gram-variable


Also found in: Medical.

gram-variable

[′gram ¦ver·ē·ə·bəl]
(microbiology)
Pertaining to staining inconsistently with Gram's stain.
References in periodicals archive ?
Gram staining of an intra-articular aspirate obtained that day from the affected knee showed Gram-variable cocci.
15) The Nugent score is calculated by assessing for the presence of large gram-positive rods (Lactobacillus morphotypes; decrease in Lactobacillus scored as 0 to 4), small gram-variable rods (G.
It consists of facultatively anaerobic, oxidase- and catalase-negative, nonsporing, nonencapsulated, nonmotile, pleomorphic, Gram-variable rods (1).
Gram stain from the blood culture showed Gram-variable mixed with Gram-negative rods (later on identified as Aggregatibacter actinomycetemcomitans).
A Changes in vaginal flora, such as a decreasing normal presence of lactobacilli (large gram-positive rods) and an increased presence of other bacteria, particularly Gardnerella vaginalis (gram-negative to gram-variable pleomorphic rods), is associated with bacterial vaginosis (BV), the most common cause of vaginitis in women of reproductive age.
The Gram-negative or Gram-variable short rods, transparent colonies, [beta]-hemolytic on human blood agar, catalase-negative, Glucose, Prolin, ONPG positive, were presumptively identified as G.
In this system, large Gram-positive rods (Lactobacillus morphotypes), small Gram-negative to gram-variable rods (Gardneralla vaginalis and Bacteroides morphotypes) and curved Gram-negative rods (Mobiluncus species) are quantitated and a summation score is obtained.
The culture grew a Gram-variable bacillus, identified at a reference laboratory as Tsukamurella spp, and a yeast, Trichosporon spp.
We studied the inhibitory effects of these plants against 15 other bacteria; six Gram-negative, six Gram-positive, and three Gram-variable bacteria (Table 3).
and small curved gram-variable rods (Mobiluncus spp.
By the second hospital day, both admission blood cultures were growing Gram-variable bacilli that produced pink-pigmented colonies on blood agar.
The aerobic blood culture bottle of the first sample obtained from the recipient and aerobic cultures of the third erythrocyte unit enabled isolation of the same gram-variable coccobacilli after incubation for 48 hours (Figure).