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Effect of PBAT Biodegradable Mulch Film Extract on Seed Germination and Seedlings Metabolism of Tobacco

Author

Listed:
  • Weichang Gao

    (Guizhou Academy of Tobacco Science, Upland Flue-Cured Tobacco Quality & Ecology Key Laboratory of China Tobacco, Guiyang 550081, China
    These authors contributed equally to this work.)

  • Zhenyan Lin

    (College of Biology and Environmental Science, Jishou University, Jishou 416000, China
    These authors contributed equally to this work.)

  • Kai Cai

    (Guizhou Academy of Tobacco Science, Upland Flue-Cured Tobacco Quality & Ecology Key Laboratory of China Tobacco, Guiyang 550081, China)

  • Wenjie Pan

    (Guizhou Academy of Tobacco Science, Upland Flue-Cured Tobacco Quality & Ecology Key Laboratory of China Tobacco, Guiyang 550081, China)

  • Han Li

    (Guizhou Academy of Tobacco Science, Upland Flue-Cured Tobacco Quality & Ecology Key Laboratory of China Tobacco, Guiyang 550081, China)

  • Yanxia Liu

    (Guizhou Academy of Tobacco Science, Upland Flue-Cured Tobacco Quality & Ecology Key Laboratory of China Tobacco, Guiyang 550081, China)

  • Dai Peng

    (Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China)

  • Jiangchi Fei

    (College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China)

Abstract

Poly(butylene adipate-co-terephthalate) biodegradable mulch film (PBAT-BMF) is gradually applied in agricultural production, but its potential ecological risks have not been studied so far. In this paper, methyl tert-butyl ether (MTBE) was used to extract organic compounds from PBAT-BMF to evaluate its effects on tobacco seed germination and seedling metabolism. The results showed that six organic compounds were found in the extract of PBAT-BMF, among which the content of diisopropylphenyl isocyanate was the highest at 557.27 μg g −1 . A germination test showed that the extract scan inhibited the germination of tobacco seeds. The germination time was 1 d later than the control(CK), and the germination percentage and germination energy were non-significantly decreased by 2.50% and 1.00%. In contrast, the extracts significantly affected the root length, and seedlings height ( p < 0.01), decreased by 0.24 cm and 0.28 cm, respectively. A metabolic analysis revealed that the extracts have a certain stress effect on tobacco seedlings and showed an up-regulating effect on soluble sugar, critical organic acid, biogenic amine, and down-regulating alkaloid, which indicated that the carbon and nitrogen metabolism pathway of the tricarboxylic acid cycle and alkaloid synthesis were disturbed. These results indicated that organic compounds extracted from PBAT-BMF had stress effects on germination and the growth of tobacco seeds, which significantly changed the metabolism pathway. This study can provide a theoretical basis for the development and application of PBAT-BMF.

Suggested Citation

  • Weichang Gao & Zhenyan Lin & Kai Cai & Wenjie Pan & Han Li & Yanxia Liu & Dai Peng & Jiangchi Fei, 2022. "Effect of PBAT Biodegradable Mulch Film Extract on Seed Germination and Seedlings Metabolism of Tobacco," Agriculture, MDPI, vol. 12(10), pages 1-12, September.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:10:p:1553-:d:925577
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    Cited by:

    1. Zijun Zhao & Wenqing He & Guangfeng Chen & Changrong Yan & Haihe Gao & Qin Liu, 2024. "Dry Direct-Seeded Rice Yield and Water Use Efficiency as Affected by Biodegradable Film Mulching in the Northeastern Region of China," Agriculture, MDPI, vol. 14(2), pages 1-19, January.

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