Growth parameters and antioxidant enzymes activities in selected halophytic grass species against salinity stress from Cholistan rangeland, Pakistan

Rafay, Muhammad; Abid, Muhammad; Abdullah, Muhammad; Malik, Zaffar; Makki, Hussain Ahmed; Ahmed, Zulfiqar; Riaz, Muhammad Umair

doi:10.30848/pjb2021-3(22)

Cited by 5 publications

(5 citation statements)

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“…This study revealed a composition of species of poaceae family that are similar to the ones reported by Rafay et al [15], where Eragrostis sp. was the most dominant at 18.5 percent, followed by Cenchrus and Aristida sp.…”

Section: Discussionsupporting

confidence: 89%

Ecological Survey on Species of Poaceae Family Present in Nnamdi Azikiwe University Campus Awka, Anambra State

Adachukwu,

Kenneth,

Chukwu

et al. 2023

AJEE

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An ecological survey was done on the species of poaceae family present in Nnamdi Azikiwe University Awka campus. Data was collected from eight different zones of the campus which was randomly divided for adequate coverage and proper representation. Species dominance, percentage cover of species, abundance and diversity of poaceae species were recorded. The result of the study showed that a total of 24 poaceae species were identified in the study area; Eleusine indica had the highest species abundance across the eight zones, with a total frequency of 36 and a total average cover of 28.59, while Sporobulus pyramidalis is the second most abundant with a frequency of 35 and Pennisetum polystachion is the third most abundant with a frequency of 25. The result went further to show the various distributions of the poaceae species across the different zones. Eleusine indica had a relative abundance of 19.4%, followed by Sporobulus pyramidalis (16%) and Pennisetum polystachion (13.5%). More so, Andropogon gayanus had a relative abundance of (8.1%) while Andropogon tectorum, Brachiaria falcifera, Dactyloctenium aegyptium and Digistaria horizontalis as well as Eragrostis tenella, Eragrostis tremela, Panicum maximum and Pennisetum violaccum all had the lowest relative abundance of 0.5 % each. The result of Shannon Wiener index for species of poaceae family in the study area was 2.59 and this showed that there is high diversity of species of poaceae family in the study area which invariably indicates a great potential for utilization in conservation and ecological purposes.

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Section: Discussionsupporting

confidence: 89%

Ecological Survey on Species of Poaceae Family Present in Nnamdi Azikiwe University Campus Awka, Anambra State

Adachukwu,

Kenneth,

Chukwu

et al. 2023

AJEE

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“…The C 4 grass species Aeluropus lagopoides (L.) Thwaites and Panicum antidotales Retz. have been reported to retain similar shoot moisture with increasing salinity levels from 0 to 140 mM NaCl ( Rafay et al, 2021 ). Maintenance of water balance in salt tolerant grasses is associated with the accumulation of organic osmolytes including proline and sugars which balance against negative osmotic pressure exerted by Na + ions in the media around roots ( Xu and Fujiyama, 2013 ).…”

Section: Resultsmentioning

confidence: 99%

“…In the leaves, halophytes suppress leakage of K + ions to the apoplasm by maintaining membrane stability as observed in halophytic grass Panicum antidotales Retz. and Aeluropus lagopoides (L.) Thwaites grown in saline environments up to 140 mM NaCl ( Rafay et al, 2021 ). In addition, at moderate salinity (100 mM NaCl), Panicum antidotales Retz.…”

