☆ 4.7 Article

Comparative Transcriptome Analysis of Two Ascophyllum nodosum Extract Biostimulants: Same Seaweed but Different

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY (2016)

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期刊

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 64, 期 14, 页码 2980-2989

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.6b00621

关键词

biostimulant; seaweed extract; Ascophyllum nodosum extract; microarray; Arabidopsis thaliana

类别

Agriculture, Multidisciplinary Chemistry, Applied Food Science & Technology

资金

  1. Irish Research Council for Science Engineering and Technology (IRCSET) under the Enterprise Partnership Scheme
  2. Enterprise Ireland under the Innovation Partnership Programme
  3. Applied Research Centre Plus program
  4. Science Foundation Ireland (SFI) [08/IN.1/B1931, 13/IA/1820]
  5. Science Foundation Ireland (SFI) [13/IA/1820, 08/IN.1/B1931] Funding Source: Science Foundation Ireland (SFI)

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Biostimulants for crop management are gaining increased attention with continued demand for increased crop yields. Seaweed extracts represent one category of biostimulant, with Ascophyllum nodosum extracts (ANE) widely used for yield and quality enhancement. This study investigated how the composition of two ANE biostimulants (ANE A and ANE B) affects plant mRNA transcriptomes, using the model plant Arabidopsis thaliana. Using Affymetrix Athl microarrays, significant heterogeneity was detected between the ANE biostimulants in terms of their impacts on the mRNA transcriptome of A. thaliana plants, which accumulated significantly more biomass than untreated controls. Genes dysregulated by the ANE biostimulants are associated with a wide array of predicted biological processes, molecular functions, and subcellular distributions. ANE A dysregulated 4.47% of the transcriptome, whereas ANE B dysregulated 0.87%. The compositions of both ANEs were significantly different, with a 4-fold difference in polyphenol levels, the largest observed. The standardization of the composition of ANE biostimulants represents a challenge for providing consistent effects on plant gene expression and biostimulation.

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