Enhanced in vitro regeneration and change in photosynthetic pigments, biomass and proline content in Withania somnifera L. (Dunal) induced by copper and zinc ions

Fatima, Nishat; Ahmad, Naseem; Anis, Mohammad

doi:10.1016/j.plaphy.2011.08.011

Cited by 56 publications

(25 citation statements)

References 27 publications

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“…b)/car ratio could be explained by a greater inhibitory effect on Chl b than Chl a and induction of the senescence process after the longer MJ incubation, respectively. In general, photosynthetic pigments either decrease significantly after exposure to Cu (Maksymiec and Baszyński 1996b) or no effect is observed (Burzyński and _ Zurek 2007); however, we indicated that Cu increased Chl accumulation, which is in agreement with the results obtained at 80-lM Cu supplementation (Maksymiec and Baszyński 1996b) and 100-lM Cu treatment (Fatima et al 2011). In our research, MJ without metal supplementation did not alter the pigment content, although JA treatment can result not only in Chl reduction as a consequence of induction of the chlorophyllase gene (Tsuchiya et al 1999), but also in Rubisco subunit reduction (Rakwal and Komatsu 2000).…”

Section: Discussionsupporting

confidence: 91%

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The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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Phaseolus coccineus plants in the early growth stage were preincubated with 10 -5 M methyl jasmonate (MJ) for 1 or 24 h and subsequently transferred to a Hoagland solution or treated with 50 or 100 lM copper (Cu). After 6-day exposure to the metal, plant growth, relative water content, electrolyte leakage, the content of Cu and photosynthetic pigments, and chlorophyll fluorescence parameters were assayed. Generally, under Cu excess, MJ did not modulate growth parameters such as leaf area, root growth, shoot and root fresh weight, and the shoot/root fresh weight ratio. The content of chlorophyll a, b, and carotenoids increased with the increasing Cu content in the leaves. However, a correlation between the reduction of the leaf area and the lower content of the three photosynthetic pigments for 24-h MJ ? 100-lM Cu treatment compared with metal alone was noted. The decrease in the Cu concentration was MJ-dependent only after 1-h MJ ? 50-lM Cu treatment in leaves and after 24-h MJ ? 100-lM Cu treatment in roots. Chlorophyll fluorescence was a weak indicator of the effect induced by MJ in Cu excess, and the most spectacular increase was observed for 1-h and 24-h MJ ? 50 lM Cu in the LNU and for 1-h MJ ? 50 lM Cu in the NPQ parameter. These results suggested a lack of a clear pattern for MJ altering the Cu stress in the runner bean plants. The most important finding was that photosynthesis seemed to be quite resistant to Cu stress and slight modifications in chlorophyll fluorescence were accompanied by significant changes in growth parameters, photosynthetic pigment content, and metal content in the plant. The results obtained may have been strongly related to the plant growth stage, as the measured parameters transform greatly during plant growth and development.

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Section: Discussionsupporting

confidence: 91%

“…Moreover, the good condition of chloroplasts (membranes and granal structures) and the Cu supplementation-induced higher Chl content also detected by other scientists (Maksymiec and Baszyński 1996b;Fatima et al 2011) could be the explanation for the not severely affected chlorophyll fluorescence parameters.…”

Section: Discussionmentioning

confidence: 52%

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

2015

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“…Furthermore, proline production is related to the stress response factors in plants, including toxicity and/or nutrient deficiency (Ahmed and Hasan, 2011;Fatima et al, 2011). However, in our results, the increase of the proline content was not related to a state of stress in lulo seedlings.…”

