萘乙酸和1-甲基环丙烯在防止L.品种采前落果中的作用

The Role of Naphthaleneacetic Acid and 1-Methylcyclopropene in Preventing Preharvest Berry Dropping in L.

作者信息

Carlomagno Antonio, Bonghi Claudio, Montanaro Giuseppe, Ferrandino Alessandra, Rasori Angela, Nuzzo Vitale, Novello Vittorino

机构信息

Department of Agricultural, Forest, Food, and Environmental Sciences, Università degli Studi della Basilicata, 85100 Potenza, Italy.

Department of Agronomy, Food, Natural Resources, Animals and Environment, Università degli Studi di Padova, 35020 Legnaro, Italy.

出版信息

Plants (Basel). 2025 Jan 19;14(2):280. doi: 10.3390/plants14020280.

DOI:10.3390/plants14020280

PMID:39861632

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11768357/

Abstract

Fruit dropping represents a concern in many fruit species, including L. This research investigated the role of two plant growth regulators (PGRs), naphthaleneacetic acid (NAA) and 1-methylcyclopropene (1-MCP), in mitigating preharvest berry dropping (PHBD) through affecting ethylene (ET) and auxin (AUX) metabolism and interactions, key hormones involved in abscission. The experiment was carried out on cv. Dolcetto, with PGR treatments applied at 43, 53, and 90 days after anthesis (DAA) for NAA and at 56 DAA for 1-MCP. Berry dropping incidence, yield parameters, and transcript levels of genes related to ET and AUX pathways were analyzed, including , , , , , and . Both NAA and 1-MCP significantly reduced PHBD, with NAA achieving a 92% reduction and 1-MCP an 82% reduction compared to control vines. Transcript analysis revealed differential gene expression patterns, indicating that NAA affects the ET biosynthesis pathway, while 1-MCP interferes with ET receptor signaling. The results suggest that both PGRs effectively reduced berry dropping, providing a basis for integrated crop management strategies to mitigate PHBD in grapevine cultivars susceptible to this physiological disorder.

摘要

落果是包括[具体物种名称未给出，用L代替]在内的许多水果品种所面临的一个问题。本研究调查了两种植物生长调节剂（PGR），即萘乙酸（NAA）和1-甲基环丙烯（1-MCP），通过影响乙烯（ET）和生长素（AUX）代谢及相互作用（脱落过程中涉及的关键激素）来减轻采前浆果落果（PHBD）的作用。该实验以多赛托品种进行，NAA在开花后天数（DAA）43、53和90天进行处理，1-MCP在DAA 56天进行处理。分析了浆果落果发生率、产量参数以及与ET和AUX途径相关基因的转录水平，包括[基因名称未给出，用多个逗号代替]。与对照葡萄树相比，NAA和1-MCP均显著降低了PHBD，NAA降低了92%，1-MCP降低了82%。转录分析揭示了不同的基因表达模式，表明NAA影响ET生物合成途径，而1-MCP干扰ET受体信号传导。结果表明，两种PGR均有效降低了浆果落果，为综合作物管理策略减轻易感这种生理紊乱的葡萄品种的PHBD提供了依据。