Impact of plant growth-promoting rhizobacteria on root colonization potential and life cycle ofRhizophagus irregularisfollowing co-entrapment into alginate beads

2016 ◽  
Vol 122 (2) ◽  
pp. 429-440 ◽  
Author(s):  
P. Loján ◽  
M. Demortier ◽  
S.L.S. Velivelli ◽  
S. Pfeiffer ◽  
J.P. Suárez ◽  
...  
Keyword(s):  
Life Cycle ◽  
Plant Growth ◽  
Root Colonization ◽  
Plant Growth Promoting Rhizobacteria ◽  
Alginate Beads ◽  
Plant Growth Promoting ◽  
Colonization Potential ◽  
Growth Promoting

scholarly journals The Interactions of Rhizodeposits with Plant Growth-Promoting Rhizobacteria in the Rhizosphere: A Review

Agriculture ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 142 ◽  
Author(s):  
Mohammad Hassan ◽  
John McInroy ◽  
Joseph Kloepper
Keyword(s):  
Plant Growth ◽  
Root Exudates ◽  
Root Colonization ◽  
Plant Growth Promoting Rhizobacteria ◽  
Border Cells ◽  
Physiological Processes ◽  
Plant Growth Promoting ◽  
Root Border Cells ◽  
Pathogenic Microbes ◽  
Growth Promoting

Rhizodeposits, root exudates, and root border cells are vital components of the rhizosphere that significantly affect root colonization capacity and multiplication of rhizosphere microbes, as well as secretion of organic bioactive compounds. The rhizosphere is an ecological niche, in which beneficial bacteria compete with other microbiota for organic carbon compounds and interact with plants through root colonization activity to the soil. Some of these root-colonizing beneficial rhizobacteria also colonize endophytically and multiply inside plant roots. In the rhizosphere, these components contribute to complex physiological processes, including cell growth, cell differentiation, and suppression of plant pathogenic microbes. Understanding how rhizodeposits, root exudates, and root border cells interact in the rhizosphere in the presence of rhizobacterial populations is necessary to decipher their synergistic role for the improvement of plant health. This review highlights the diversity of plant growth-promoting rhizobacteria (PGPR) genera, their functions, and the interactions with rhizodeposits in the rhizosphere.

PENGARUH PLANT GROWTH PROMOTING RHIZOBACTERIA TERHADAP BIOLOGI DAN STATISTIK DEMOGRAFI Thrips parvispinus (THYSANOPTERA: THRIPIDAE) PADA CABAI

2014 ◽  
Vol 5 (2) ◽  
Author(s):  
Rudi Tomson Hutasoit
Keyword(s):  
Life Cycle ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Intrinsic Rate Of Increase ◽  
Adult Longevity ◽  
Reproduction Rate ◽  
Net Reproductive Rate ◽  
Rate Of Increase ◽  
Plant Growth Promoting ◽  
Growth Promoting

Plant Growth Promoting Rhizobacteria (PGPR) is a group of bacteria that have been used as a bio-fertilizer to promote the nutrient plants supply and strengthen against plant pests and diseases. The aim of this study is knowing PGPR effect on long bean toward biology and demographic statistic Thrips parvispinus. The study was conducted by observing the development of the Thrips parvispinusfrom eggs to adulton chili pepper leaves with PGPR application or non-PGPR (control). The collected data were used to obtain information about the biology of the pest such as the stadia of each instar, preoviposition period, life cycle, adult longevity and fecundity. The data were also used to construct life tables for demographic statistic analysis using of the Jackknife method. PGPR usage have impact on thebiology of T. parvispinus such aslife cycle, longevity and fecundity. Gross reproduction rate (GRR), net reproductive rate (Ro), and intrinsic rate of increase (r) T. parvispinus with PGPR aplications lower than controls. PGPR can inhibit a doubling time (DT) T. parvispinus becomes longer than controls. Keywords: demographic statistics, life cycle, T. parvispinus

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