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Klerk, G.J.M. de; Brugge, J. Ter; Marinova, S.

doi:10.1023/a:1005850222973

Cited by 116 publications

(19 citation statements)

References 13 publications

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“…In comparison to IAA, which is irreversibly conjugated and oxidize quickly in the plant cells, NAA conjugates well, do not oxidize and may be released as free auxin at any time (Peeters et al 1991). Furthermore, the fact that NAA uptake is faster than other auxins for instance 2,4-D and IAA in our experiments, supported the positive effects of NAA during adventitious roots formation (De Klerk et al 1997). Significantly lower values of induction frequency and biomass accumulation were observed on 2,4-D (Table 1).…”

Section: Induction and Establishment Of Adventitious Rootssupporting

confidence: 76%

“…The formation and proliferation of adventitious roots result from primary growth, which has comparatively few vascular and mechanical tissues while in secondary growth relatively thickening of primary roots occur (Zhang et al 2011(Zhang et al , 2012. One reason for the higher activity of NAA compared to other auxins might be that NAA is the more persistent type of auxins, possessing a higher half-life compared to IAA and 2, 4-D in the plant tissues (De Klerk et al 1997). In comparison to IAA, which is irreversibly conjugated and oxidize quickly in the plant cells, NAA conjugates well, do not oxidize and may be released as free auxin at any time (Peeters et al 1991).…”

Section: Induction and Establishment Of Adventitious Rootsmentioning

confidence: 99%

“…It is found in northern hilly areas of Pakistan and locally called as ''Kori Booti'' due to its acrid taste (Arfan et al 1996). This herb has a vast variety of medicinal uses and is being used since ancient times for treatment of multiple diseases such as malaria, gout, rheumatism, palsy diabetes, hypertension, fever, stomach pain and amenorrhoea and as tonic and in the treatment of agues (Chopra et al 1956). It is said to prevent cancer, gastrointestinal disorders, worm infestations, urinary disorders, fungal infections, inflammation and tuberculosis (Jan et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Impacts of methyl jasmonate and phenyl acetic acid on biomass accumulation and antioxidant potential in adventitious roots of Ajuga bracteosa Wall ex Benth., a high valued endangered medicinal plant

Saeed

Ali

Khan

et al. 2017

Physiol Mol Biol Plants

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Ajuga bracteosa is a medicinally important plant globally used in the folk medicine against many serious ailments. In the present study, effects of two significant elicitors, methyl jasmonate (Me-J) and phenyl acetic acid (PAA) were studied on growth parameters, secondary metabolites production, and antioxidant potential in adventitious root suspension cultures of A. bracteosa. The results showed a substantial increase in biomass accumulation, exhibiting longer log phases of cultures growth in response to elicitor treatments, in comparison to control. Maximum dry biomass formation (8.88 DW g/L) was recorded on 32nd day in log phase of culture when 0.6 mg/L Me-J was applied; however, PAA at 1.2 mg/L produced maximum biomass (8.24 DW g/L) on day 40 of culture. Furthermore, we observed the elicitors-induced enhancement in phenolic content (total phenolic content), flavonoid content (total flavonoid content) and antioxidant activity (free radical scavenging activity) in root suspension cultures of A. bracteosa. Application of 0.6 mg/L and 1.2 mg/L of Me-J, root cultures accumulated higher TPC levels (3.6 mg GAE/g DW) and (3.7 mg GAE/g DW) in the log phase and stationary phase, respectively, while 2.5 mg/L Me-J produced lower levels (1.4 mg GAE/g DW) in stationary phase of growth stages. Moreover, TFC and FRSA values were found in correspondence to TPC values in the respective growth phases at the similar elicitor treatment. Thus, a feasible protocol for establishment of adventitious roots in A. bracteosa was developed and enhancement in biomass and metabolite content in adventitious root was promoted through elicitation.

