Morphological and molecular identification of microalgal isolates and its effect on yield and agronomic characteristics of rice 9Oryza sativa L.)
Date
2019
Authors
Lilian Joy S. Lascano
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Algal species are one of the very diverse organisms which cover a very large taxon. Some eukaryotic while some are prokaryotic. Aside from their diversity, they have been studied for their potentials in various fields including medicine, industry and agriculture. In this study, algal isolates from freshwater areas in Minalungao and Pantabangan, Nueva Ecija were identified and tested for rice improvement with regards to height and yield using NSIC Rc 222 rice variety. Identity of isolates labeled as MIN1, MIN2 and PAN are Desertella yichangensis, Chlorellales sp., and Coccomyxa sp. respectively. With few literatures available regarding D. yichangensis maximum likelihood tree suggest a close relationship between D. yichangensis and Coccomyxa sp. based on a fragment on their DNA sequences obtained using rbcL primer. Three isolates has no major effect on rice regarding on all parameters used including height and yield. Response of rice is primarily due to various microalgal species that interacted with each other in addition to other factors including temperature, sunlight, water, air and humidity.