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Systemic Uptake of Fluorescent Tracers by Soybean ( Glycine max (L.) Merr.) Seed and Seedlings

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  • Zhen Wang

    (Horticulture Section, School of Integrative plant Science, Cornell AgriTech, Cornell University, Geneva, New York, NY 14456, USA
    Inner Mongolia Agricultural University, College of Horticulture and Plant Protection, Hohhot 010018, China
    These authors contributed equally to this work.)

  • Masoume Amirkhani

    (Horticulture Section, School of Integrative plant Science, Cornell AgriTech, Cornell University, Geneva, New York, NY 14456, USA
    These authors contributed equally to this work.)

  • Suemar A.G. Avelar

    (Seed Analysis Laboratory of APROSMAT–Mato Grosso Seed Grower Association–APROSMAT Rua dos Andradas, Rua dos Andradas, Rondonópolis 688, Brazil)

  • Daibin Yang

    (Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China)

  • Alan G. Taylor

    (Horticulture Section, School of Integrative plant Science, Cornell AgriTech, Cornell University, Geneva, New York, NY 14456, USA)

Abstract

Systemic seed treatment uptake was investigated in seeds and seedlings using fluorescent tracers to mimic systemic agrochemicals. Soybean was used as the model as soybean has the permeable seed coat characteristic to both charged and noncharged molecules. The purpose of the paper is to (1) screen 32 fluorescent tracers and then use optimal tracers for seed and seedling uptake, (2) investigate varietal differences in seed uptake, (3) examine the distribution of tracer uptake into 14-day-old seedlings, and (4) study the relationship between seed treatment lipophilicity, measured as log P on seed and root uptake. The major chemical families that displayed both seed and seedling uptake were coumarins and xanthenes. Seed uptake of coumarin 120 ranged from 1.1% to 4.8% of the applied seed treatment tracer from 15 yellow-seeded varieties. Rhodamine B, a xanthene compound uptake in seedlings, showed translocation from the applied seed treatment to all seedling tissues. Most of the tracer was measured in the hypocotyl and root, with lesser amounts in the epicotyl and true leaves. Log P is well documented in the literature to model systemic uptake by roots, but log P of the tracers were not related to seed uptake.

Suggested Citation

  • Zhen Wang & Masoume Amirkhani & Suemar A.G. Avelar & Daibin Yang & Alan G. Taylor, 2020. "Systemic Uptake of Fluorescent Tracers by Soybean ( Glycine max (L.) Merr.) Seed and Seedlings," Agriculture, MDPI, vol. 10(6), pages 1-13, June.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:6:p:248-:d:376836
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    Citations

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    Cited by:

    1. Hilary Mayton & Masoume Amirkhani & Daibin Yang & Stephen Donovan & Alan G. Taylor, 2021. "Tomato Seed Coat Permeability: Optimal Seed Treatment Chemical Properties for Targeting the Embryo with Implications for Internal Seed-Borne Pathogen Control," Agriculture, MDPI, vol. 11(3), pages 1-11, February.
    2. Wen-Hao Su, 2020. "Systemic Crop Signaling for Automatic Recognition of Transplanted Lettuce and Tomato under Different Levels of Sunlight for Early Season Weed Control," Challenges, MDPI, vol. 11(2), pages 1-13, September.
    3. Alan G. Taylor & Masoume Amirkhani & Hank Hill, 2021. "Modern Seed Technology," Agriculture, MDPI, vol. 11(7), pages 1-6, July.

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