Biofumigation using a wild Brassica oleracea accession with high glucosinolate content affects beneficial soil invertebrates

Abstract

Aims This study explores the biofumigation effects of glucosinolate (GSL) containing Brassica oleracea plant material on beneficial, non-target soil organisms, and aims to relate those effects to differences in GSL profiles.

Overexpression of the MYB29 transcription factor affects aliphatic glucosinolate synthesis in Brassica oleracea

“…Glucosinolates are also useful in agricultural applications. Glucosinolate profile and content have been assessed in the wild B. oleracea Winspit showing high levels of alkenyl-GSL, in the leaves which make it particularly interesting for biofumigation applications (Gols et al 2008; Zuluaga et al 2015). Our expression analysis contribute to a better understanding of the mechanism that regulates the biofumigation properties of Winspit, suggesting that several genes involved in the GSL pathway play a key role in the biofumigation potential of the wild genotype.…”

“…Winspit, a natural wild accession collected close to Winspit in the United Kingdom (Gols et al 2008), was provided by Rieta Gols (Wageningen University, the Netherlands) and had proved to contain high levels of GSLs compared to other wild and cultivated B . oleracea plants (Gols et al 2008; Harvey et al 2011; Zuluaga et al 2015). The purple sprouting broccoli cv.…”

“…Conversely, different types of ITCs, derived from aliphatic and aromatic GSLs, offer plant protection against several pathogens when used as a natural pesticide. For example, application of the aliphatic allyl ITC hydrolysis product of the 2-propenyl GSL (sinigrin) provides control of potato cyst nematodes (Pinto et al 1998; Aires et al 2009), soil-borne phytopathogenic fungi (Tiznado-Hernández and Troncoso-Rojas 2006), mealy cabbage aphid colonies (Newton et al 2009), and beneficial soil invertebrates (Zuluaga et al 2015). The natural toxic properties of ITCs make them useful as a more sustainable alternative to chemical fumigants in agricultural practices.…”

Sustainable Use of Bioactive Compounds from Solanum Tuberosum and Brassicaceae Wastes and by-Products for Crop Protection—A Review

“…In Table 2 , the experimental evidence mainly reported in the last 10 years of literature about the molecular system of Brassicaceae involving GHPs released by the GSL/myrosinase system, including a clearly or tentatively defined GSL concentration in experimental trials and the plant pathogens involved in the studies, is summarized. Table 2 [ 160 , 161 , 162 , 163 , 164 , 165 , 166 , 167 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 ] shows the growing and keen interest for biofumigation applications, particularly as regards plant protection against nematodes, fungi, pseudofungi, and some arthropoda. Nevertheless, soil organic matter addition through plant-based products should be carefully evaluated.…”

“…Again, in the near future, bio-product environmental impacts in terms of CO 2 sequestration or, more in general, their LCA (life-cycle assessment) should be considered. Besides the suitable C/N ratio, a Brassica -based formulated product could consistently reduce CO 2 emissions [ 25 ], while still being effective and less harmful to the soil food web functioning [ 120 , 162 ] and to the beneficial soil invertebrate [ 177 ], thus reducing agricultural environmental impact [ 156 ].…”