Chitooligosaccharide accelerated wound healing in potato tubers by promoting the deposition of suberin polyphenols and lignin at wounds

Xie, Pengdong; Yang, Yangyang; Oyom, William; Su, Tingting; Tang, Yingbo; Wang, Yi; Prusky, D.; Bi, Yang

doi:10.1016/j.plaphy.2023.107714

Cited by 13 publications

(6 citation statements)

References 42 publications

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“…Phenolic acids play an integral role in the make-up of SPP domain and matrix of the suberin layer in wounded surface of the potato tuber tissues ( Lulai and Neubauer, 2014 ). Wound-induced accumulation of phenolics in potato tuber tissues was widely reported by previous studies ( Reyes and Cisneros-Zevallos, 2003 ; Dastmalchi et al., 2014 ; Jiang et al., 2019 ; Xie et al., 2023 ). In this study, significant ( p ≤ 0.05) differences in TSP content among potato cultivars and cultivar × treatment interactions were observed at all sampling time points ( Table 1 , Figure 5 ).…”

Section: Resultssupporting

confidence: 61%

“…Russet Burbank and Russet Norkotah with COS elicitor treatment and after 4 d of wounding. Similarly, Xie et al. (2023) reported enhanced deposition of SPP and lignin in wounded tuber tissues with COS elicitor treatment.…”

Section: Resultsmentioning

confidence: 85%

“…Additionally, COS treatment increased TSP content in Red Norland tuber tissues at 9 d after wounding. Previously, enhanced phenolic content was observed with COS elicitor treatments in wounded potato tuber tissues ( Chintha et al., 2023 ; Xie et al., 2023 ). Xie et al.…”

Section: Resultsmentioning

confidence: 94%

“…Previously, enhanced phenolic content was observed with COS elicitor treatments in wounded potato tuber tissues ( Chintha et al., 2023 ; Xie et al., 2023 ). Xie et al. (2023) also observed stimulation in biosynthesis of cinnamic, caffeic, p -coumaric, and ferulic acids with COS elicitor treatment in potato tuber tissues.…”

Section: Resultsmentioning

confidence: 94%

“…Furthermore, we also measured the activities of select antioxidant enzymes (CAT, GPX, and SOD) to better understand the specific role of individual antioxidant enzyme in tuber WH responses. Previously, Xie et al. (2023) reported COS induced increase in total antioxidant activity, and activities of CAT, and peroxidase during WH of potato tubers.…”

Section: Resultsmentioning

confidence: 95%

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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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