Is Laccase Enzyme an Answer for Sustainable Thatch Management in Turfgrass Systems: A Review

Lignin, a major component of plant cell wall, acts as a protective matrix and limits microbial degradation of cellulose and hemi-celluloses which are readily degraded by microbes [1]. Heterogenous and complex structure of lignin macro-molecule which is due to random coupling of three monomers makes it resistant to microbial degradation and hence a rate limiting step in organic matter decomposition [2-5]. Formation of thatch layer in turfgrass systems is accelerated when organic matter accumulation rate exceeds its degradation rate. Excessive thatch layer accumulation leads to physical conditions in thatch which are detrimental to turfgrass [6]. Cultural management practices such as core aeration, vertical mowing, and grooming are destructive in nature and adversely impact turf quality.