Section: Discussioncontrasting

confidence: 77%

THE EFFECT OF FOLIAR APPLICATIONS OF A BIO-STIMULANT DERIVED FROM ALGAE EXTRACT ON THE PHYSIOLOGICAL BEHAVIOR OF LULO SEEDLINGS (Solanum quitoense CV. SEPTENTRIONALE)

et al. 2016

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Cien. Inv. Agr. 43(1):25-37. Seaweed extracts are used as nutritional supplements, biostimulants, or biofertilizers in agriculture and horticulture to increase plant growth and yield. In this experiment, foliar applications of bio-stimulant derivate from seaweed extract were tested on plant growth, leaf gas exchange properties, and proline accumulation in lulo seedlings cultivated under greenhouse conditions. Lulo plants were split into four treatments: (i) plants with soil fertilizer; (ii) plants treated only with foliar bio-stimulant sprays; (iii) a combination of soil fertilizer plus a foliar bio-stimulant application; and (iv) a control treatment (without nutrient application). Lulo plants treated with soil fertilizer and foliar bio-stimulants increased growth, as this group of plants showed a higher total plant dry weight, stem diameters, and absolute growth rate. Lulo plants without soil fertilizater and treated with foliar bio-stimulant application had lower leaf gas exchange (photosynthesis, stomatal conductance, and plant transpiration) and leaf chlorophyll content. Foliar biostimulant sprays enhanced the partitioning of dry mass in floral cushions. In conclusion, the application of foliar bio-stimulant applications as a complement to soil fertilizer is a technique that can be employed in the cultivation of lulo because foliar sprays of these kinds of agrochemicals can enhance dry matter accumulation and blooming.

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“…A huge variation in metals tolerance was observed between different species. This variation could be used for crop improvement by identifying the tolerant species and then studying the mechanisms of tolerance and the possibility of identifying the responsible genes (Hall 2002;Yruela 2009;Fatima et al 2011). Recently, researchers reported Cd tolerant plant species S. cathayana and L. plyneura that can accumulate high concentrations of cadmium in certain parts such as the root system (Das et al 1997;Yanqun et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Cadmium, copper and zinc toxicity effects on growth, proline content and genetic stability of Solanum nigrum L., a crop wild relative for tomato; comparative study

Khateeb

Al-Qwasemeh

2013

Physiol Mol Biol Plants

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Plants like other organisms are affected by environmental factors. Cadmium, copper and zinc are considered the most important types of pollutants in the environment. In this study, a comparison of growth and biochemical parameters between the crop wild relative (CWR) Solanum nigrum versus its cultivated relative Solanum lycopersicum to different levels of Cu, Zn and Cd stress were investigated. The presence of ZnSO 4 and CuSO 4 in Murashige and Skoog medium affected severely many growth parameters (shoot length, number of roots and leaves, and fresh weight) of both S. nigrum and S. lycopersicum at high levels. On the other hand, CdCl 2 significantly reduced most of the studied growth parameters for both species. S. nigrum exhibited higher tolerance than S. lycopersicum for all types of stress. In addition, results show that as stress level increased in the growing medium, proline content of both S. nigrum and S. lycopersicum increased. A significant difference was observed between the two species in proline accumulation as a result of stress. In addition, a higher accumulation rate was observed in the crop wild relative (S. nigrum) than in cultivated S. lycopersicum. Changes in Inter-simple sequence repeat (ISSR) pattern of CuSO 4 treated S. nigrum and S. lycopersicum plants were also observed. In conclusion, based on growth and biochemical analysis, S. nigrum showed higher level of metals tolerance than S. lycopersicum which indicates the possibility of using it as a crop wild relative for S. lycopersicum.

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Enhanced in vitro regeneration and change in photosynthetic pigments, biomass and proline content in Withania somnifera L. (Dunal) induced by copper and zinc ions

Cited by 56 publications

References 27 publications

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

The effect of methyl jasmonate on selected physiological parameters of copper-treated Phaseolus coccineus plants

THE EFFECT OF FOLIAR APPLICATIONS OF A BIO-STIMULANT DERIVED FROM ALGAE EXTRACT ON THE PHYSIOLOGICAL BEHAVIOR OF LULO SEEDLINGS (Solanum quitoense CV. SEPTENTRIONALE)

Cadmium, copper and zinc toxicity effects on growth, proline content and genetic stability of Solanum nigrum L., a crop wild relative for tomato; comparative study

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