Gibberellins and plant vegetative growth

Martı́nez, Consuelo; Espinosa‐Ruíz, Ana; Prat, Salomé

doi:10.1002/9781119210436.ch10

Cited by 31 publications

(17 citation statements)

References 185 publications

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“…Similarly, increased expression of Rht-D1b in the Rht-D1c mutant also further increased dwarfism without affecting dormancy ( Gooding et al , 2012 ). Although both elongation and dormancy are typical DELLA-regulated GA responses (reviewed by Graeber et al , 2012 ; Martínez et al , 2016 ), these findings suggest that the Green Revolution alleles affect elongation without affecting dormancy; in other words, Rht-B1b and Rht-D1b uncouple the elongation and dormancy responses.…”

Section: Discussionmentioning

confidence: 99%

Differential coupling of gibberellin responses byRht-B1csuppressor alleles andRht-B1bin wheat highlights a unique role for the DELLA N-terminus in dormancy

Velde

Chandler

Straeten

et al. 2017

EXBOTJ

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Section: Discussionmentioning

confidence: 99%

Differential coupling of gibberellin responses byRht-B1csuppressor alleles andRht-B1bin wheat highlights a unique role for the DELLA N-terminus in dormancy

Velde

Chandler

Straeten

et al. 2017

EXBOTJ

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“…Moreover, while the gibberellin biosynthetic pathways in plants and fungi are known, the same cannot be said about bacteria. Gibberellins can induce shoot growth and development and also inhibit root growth through the actions of the gibberellin signaling system, the, DELLA repressor which activates gibberellin-inducing genes (Martínez et al 2016 ; Minguet et al 2014 ; Nelson and Steber 2016 ; Wang et al 2015 ).…”

Section: Direct Mechanismsmentioning

confidence: 99%

Mechanisms of action of plant growth promoting bacteria

Olanrewaju

Glick

Babalola

2017

World J Microbiol Biotechnol

796

470

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The idea of eliminating the use of fertilizers which are sometimes environmentally unsafe is slowly becoming a reality because of the emergence of microorganisms that can serve the same purpose or even do better. Depletion of soil nutrients through leaching into the waterways and causing contamination are some of the negative effects of these chemical fertilizers that prompted the need for suitable alternatives. This brings us to the idea of using microbes that can be developed for use as biological fertilizers (biofertilizers). They are environmentally friendly as they are natural living organisms. They increase crop yield and production and, in addition, in developing countries, they are less expensive compared to chemical fertilizers. These biofertilizers are typically called plant growth-promoting bacteria (PGPB). In addition to PGPB, some fungi have also been demonstrated to promote plant growth. Apart from improving crop yields, some biofertilizers also control various plant pathogens. The objective of worldwide sustainable agriculture is much more likely to be achieved through the widespread use of biofertilizers rather than chemically synthesized fertilizers. However, to realize this objective it is essential that the many mechanisms employed by PGPB first be thoroughly understood thereby allowing workers to fully harness the potentials of these microbes. The present state of our knowledge regarding the fundamental mechanisms employed by PGPB is discussed herein.

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“…Gibberellic acid (GA) positively regulates cell division and elongation, hypocotyl and stem growth, and leaf and root meristem size (Guo et al, 2015 ; Wang et al, 2015 ; Martínez et al, 2016 ). GA signaling is a key factor in the inhibition of plant growth under stress (Magome and Kamiya, 2016 ; Martínez et al, 2016 ). PGPRs can influence the endogenous GA levels in plants (Bottini et al, 2004 ; Kang et al, 2014a ; Shahzad et al, 2016 ).…”

Section: Halotolerant Pgprsmentioning

confidence: 99%

Mining Halophytes for Plant Growth-Promoting Halotolerant Bacteria to Enhance the Salinity Tolerance of Non-halophytic Crops

2018

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Salinity stress is one of the major abiotic stresses limiting crop production in arid and semi-arid regions. Interest is increasing in the application of PGPRs (plant growth promoting rhizobacteria) to ameliorate stresses such as salinity stress in crop production. The identification of salt-tolerant, or halophilic, PGPRs has the potential to promote saline soil-based agriculture. Halophytes are a useful reservoir of halotolerant bacteria with plant growth-promoting capabilities. Here, we review recent studies on the use of halophilic PGPRs to stimulate plant growth and increase the tolerance of non-halophytic crops to salinity. These studies illustrate that halophilic PGPRs from the rhizosphere of halophytic species can be effective bio-inoculants for promoting the production of non-halophytic species in saline soils. These studies support the viability of bioinoculation with halophilic PGPRs as a strategy for the sustainable enhancement of non-halophytic crop growth. The potential of this strategy is discussed within the context of ensuring sustainable food production for a world with an increasing population and continuing climate change. We also explore future research needs for using halotolerant PGPRs under salinity stress.

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Gibberellins and plant vegetative growth

Cited by 31 publications

References 185 publications

Differential coupling of gibberellin responses byRht-B1csuppressor alleles andRht-B1bin wheat highlights a unique role for the DELLA N-terminus in dormancy

Differential coupling of gibberellin responses byRht-B1csuppressor alleles andRht-B1bin wheat highlights a unique role for the DELLA N-terminus in dormancy

Mechanisms of action of plant growth promoting bacteria

Mining Halophytes for Plant Growth-Promoting Halotolerant Bacteria to Enhance the Salinity Tolerance of Non-halophytic Crops

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