Role of Soil Amendment with Micronutrients in Suppression of Certain Soilborne Plant Fungal Diseases: A Review

The Soil Nutrient Environment Determines the Strategy by Which Bacillus velezensis HN03 Suppresses Fusarium wilt in Banana Plants

“…In our study, a positive correlation was found between the contents of Zn, Mn, Mg, and P in banana and the suppression of wilt disease severity, which is consistent with the results of Hassan and Abo-Elyousr (2013) and Siddiqui et al (2015) . Some nutrient elements in banana and its associated soil can reduce the severity of plant disease by increasing disease tolerance and resistance against plant pathogens ( Dordas, 2008 ; Siddiqui et al, 2015 ).…”

“…In our study, a positive correlation was found between the contents of Zn, Mn, Mg, and P in banana and the suppression of wilt disease severity, which is consistent with the results of Hassan and Abo-Elyousr (2013) and Siddiqui et al (2015). Some nutrient elements in banana and its associated soil can reduce the severity of plant disease by increasing disease tolerance and resistance against plant pathogens (Dordas, 2008;Siddiqui et al, 2015). Mn, which was significantly higher in the treatments with HN03 than in their controls, can be a highly effective micronutrient in inducing plant resistance against diseases by affecting cell wall composition, lignin biosynthesis, phenol biosynthesis, photosynthesis, and several other functions (Hassan and Abo-Elyousr, 2013).…”

“…Additionally, the contents of TK or AN increased significantly when HN03 was combined with wormcast or cow dung compost, respectively. By contrast, the contents of TN and OM, which are negatively correlated with DI and promote the uptake of Mn and Zn by higher plants ( Siddiqui et al, 2015 ), were higher in the treatments of “S + F + B + CD” and “S + F + CD” than in the other treatments, and were highest in “S + F + B + CD.” Notably, the contents of OM and TN in treatment “S + F + B + CD” were even higher than in both the unplanted soil treated with cow dung compost (S + CD) 0 and the compost control (S + F + CD). These results indicated that HN03 could decompose some substances, such as microbial or plant residue, and thereby increase the nutrient content in the soil.…”

“…Unique distributions of bacteria and fungi were observed in diseased and disease-free soil samples from banana fields ( Zhou et al, 2019 ). The importance of microorganisms in soil nutrient cycling and their role in plant nutrition is well established ( Kucey et al, 1989 ), and some nutrients are reported to be related to plant disease defense ( Siddiqui et al, 2015 ). If BCA can mediate the nutrient profile to defend against banana Fusarium wilt in different environments, then different nutrients would be found to accumulate in the soil and plants.…”

Magnesium may be a key nutrient mechanism related to Fusarium wilt resistance: a new banana cultivar (Zhongjiao No. 9)

“…Nonetheless, uninformed fertilization may not meet the nutrient demands of banana plants that are necessary for growth and can easily cause pollution. Additionally, previous studies have demonstrated that some nutrient elements in banana plants and their associated soils can reduce the severity of plant diseases by increasing disease tolerance and resistance against plant pathogens ( Dordas, 2008 ; Siddiqui et al, 2015 ; Wu et al, 2020 ). Other studies have demonstrated that the manipulation of soil nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), manganese (Mn), and zinc (Zn) levels may reduce the incidence of Fusarium disease by direct toxic effects or by affecting the cell wall composition, lignin biosynthesis, phenol biosynthesis, photosynthesis, and several other functions ( Yergeau et al, 2006 ; Dordas, 2008 ; Hassan & Abo-Elyousr, 2013 ; Wu et al, 2020 ).…”