deletions | additions       diff --git a/section_Introduction_Symbioses_between_soil__.tex b/section_Introduction_Symbioses_between_soil__.tex  index b84de3e..761fe92 100644  --- a/section_Introduction_Symbioses_between_soil__.tex  +++ b/section_Introduction_Symbioses_between_soil__.tex 
...
\section{Introduction}  Symbioses between soil bacteria and plants can result in neutral, beneficial, or detrimental effects on plant health. Species from the Gram-negative genus \textit{Stenotrophomonas} are important members of the rhizosphere community where they participate in biogeochemical nutrient  cycling and protection against stresses including drought and pathogenic microorganisms  \cite{23717321} (ref). [??While Stenotrophomonas (maltophilia??) \cite{Kobayashi_1995}\cite{10931911} \cite{12969277}\cite{Messiha_2007}\cite{21686169}(ref). While \texit{Stenotrophomonas}  isolates can be found associated with a wide variety of plant hosts \cite{2930173}, they are often the dominant bacterial  species (refs),...associate associated  with cruciferous vegitables (refs)]. (\textit{Brassicaceae} family) \cite{16232300} (add more refs).  play important role in nature, particularly in biogeochemical cycling, and in recent times, they have also been used in applied microbiology and biotechnology (Ikemoto et al., 1980). The biotechnological interest in S. maltophilia stems from their potential plant growth promoting properties, their use in biological control of plant fungal pathogens, their capability to degrade xenobiotic compounds and their potential to decontaminate the soil (Suckstorff and Berg 2003, Hayward et al. 2009).   Importance of distinguishing pathogenic from non-pathogenic species. species \cite{16232300}\cite{25873912}.  The ability of Stenotrophomonas isolates to control fungal infections in plants has been widely documented (Dunne et al., 1997, Suckstorff and Berg 2003, Hayward et al. 2009, Zhang and Yuen, 2000). For example, S. maltophilia strain W81, isolated from the rhizosphere of field-grown sugar beet, produced the extracellular enzymes chitinase and protease and inhibited the growth of the phytopathogenic fungus Pythium ultimum in vitro, resulting in reduction of damping-off of soil-grown sugar beet (Dunne et al., 1997). Zhang and Yuen (2000) also reported S. maltophilia isolate C3 to be a biological control agent, active in part through chitinase activity. This bacteria strain was effective in inhibiting germination of conidia of Bipolaris sorokiniana (Sacc.), a cereal pathogen. In the Nile Delta of Egypt, some strains of S. maltophilia (PD3532, PD3533, PD3534) have been demonstrated to have the potential to control brown rot of potato caused by the bacterium Ralstonia solanacearum (Messiha et al., 2007). Suckstorff and Berg (2003) found that three strains of S. maltophilia could enhance plant growth in in strawberry seedlings.  
...