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Antibacterial effects of selected weed extract against bacterial soft rot in dragon fruit / Gizene T. Tuala.

By:

Tuala, Gizene T [author]

Contributor(s):

[adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : Cavite State University- Main Campus, 2018.Description: xiv , 44 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

632.5 T19 2018

Online resources:

View Abstract

Production credits:

College of Agriculture, Food, Environment and Natural Resources (CAFENR), Department of Crop Science

Abstract: TUALA, GIZENE T. Antibacterial Effects of Selected Weed Extract Against Bacterial Soft Rot in Dragon Fruit. Undergraduate Thesis, Bachelor of Science in Agriculture (Major in Crop Science). Cavite State University, Indang, Cavite. June 2018. Adviser: Dr. Adelaida E. Sangalang. Antibacterial effects of 10 weed extracts, namely: gale-o-wind (Phyllantus amarus), devil weed (Chromolaena odorata), wild sage (Lantana camara), nutsedge (Cyperus rotundus), asthma plant (Euphorbia hirta), wild ampalaya (Momordica chuchinensis), wild betel (Piper sarmentosum), purslane (Portulaca oleracea), spiny pigweed (Amaranthus spinosus) and sensitive plant (Mimosa pudica) were evaluated. The weed extracts were tested in vitro against Enterobacter cloacae, the cause of bacterial soft rot in dragon fruit using inhibition zone technique. The most effective extract in terms of inhibitory property was assayed in vivo. Streptomycin and distilled water served as controls. Results showed that all the selected weed extracts contained inhibitory properties against the growth of Enterobacter cloacae. Wild betel caused the highest inhibition zone in vitro and based on the Clinical & Laboratory Standards Institute (CLSI), E. cloacae was considered intermediately resistant to the extract. `Pure extract of wild betel was used to test its effectiveness in vivo. Results showed that wild betel suppressed the symptom expression of plants. However, it was considered ineffective in terms of suppressing disease severity as its result was statistically similar to distilled. Although the weed extracts showed inhibitory effects against bacterial soft rot, no weed extract was comparable to commercial bactericide. Therefore, it could not be utilized as a substitute to the commercial bactericide used in the study.

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Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	632.5 T19 2018 (Browse shelf(Opens below))		Link to resource	Room use only	T-7668		00077051

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Thesis (Bachelor of Science in Agriculture Major in Crop Science) Cavite State University.

Includes bibliographical references.

College of Agriculture, Food, Environment and Natural Resources (CAFENR), Department of Crop Science

TUALA, GIZENE T. Antibacterial Effects of Selected Weed Extract Against Bacterial Soft Rot in Dragon Fruit. Undergraduate Thesis, Bachelor of Science in Agriculture (Major in Crop Science). Cavite State University, Indang, Cavite. June 2018. Adviser: Dr. Adelaida E. Sangalang.
Antibacterial effects of 10 weed extracts, namely: gale-o-wind (Phyllantus amarus), devil weed (Chromolaena odorata), wild sage (Lantana camara), nutsedge (Cyperus rotundus), asthma plant (Euphorbia hirta), wild ampalaya (Momordica chuchinensis), wild betel (Piper sarmentosum), purslane (Portulaca oleracea), spiny pigweed (Amaranthus spinosus) and sensitive plant (Mimosa pudica) were evaluated. The weed extracts were tested in vitro against Enterobacter cloacae, the cause of bacterial soft rot in dragon fruit using inhibition zone technique. The most effective extract in terms of inhibitory property was assayed in vivo. Streptomycin and distilled water served as controls. Results showed that all the selected weed extracts contained inhibitory properties against the growth of Enterobacter cloacae. Wild betel caused the highest inhibition zone in vitro and based on the Clinical & Laboratory Standards Institute (CLSI), E. cloacae was considered intermediately resistant to the extract. `Pure extract of wild betel was used to test its effectiveness in vivo. Results showed that wild betel suppressed the symptom expression of plants. However, it was considered ineffective in terms of suppressing disease severity as its result was statistically similar to distilled. Although the weed extracts showed inhibitory effects against bacterial soft rot, no weed extract was comparable to commercial bactericide. Therefore, it could not be utilized as a substitute to the commercial bactericide used in the study.

Submitted to the University Library September 20, 2018 T-7668