Buckley Connor L, Lloyd Keegan B, Kumar Mohan G N, Blauer Jacob M
Department of Horticulture, Washington State University, Pullman, WA 99164-6414, USA.
Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602-1030, USA.
Plants (Basel). 2025 Jun 14;14(12):1830. doi: 10.3390/plants14121830.
The effects of wound healing on crop stand and productivity were examined on the potato ( L.) cultivars Alturas (Alt), Russet Burbank (RB), and Clearwater Russet (CW). Tuber yields increased linearly with an advancing wound healing period irrespective of the cultivar (R = 0.91). In contrast to unhealed controls, RB and CW wound-healed for 8 days produced a 6% and 8% greater yield, respectively, while a shorter wound healing period of 2 days increased Alt yield by 7%. Increases in tuber yield, a consequence of enhanced specific tuber weight across wound healing periods, contributed towards increased relative crop value in Alt (13%), RB (22%), and CW (19%). In further lab evaluations, Alt exhibited increased desiccation resistance and was associated with an earlier induction (24 h post-wounding) of feruloyl transferase (FHT) compared to CW and RB. Since FHT facilitates suberin and wax development, delayed FHT induction likely promoted fresh-weight loss in CW and RB compared to Alt. Enzymatic evaluations to assess the production of reactive oxygen species to protect fresh-cut seed found that RB had the highest activities of superoxide dismutase and peroxidase. This study demonstrates the broad benefits of planting wound-healed seed while highlighting opportunities to improve best practices and genetic improvement for wound healing response.
研究了伤口愈合对马铃薯（L.）品种阿尔图拉（Alt）、褐皮伯班克（RB）和清水褐皮（CW）的植株成活率和生产力的影响。无论品种如何，块茎产量均随伤口愈合时间的延长呈线性增加（R = 0.91）。与未愈合的对照相比，伤口愈合8天的RB和CW产量分别提高了6%和8%，而较短的2天伤口愈合期使Alt产量提高了7%。块茎产量的增加是整个伤口愈合期特定块茎重量增加的结果，这使得Alt（13%）、RB（22%）和CW（19%）的相对作物价值有所提高。在进一步的实验室评估中，与CW和RB相比，Alt表现出更强的抗干燥能力，并且与创伤后24小时更早诱导的阿魏酸转移酶（FHT）有关。由于FHT促进木栓质和蜡质的形成，与Alt相比，FHT诱导延迟可能导致CW和RB的鲜重损失。评估用于保护鲜切种薯的活性氧产生的酶学实验发现，RB的超氧化物歧化酶和过氧化物酶活性最高。本研究证明了种植伤口愈合种薯的广泛益处，同时突出了改进伤口愈合反应的最佳实践和遗传改良的机会。
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