scholarly journals Growth of Botryodiplodia theobromae an Incitant of Longitudinal Splitting of Bark and Wood Disease in Acidlime (Citrus aurantifolia Swingle) as Influenced by pH Levels, Temperature and Growth Media

Author(s):  
T. Gouri Sankar ◽  
V. Gopi ◽  
Y. Hema Bharathi ◽  
K. Gopal ◽  
L. Mukunda Lakshmi
2015 ◽  
Vol 5 (4) ◽  
pp. 143-150
Author(s):  
Bechelaghem Nadia ◽  
Djibaoui Rachid ◽  
Ettalhi Mehdi ◽  
Arabi Abed

  Long-term use of antibiotics, in the treatment of vaginal infection can lead to Candida overgrowth. The motive of the present study was real case of a woman with chronic vaginitis. During ten years, the patient was subjected to a treatment with antibiotics such as gentamycin and lincomycin. Following remarks of a gynecologist, the complicated infection showed like yeast vaginitis symptoms. Consequently we isolated the germ from a vaginal swab sample taken from the patient, and then it was identified phenotypically and belonged to Candida albicans. Our study was followed by examination of the effects of pH, temperature and growth media on the morphogenesis of the isolated C. albicans. The results showed that pH 7.4, temperature at 37 °C and glucose free medium were optimal conditions for filamentation. In order to study the antagonistic effect of vaginal lactobacilli against C. albicans, we used 23 Lactobacilli isolated from several healthy women. The results showed that all isolates had an inhibitory effect against C. albicans with a maximal zone of 25.67 ± 0.58 mm obtained by the isolate L17.


2009 ◽  
Vol 54 (2) ◽  
pp. 940-942 ◽  
Author(s):  
Melanie L. Langford ◽  
Sahar Hasim ◽  
Kenneth W. Nickerson ◽  
Audrey L. Atkin

ABSTRACT Farnesol interacts with Candida albicans as both a quorum-sensing molecule and toxic agent, but confusion abounds regarding which conditions promote these distinct responses. Farnesol sensitivity was measured when inoculum cell history and size, temperature, and growth media were altered. Parameters for farnesol tolerance/sensitivity were defined, validating previous studies and identifying new variables, such as energy availability. This study clearly defines what farnesol concentrations are lethal to C. albicans, based on environmental conditions.


2020 ◽  
Vol 31 ◽  
pp. 101294 ◽  
Author(s):  
Fariba Abbasi ◽  
Mohammad Reza Samaei ◽  
Zahra Manoochehri ◽  
Mahrokh Jalili ◽  
Ebrahim Yazdani

2019 ◽  
Vol 3 (2) ◽  
pp. 27
Author(s):  
Emma Savitri ◽  
Natalia Suseno ◽  
Tokok Adiarto

Many mass-transfer applications have used chitosan membrane in separation processes. This research applied crosslinked chitosan membrane to sterillize bacterial growth media. Chitosan membranes having 79 % DD were produced by casting and drying chitosan solution. The images of the membrane were characterized by SEM and other characterizations such as permeability, permselectivity and tensile strength were investigated. The flux increased with longer submersion period but the rejection decreased. Otherwise, the flux decreased and rejection increased in line with an increase in curing temperature. Tensile strength increased with the increase of submersion period and curing temperature. The optimum conditions of crosslinking process are 2 hours of submersion periods and curing temperature at 90 oC.  It gives flux 5.8930 L/jam.m2, rejection 97.47 % and tensile strength 49640 kN/m2


1986 ◽  
Vol 4 (1) ◽  
pp. 22-25 ◽  
Author(s):  
A.J. Laiche ◽  
V.E. Nash

Three woody landscape species, Rhododendron indica ‘President Clay’, Ligustrum sinense ‘variegata’, and Ilex crenata ‘compacta’, were grown in media prepared from fresh pine bark, pine bark with wood, and pine tree chips. Although media were variable in physical properties, all exhibited very high hydraulic conductivity and low water holding capacity. The capacity of these media materials to hold fertilizer elements was very low. Nitrogen, potassium, and phosphorus were rapidly removed by leaching while calciuum and magnesium were retained longer because of the low solubility of dolomitic limestone. Pine bark was the best growth media tested for all plant species. Pine bark with wood was less satisfactory than pine bark and growth was poorest in pine tree chips. More research is needed on the use of the organic amendments with greater amounts of wood before being widely used as organic components of growth media.


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