Microarray analysis of humic acid effects on Brassica napus growth: Involvement of N, C and S metabolisms

Jannin, Laëtitia; Arkoun, Mustapha; Ourry, Alain; Laîné, Philippe; Goux, Didier; Garnica, María; Fuentes, Marta; Francisco, Sara San; Baigorri, Roberto; Cruz, Florence; Houdusse, Fabrice; García-Mina, José M.; Yvin, Jean-Claude; Étienne, Philippe

doi:10.1007/s11104-012-1191-x

Cited by 147 publications

(156 citation statements)

References 67 publications

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“…The positive influence of tested products on chlorophyll content and Pn (Table 4 and Table 5) is in agreement with previous works conducted on plant biostimulation obtained with various substances and products (e.g. Amanda et al, 2009, Anjum et al, 2011, Ertani et al, 2013b, Fascella et al, 2015and Jannin et al, 2012. Furthermore, the relationship between SPAD index and leaf colour (e.g.…”

Section: Discussionsupporting

confidence: 91%

“…More generally, biostimulant substances augment biomass accumulation and yield, improve nutrient uptake and enhance metabolic functions. Also, many biostimulant organic substances, such as algae and/or seaweed extract, soil and water humic and fulvic acid, have been found to improve photosynthetic capacity in several different plant species, which are grown either under optimal conditions (Castro et al, 2012 andJannin et al, 2012) or in presence of abiotic stress (Anjum et al, 2011 andErtani et al, 2013b). Humic-like substances, obtained from different organic wastes, fall in this category, either for their chemical nature or for their biostimulant activity (Eyheraguibel et al, 2008 andMorard et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…To this purpose, most of literature is based on the study of extensive crops, cultivated on soil and treated through foliar application (e.g. Anjum et al, 2011 andJannin et al, 2012). By comparison, very little is known on potted ornamental plants cultivated in substrate and treated directly in the root zone.…”

Section: Discussionmentioning

confidence: 99%

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Application of municipal biowaste derived products in Hibiscus cultivation: Effect on leaf gaseous exchange activity, and plant biomass accumulation and quality

Massa¹,

Prisa²,

Montoneri³

et al. 2016

Scientia Horticulturae

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Highlights•Fermented organic materials and their hydrolysates were tested on substrate-grown Hibiscus.•Positive effects were observed on total biomass, plant height, SPAD index and net photosynthesis compared with untreated plants.•Tested products performed at the same level of a commercial product.•Obtained results represent a step forward for the application of biowaste hydrolysates in intensive substrate cultures. AbstractTwo urban biowaste materials, fermented under anaerobic and aerobic conditions, their soluble and insoluble alkaline hydrolysates, and a commercial biostimulant product, were compared for their capacity to boost Hibiscus crop production and quality. Plants were grown in 4-litre pots, containing peat and pumice as substrate, under optimal growing conditions. A randomized-block experimental design was adopted. Two types (main factors of variability) of treatments were applied, i.e. by blending the above products with the substrate at transplant, and by fertigation using the soluble hydrolysates only. Plant biomass characteristics and ecophysiological parameters were measured. Mean effect of factors and their interactions were assessed by two-way ANOVA. Principal component analysis was performed by using the different dependent variables to summarize the most relevant differences among treatments. Compared with the control (untreated plants), the applied treatments enhanced most of the investigated parameters. The most valuable effects were observed for total biomass accumulation (+25%), plant height (+10%), leaf chlorophyll SPAD index (+15%) and net photosynthesis (+24%). The hydrolysates performed better than the pristine materials. The former ones were comparable to the commercial biostimulant. The results confirmed the hypothesis that biowaste derived products induce biostimulant activity on Hibiscus; their application can improve cultivation sustainability. ); SD, soluble digestate hydrolysate obtained from the alkaline hydrolysis of D; SGC, soluble compost hydrolysate obtained from the alkaline hydrolysis of GC; SUB, treatments applied to the substrate as a powder blended with the substrate; T 1 , beginning of the experimentation (30 days after transplant) (day)

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

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Application of municipal biowaste derived products in Hibiscus cultivation: Effect on leaf gaseous exchange activity, and plant biomass accumulation and quality

