile, the expression of StNOX was induced and the production of O2− and H2O2 was promoted, which mediated oxidative crosslinking of above phenolic acids and lignin precursors to form SPP and lignin. In addition, the expression level of StPOD was partially increased. In contrast, the inhibitor brassinazole inhibited phenylpropanoid metabolism and reactive oxygen metabolism, and demonstrated the function of BR hormone in healing in reverse. Taken together, the activation of reactive oxygen metabolism and phenylpropanoid metabolism by BR could accelerate the wound healing of potato tubers.

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Section: Discussionmentioning

confidence: 99%

Brassinosteroid Accelerates Wound Healing of Potato Tubers by Activation of Reactive Oxygen Metabolism and Phenylpropanoid Metabolism

Han

Yang

Zhang

et al. 2022

Foods

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“…The deposition of suberin in the tuber cell wall acts as a barrier for pathogen attack and water loss. Association mapping of this critical trait will help identify novel SNP markers to select genotypes with better cell wall reinforcement against excoriation, pathogen attack and dehydration (Lobato et al., 2018; Singh et al., 2020).…”

Section: Nutrition and Quality Characteristics Of Potatomentioning

confidence: 99%

Overview on domestication, breeding, genetic gain and improvement of tuber quality traits of potato using fast forwarding technique (GWAS): A review

et al. 2021

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Tuber quality is the subject of great interest among the processing industry and consumers worldwide. Being a polygenic trait, its enhancement requires a systematic understanding of their genetic complexity. Molecular genetics offered valuable solutions to the challenging endeavours of slow genetic gains in conventional potato breeding. With the advent of linkage maps, molecular markers and availability of next‐generation sequencing (NGS) platforms, the plant breeding programmes worldwide have achieved faster genetic gain due to marker‐assisted selection (MAS). Linkage mapping detects QTLs in biparental population; alternatively, genomic and phenotypic differences can be identified by extensive genotyping and phenotyping of a germplasm panel depicting natural biological diversity to reveal QTLs, in other words, marker‐trait associations. Due to advancements in the fields of genome sequencing and bioinformatics, researchers have preferred to use the genome‐wide association mapping (GWAS) method for detecting QTLs due to its higher resolution. In potato, GWAS identified causative allele(s)/loci and provides reliable platform for the development of diagnostic SNP markers by employing Infinium SolCAP SNP array. Later, KASP validation markers can be developed to be used as selection markers in order to bred improved cultivars. The current review focuses on recently used approaches for genetic analyses (linkage mapping or association mapping) regarding potato tuber quality traits, provides comprehensive knowledge about breeding, genetic gain, basic genetic and statistical GWAS concepts and subsequently highlights the genetic discoveries using GWAS and KASP markers.

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“…Furthermore, wounded tubers or cut seed tuber pieces with fully formed suberin layer are generally resilient against any environmental stresses and physical decay. Overall, tuber WH processes can be divided into two distinct phases, the immediate response is known as i) closing layer formation, which is followed by ii) wound periderm formation ( Lulai and Neubauer, 2014 ; Singh et al., 2021 ). Accumulation of suberin polyphenolics (SPP) and suberin polyaliphatics (SPA) is an intrinsic response of tuber tissues to wounding and are major steps of the two stage WH process ( Lulai et al., 2008 ; Lulai and Suttle, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

Natural elicitors enhanced suberin polyphenolic accumulation in wounded potato tuber tissues

Dogramaci,

Sarkar,

Finger

et al. 2024

Front. Plant Sci.

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IntroductionUnintended wounding or bruising during harvest or postharvest handling leads to significant tuber loss and imposes economic burden to potato industry. Therefore, finding effective strategies to mitigate wound-related tuber losses is very important from industry perspectives. Formation of protective barrier through accumulation of suberin polyphenolics (SPP) is a natural and initial response of potato tuber tissues to wounding.Materials and methodsIn this study, efficacy of two natural elicitors, such as chitosan oligosaccharide (COS 0.125 g L-1) and cranberry pomace residue (Nutri-Cran 0.125 g L-1) was investigated using a mechanically wounded tuber tissue model and by histological determination of SPP formation in five agronomically relevant and red-skin potato cultivars (Chieftain, Dakota Rose, Dakota Ruby, Red LaSoda, Red Norland). Furthermore, the potential role of stress protective metabolic regulation involving phenolic metabolites, proline, and antioxidant enzymes in tuber WH processes were also investigated during 0-9 days after wounding.Results and discussionExogenous treatments of both COS and Nutri-Cran resulted into enhanced SPP formation in wounded surface, but the impact was more rapid with Nutri-Cran treatment in select cultivars. Greater contents of total soluble phenolic, ferulic acid, chlorogenic acid, total antioxidant activity, and superoxide dismutase activity were also observed in elicitor treated tuber tissues at different time points after wounding. Nutri-Cran treatment also reduced the activity of succinate dehydrogenase in Red Norland and Dakota Ruby at 3 d, indicating a suppression in respiration rate. Collectively, these results suggest that Nutri-Cran can be potentially utilized as an effective WH treatment to potato tubers for minimizing wound-related losses.

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Potato Periderm is the First Layer of Defence against Biotic and Abiotic Stresses: a Review

Cited by 18 publications

References 96 publications

Brassinosteroid Accelerates Wound Healing of Potato Tubers by Activation of Reactive Oxygen Metabolism and Phenylpropanoid Metabolism

Brassinosteroid Accelerates Wound Healing of Potato Tubers by Activation of Reactive Oxygen Metabolism and Phenylpropanoid Metabolism

Overview on domestication, breeding, genetic gain and improvement of tuber quality traits of potato using fast forwarding technique (GWAS): A review

Natural elicitors enhanced suberin polyphenolic accumulation in wounded potato tuber tissues

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