Protective Mechanisms of Melatonin Against Vanadium Phytotoxicity in Tomato Seedlings: Insights into Nutritional Status, Photosynthesis, Root Architecture System, and Antioxidant Machinery

Altaf, Muhammad Ahsan; Shahid, Rabia; Ren, Ming‐Xun; Khan, Latif Ullah; Altaf, Muhammad Mohsin; Jahan, Mohammad Shah; Nawaz, Muhammad Azher; Naz, Safina; Shahid, Sidra; Lal, Milan Kumar; Tiwari, Rahul Kumar; Shahid, Muhammad Adnan

doi:10.1007/s00344-021-10513-0

Cited by 34 publications

(19 citation statements)

References 73 publications

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“…Nawaz et al [15] reported that V application dramatically decreased root traits of watermelon seedlings. Similarly, our previous study revealed that V-treated tomato seedlings impaired root architecture and mineral nutrient uptake [20]. Moreover, in chickpea, higher V concentration considerably decreased root morphological traits, such as root length, volume, surface area, forks, tips, and crossings [21].…”

Section: Introductionsupporting

confidence: 60%

“…In this research, higher V (20, 30, 40, and 50 mg) concentrations significantly decreased the levels of chlorophyll a, chlorophyll b, and carotenoids in tomato seedlings (Figure 6A-C). In our previous study, V treated tomato seedlings showed a significant decline in pigments content [20]. Similarly, in another study, Sarafi et al [45] reported that boron (100 µM) supplementation remarkably reduced chlorophyll a, chlorophyll b and carotenoids content of pepper seedlings.…”

Section: Discussionmentioning

confidence: 52%

“…The results of present study revealed that V (20, 30, 40, and 50 mg) supplementation significantly reduced the growth attributes of pepper seedlings (Table 1, Figure 2). In our recent study, Altaf et al [20] observed that V (40 mg) application effectively decreased the growth status (FSW, FRW, DSW, DRW) of tomato seedlings. In another work, higher V concentrations negatively affected the growth of rice and chickpea [12,21].…”

Section: Discussionmentioning

confidence: 75%

“…Our results stated that V application significantly increased the level of H 2 O 2 in pepper seedlings (Figure 8A). In a recent study, Altaf et al [20] found that V supplementation remarkably enhanced the production of H 2 O 2 in tomato seedling. In another study, under V stress, the level of H 2 O 2 was increased in watermelon seedlings [15].…”

Section: Discussionmentioning

confidence: 96%

“…Previously, García-Jiménez et al [10] reported that V (5 µM) stimulates pepper growth and development by enhancing biomass production and yield. V negatively affects plant growth in many plant species by hampering the antioxidant mechanisms under its toxicity [15,20]. The reports on the physiological and biochemical response under V toxicity of the pepper plant are still low in number, which warrants further investigation.…”

Section: Introductionmentioning

confidence: 99%

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Vanadium Toxicity Induced Changes in Growth, Antioxidant Profiling, and Vanadium Uptake in Pepper (Capsicum annum L.) Seedlings

et al. 2021

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Heavy metal contamination is one of the current serious environmental and agricultural soil issues, and it is mainly due to anthropogenic activities. Vanadium (V) is found in low concentrations in a wide range of plants and is widely distributed in soils. The current study aimed to determine how pepper seedlings responded to various V concentrations, as well as the detrimental effects of V on growth, root morphological traits, photosynthetic performance, reactive oxygen species (ROS), osmolytes production, antioxidant enzyme activities, and V uptake. Pepper seedlings (5 weeks old) were grown in hydroponic culture with six V levels (0, 10, 20, 30, 40, and 50 mg L−1 NH4VO3). After two weeks of V treatment, low level of V (10, 20 mg L−1) enhanced the growth status, conversely higher V (30, 40, and 50 mg L−1) level reduced the growth. The leaf gas exchange elements, pigments molecules, and root growth characteristics are also affected by higher V concentrations. Moreover, V uptake was higher in roots than in the shoot of pepper seedlings. Similarly, osmolytes content, ROS production, and antioxidant enzymes activities were significantly improved under V stress. Concluding, lower V (10, 20 mg L−1) concentration positively affected pepper growth, and higher V (30, 40, and 50 mg L−1) concentration had a detrimental effect on pepper physiological and biochemical mechanisms.

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Section: Introductionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 52%