The phrase "absence of pathogen" is correct and usable in written English.
It can be used in contexts related to health, microbiology, or disease prevention to indicate that a particular pathogen is not present.
Example: "The test results confirmed the absence of pathogen in the water sample, ensuring it is safe for consumption."
Alternatives: "lack of pathogen" or "nonexistence of pathogen".
The spl28 mutants displayed a necrotic lesion phenotype spontaneously in the absence of pathogen attack.
Because the negative result of the microbiological test cannot warrant the absence of pathogen, broad-spectrum antibiotics were empirically delivered.
These mutants are referred to as lesion mimic mutants (lmms) because they spontaneously induce cell death and exhibit HR-like lesions in the absence of pathogen attack (Moeder and Yoshioka 2008).
These mutants develop spontaneous lesions that resemble disease symptoms in the absence of pathogen attack, some of which have been shown to be involved in programmed cell death, leading to enhanced disease resistance to multiple pathogens.
Lesion mimic mutants (lmms), displaying HR-like lesions in the absence of pathogen attacks, have been identified from maize (Johal et al. 1995), Arabidopsis Dietrichh et al. 1994), barley (Wolter et al. 1993), and rice (Takahashi et al. 1999).
"McDade's general point that the immune system is dysregulated in the absence of pathogen exposure early in life is extremely important and seems to have downstream consequences on many seemingly unrelated diseases," says biological anthropologist Michael Gurven of the University of California, Santa Barbara.
However, inflammation can occur in the absence of pathogens, contributing to tissue damage and leading to disease.
Transgenic tobacco expressing harpinpss at a high level exhibited neither phenotypic change nor accumulation of pathogenesis-related (PR) proteins in the absence of pathogens.
It would be interesting to dissect the reasons of no detection in southern Taiwan, including the presence or absence of pathogens, pathogen survival ability in high temperature, alternative hosts and environmental factors for disease development.
Interestingly, TLRs can trigger inflammation and tissue remodeling also in the absence of pathogens or PAMPs [9].
To identify regulators of hypersensitive cell death, investigators have isolated a number of lesion mimic mutants that exhibit spontaneous cell death in the absence of pathogens [6].