Massa¹,

Prisa²,

Montoneri³

et al. 2016

Scientia Horticulturae

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“…This study concluded that the major pathways in the roots affected by humic substances were sucrose metabolism, malate dehydrogenase, ATPases, and cytoskeletal proteins. Transcriptomic analyses with microarrays of metabolic targets of humic acids were reported on winter oilseed rape (Brassica napus), a crop which has low nitrogen use efficiency (Jannin et al 2012). In plants treated with a humic acid fraction that elicited significant increases in plant dry weight and chlorophyll content 30 days after treatment, genes that were up-or down-regulated were identified.…”

Section: Plant Physiology and Metabolismmentioning

confidence: 99%

Agricultural uses of plant biostimulants

2014

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Background Plant biostimulants are diverse substances and microorganisms used to enhance plant growth. The global market for biostimulants is projected to increase 12 % per year and reach over $2,200 million by 2018. Despite the growing use of biostimulants in agriculture, many in the scientific community consider biostimulants to be lacking peer-reviewed scientific evaluation. Scope This article describes the emerging definitions of biostimulants and reviews the literature on five categories of biostimulants: i. microbial inoculants, ii. humic acids, iii. fulvic acids, iv. protein hydrolysates and amino acids, and v. seaweed extracts.Conclusions The large number of publications cited for each category of biostimulants demonstrates that there is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species. The cited literature also reveals some commonalities in plant responses to different biostimulants, such as increased root growth, enhanced nutrient uptake, and stress tolerance.

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“…For instance, Jannin et al [49] used microarray analysis to evaluate genes involved in physiological response of Brassica napus to HS and indentified over expression in nine clusters, which covered the major metabolic plant functions: carbon and photosynthesis, general cell metabolism, fatty acids, nitrogen/sulphur, phytohormones, plant development, senescence, responses to stress and transport of ions and water. HS can thus induce carbon and nitrogen metabolism and a plethora of cell process can be down or up regulated [48].…”

Section: Changes On Primary and Secondary Metabolismmentioning

confidence: 99%

Physiological responses to humic substances as plant growth promoter

Canellas

Olivares

2014

Chem Biol Techn Agric

342

243

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Humic substances (HS) have been widely recognized as a plant growth promoter mainly by changes on root architecture and growth dynamics, which result in increased root size, branching and/or greater density of root hair with larger surface area. Stimulation of the H + -ATPase activity in cell membrane suggests that modifications brought about by HS are not only restricted to root structure, but are also extended to the major biochemical pathways since the driving force for most nutrient uptake is the electrochemical gradient across the plasma membrane. Changes on root exudation profile, as well as primary and secondary metabolism were also observed, though strongly dependent on environment conditions, type of plant and its ontogeny. Proteomics and genomic approaches with diverse plant species subjected to HS treatment had often shown controversial patterns of protein and gene expression. This is a clear indication that HS effects of plants are complex and involve non-linear, cross-interrelated and dynamic processes that need be treated with an interdisciplinary view. Being the humic associations recalcitrant to microbiological attack, their use as vehicle to introduce beneficial selected microorganisms to crops has been proposed. This represents a perspective for a sort of new biofertilizer designed for a sustainable agriculture, whereby plants treated with HS become more susceptible to interact with bioinoculants, while HS may concomitantly modify the structure/activity of the microbial community in the rhizosphere compartment. An enhanced knowledge of the effects on plants physiology and biochemistry and interaction with rhizosphere and endophytic microbes should lead to achieve increased crop productivity through a better use of HS inputs in Agriculture.

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Microarray analysis of humic acid effects on Brassica napus growth: Involvement of N, C and S metabolisms

Cited by 147 publications

References 67 publications

Application of municipal biowaste derived products in Hibiscus cultivation: Effect on leaf gaseous exchange activity, and plant biomass accumulation and quality

Application of municipal biowaste derived products in Hibiscus cultivation: Effect on leaf gaseous exchange activity, and plant biomass accumulation and quality

Agricultural uses of plant biostimulants

Physiological responses to humic substances as plant growth promoter

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