Section: Resultsmentioning

confidence: 99%

Crop Species Mechanisms and Ecosystem Services for Sustainable Forage Cropping Systems in Salt-Affected Arid Regions

et al. 2022

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Soil salinity limits crop productivity in arid regions and it can be alleviated by crop synergies. A multivariate analysis of published data (n = 78) from arid and semiarid habitats across continents was conducted to determine the crop species mechanisms of salinity tolerance and synergies relevant for designing adapted forage cropping systems. Halophyte [Cynodon plectostachus (K. Schum.) Pilg.] and non-halophyte grasses (Lolium perenne L. and Panicum maximum Jacq.) clustered along increasing soil salinity. Halophytic grasses [Panicum antidotale Retz. and Dicanthum annulatum (Forssk.) Stapf] congregated with Medicago sativa L., a non-halophytic legume along a gradient of increasing photosynthesis. Halophytic grasses [Sporobolus spicatus (Vahl) Kunth, and Cynodon plectostachyus (K. Schum.) Pilg.] had strong yield-salinity correlations. Medicago sativa L. and Leptochloa fusca L. Kunth were ubiquitous in their forage biomass production along a continuum of medium to high salinity. Forage crude protein was strongly correlated with increasing salinity in halophytic grasses and non-halophytic legumes. Halophytes were identified with mechanisms to neutralize the soil sodium accumulation and forage productivity along an increasing salinity. Overall, halophytes-non-halophytes, grass-forbs, annual-perennials, and plant-bacteria-fungi synergies were identified which can potentially form cropping systems that can ameliorate saline soils and sustain forage productivity in salt-affected arid regions.

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“…Cold stress enhances plant growth and biomass production, which may result in a bushy appearance [ 33 ]. This species is relatively less tolerant to salinity stress [ 34 ]. The population collected from the saline area showed minimum growth and development of underground and aboveground plant organs.…”

Section: Discussionmentioning

confidence: 99%

Structural and Functional Strategies in Cenchrus Species to Combat Environmental Extremities Imposed by Multiple Abiotic Stresses

Basharat,

Ahmad,

Hameed

et al. 2024

Plants

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Multiple abiotic stresses such as drought, salinity, heat, and cold stress prevailing in natural habitats affect plant growth and development. Different species modify their structural and functional traits to combat these abiotic stresses while growing in stressful environments. Cenchrus species, i.e., Cenchrus pennisetiformis, C. setiger, and C. prieurii are widely distributed grasses found growing all over the world. Samples from natural populations were collected from different ecological regions in the Punjab and Khyber Pakhtoonkhwa that were exposed to aridity, salinity, and cold, while one site was designated as normal control. In the present study, structural and functional modifications of three Cenchrus species under abiotic stresses were evaluated. It was expected that each Cenchrus species may evolve different strategies to cope with multiple abiotic stresses. All Cenchrus species responded differently whether growing in normal environment or stressful conditions. The most remarkable feature for survival in C. pennisetiformis under cold stress was increased inflorescence and increased stem and root lignification. C. prieurii showed better tolerance to saline and cold environments. C. setiger showed better development of leaf sheath anatomical traits. The structural and functional modifications in Cenchrus species such as development of mechanical tissues provided structural support, while dermal and parenchymatous tissues increased water storage capacity and minimized water loss. An increase in the concentration of organic osmolytes and ionic content aids turgor pressure maintenance and ionic content crucial for plant growth and development. It was concluded that structural and functional alterations in all Cenchrus species were very specific and critical for survival under different environmental stresses. The ecological fitness of these species relied on maintenance of growth and biomass production, and the development of mechanical, vascular, dermal and parenchyma tissues under stressful environmental conditions. Moreover, accumulation of beneficial ions (K+ and Ca2+) and organic osmolytes were critical in turgor maintenance, hence survival of Cenchrus spp.

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Growth parameters and antioxidant enzymes activities in selected halophytic grass species against salinity stress from Cholistan rangeland, Pakistan

Cited by 5 publications

References 0 publications

Ecological Survey on Species of Poaceae Family Present in Nnamdi Azikiwe University Campus Awka, Anambra State

Ecological Survey on Species of Poaceae Family Present in Nnamdi Azikiwe University Campus Awka, Anambra State

Crop Species Mechanisms and Ecosystem Services for Sustainable Forage Cropping Systems in Salt-Affected Arid Regions

Structural and Functional Strategies in Cenchrus Species to Combat Environmental Extremities Imposed by Multiple Abiotic Stresses

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