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Section: Induction and Establishment Of Adventitious Rootssupporting

confidence: 76%

Section: Induction and Establishment Of Adventitious Rootsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impacts of methyl jasmonate and phenyl acetic acid on biomass accumulation and antioxidant potential in adventitious roots of Ajuga bracteosa Wall ex Benth., a high valued endangered medicinal plant

Saeed

Ali

Khan

et al. 2017

Physiol Mol Biol Plants

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“…IBA is less sensitive than IAA to non-biological degradation such as photo-oxidation (Epstein and Ludwig-Muller 1993;De Klerk et al 1997). Alternatively, there may be a difference in rate of uptake and metabolism of the two auxins as demonstrated in apple and Grevillea microcuttings (De Klerk et al 1997;Krisantini et al 2006).…”

Section: Selection Of Materialsmentioning

confidence: 99%

Effect of auxins on adventitious rooting from stem cuttings of candidate plus tree Pongamia pinnata (L.), a potential biodiesel plant

Kesari

Krishnamachari

Rangan

2008

Trees

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Pongamia pinnata, commercially important tree species used to produce biofuels, is known for its multipurpose benefits and its role in agro-forestry. Present study examines the amenability of vegetative propagation and effect of maturation in candidate plus tree P. pinnata through rooting of stem cuttings treated with varying concentrations and combinations of auxins. The performance of the cuttings was evaluated using SAS GLM software and the data were analyzed as a one-way classified data with and without sub sampling for inferring auxin concentration that can be included in programmes aimed at genetic improvement of the tree species. All auxin treatments promoted sprouting and at lower concentrations triggered/enhanced rooting of cuttings. The effectiveness was in the order of IBA [ NAA [ IAA when applied singly. IBA at 4.92 mM was found to be most effective where rooting percentage and number of roots were significantly higher (P \ 0.01) than in control. However higher concentrations of auxins above 7 mM in general inhibited the rooting of cuttings. The interaction among auxins was found to be effective in root induction and differentiation and the most stimulating effects were observed in three-component mixture. The effect of other cutting characteristics such as juvenility and cutting position on rooting is also discussed.

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“…Adventitious root formation (ARF) is a critical step in vegetative propagation. An efficient rooting treatment can lead to a high percentage of rooting and a higher quality of the root system (De Klerk et al 1997). Quality involves root number and length, and the absence of callus at the base of a shoot, all of which influence the performance of the plants after transfer to soil (Mohammed and Vidaver 1990).…”

Section: Introductionmentioning

confidence: 99%

Adventitious rooting of conifers: influence of physical and chemical factors

Ragonezi

Klimaszewska

Castro

et al. 2010

Trees

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In conifers, vegetative propagation of superior genotypes is the most direct means for making large genetic gains, because it allows a large proportion of genetic diversity to be captured in a single cycle of selection. There are two aims of vegetative propagation, namely large-scale multiplication of select genotypes and production of large numbers of plants from scarce and costly seed that originates from controlled seed orchard pollinations. This can be achieved, in some species, either through rooted cuttings or rooted microshoots, the latter regenerated through tissue culture in vitro. Thus far, both strategies have been used but often achieved limited success mainly because of difficult and inefficient rooting process. In this overview of technology, we focus on the progress in defining the physical and chemical factors that help the conifer cuttings and microshoots to develop adventitious roots. These factors include plant growth regulators, carbohydrates, light quality, temperature and rooting substrates/media as major variables for development of reliable adventitious rooting protocols for different conifer species.

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Untitled

Cited by 116 publications

References 13 publications

Impacts of methyl jasmonate and phenyl acetic acid on biomass accumulation and antioxidant potential in adventitious roots of Ajuga bracteosa Wall ex Benth., a high valued endangered medicinal plant

Impacts of methyl jasmonate and phenyl acetic acid on biomass accumulation and antioxidant potential in adventitious roots of Ajuga bracteosa Wall ex Benth., a high valued endangered medicinal plant

Effect of auxins on adventitious rooting from stem cuttings of candidate plus tree Pongamia pinnata (L.), a potential biodiesel plant

Adventitious rooting of conifers: influence of physical and chemical factors

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