The application of 28-homocatasterone brassinosteroid reduces blossom end rot in ‘BRS Montese’ tomatoes

Q4 Veterinary

Revista de Ciencias Agroveterinarias Pub Date : 2022-12-12 DOI:10.5965/223811712142022428

P. S. Gularte, A. Zanardi, Tiago Miqueloto, O. Z. Zanardi, C. A. Steffens, C. Amarante

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引用次数: 0

Abstract

We assessed the effect of 28-homocatasterone on xylem functionality and its relationship with blossom end rot (BER) occurrence and the quality of 'BRS Montese' tomatoes. Tomato plants were cultivated in a protected environment, with a semi-hydroponic system. During full flowering, open flowers were selected, marked, and pollinated. After two days, the flowers received the application of 28-homocatasterone at a concentration of 10-6 M or deionized water (control). Treatments were reapplied weekly up to 24 days after the first application (DAFA). At 24 DAFA, fruits were harvested and evaluated for fresh mass, texture (skin rupture and pulp penetration forces), skin color, xylem functionality, membrane permeability, apoplastic calcium concentration, and BER incidence. The application of 28-homocatasterone at 10-6 M did not increase the fresh mass nor change the fruits' texture attributes. However, 28-homocatasterone increased or kept xylem functionality, which was assicated with increased apoplastic calcium concentration and reduced BER occurrence in 'BRS Montese' tomatoes. Thus, the application of 10-6 M catasterone could be an alternative for BER control in tomatoes.

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施用28-同卡他酮油菜素内酯可减少BRS蒙特番茄的花端腐病

研究了28-同ocatasterone对‘BRS Montese’番茄木质部功能的影响及其与花端腐病(BER)发生和品质的关系。番茄种植在保护环境中，采用半水培系统。在完全开花期间，选择开放的花朵，标记并授粉。两天后，花被施用浓度为10-6 M的28-异灾酮或去离子水(对照)。在第一次应用(DAFA)后的24天内，每周再次应用处理。在24大法时，收获果实并评估其新鲜质量、质地(果皮破裂和果肉穿透力)、果皮颜色、木质部功能、膜通透性、外壁钙浓度和BER发生率。在10-6 M施用28-同卡司酮，没有增加果实的鲜质量，也没有改变果实的质地属性。然而，28-同ocatasterone增加或保持了‘BRS Montese’番茄的木质部功能，这与增加外胞钙浓度和减少BER发生有关。因此，施用10-6 M的巨灾酮可作为番茄BER防治的备选方案。

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来源期刊

Revista de Ciencias Agroveterinarias Veterinary-Veterinary (all)

CiteScore

0.50

自引率

0.00%

发文量

审稿时长

53 weeks

期刊介绍： Revista de Ciências Agroveterinárias (Journal of Agroveterinary Sciences) (ISSN 2238-1171) focus on publishing original and unpublished tecnical-scientific works regarding on researches in Agrarian and Veterinary Sciences and related areas. The objective of this journal is to publish double-blind peer reviewed research articles, research notes, and review articles contributing significantly for scientific knowledge diffusion and socialization, being made available to libraries of education and research institutions performing scientific activities on plants, animals, and related organisms.