Assessment of Diversified Vegetation Community in Islamabad Vicinity, Pakistan

Ashraf, Irfan; Hussain, Tanveer; Jamil, Mahbuba; Ahmad, Iftikhar; Ahmad, Muhammad; Abbasi, Ghulam Hassan; Akram, Muhammad Adnan; Raza, MA

doi:10.18551/rjoas.2012-12.03

Cited by 3 publications

(3 citation statements)

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“…In bananas and other plant species, tissue browning of in vitro cultured shoots was positively correlated with phenolic content [39]. Accumulation of oxidative browning exudates may lead to sealing up and prevent leaching of phenolics from the base of explants [35] and diminish nutrient supply from medium to cultured explants and this may explain the decrease in growth in the present investigation. Shoot growth was improved when BAP was substituted with 2ip as cytokinin content of the shoot multiplication medium.…”

Section: Discussionmentioning

confidence: 65%

“…Natural exudates in tissue culture have been used to avoid any circumstances that prevent achieving the desired results [34]. Different trials including the addition of antioxidants, dark incubation of culture, and shortened subculture period, were investigated to avoid the toxic effect of excreted phenolic compounds on the shoot multiplication of bananas or other species [35].…”

Section: Discussionmentioning

confidence: 99%

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Alleviation of Tissue Browning During Clonal Propagation of Banana cv. Grand Naine

Hassanein,

Salem,

El-Deep

et al. 2023

Sohag Journal of Sciences

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Banana micropropagation is commercially established by shoot tips obtained from intact plants on a shoot multiplication medium under optimal culture conditions. However, this is somewhat associated with tissue browning, which may be associated with reduced efficiency of the shoot multiplication process. It was found that changes in culture conditions such as increase or decrease of incubation temperature around 27 ºC, change in the texture of the media from the solid or liquid to semisolid state, addition of ascorbic acid, and substitution of optimal concentration of benzyl amino purine (5 mg/l BAP) with 2-isopentyl adenine (4 mg/l 2ip), could reduce tissue browning but decreased shoot multiplication and growth. The present results indicated that the chemical composition of the MS medium containing 5 mg/l BAP was ideal for banana shoot multiplication. Adding some natural ingredients rich in many important components (yeast extract, coconut endosperm milk, or moringa leaf extract) was unsuitable for in vitro multiplication of bananas. The observed exception was that the growth parameters of shoots formed on MS medium of 4 mg/l 2ip were better than those formed on MS of 5 mg/l BAP. In addition, shoot multiplication on 2-isopentenyl adenine (2ip) containing media showed root formation, adaptation, and transfer of plants to soil.

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Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Alleviation of Tissue Browning During Clonal Propagation of Banana cv. Grand Naine

Hassanein,

Salem,

El-Deep

et al. 2023

Sohag Journal of Sciences

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“…However, this practice affected the diversity of the indigenous vegetation negatively, and paper mulberry is now the sixth worst plant-invader among the many non-native plant species introduced into Pakistan, (Khatoon and Ali, 1999, Alien invasive species in Pakistan, University of Karachi, Pakistan. Personal Communication) recognised as a critical factor in the transformation of the vegetation composition of the area (Ashraf et al, 2012). B. papyrifera tolerates a wide range of climates, including humid tropical (monsoon), humid and sub-humid subtropical as well as warm temperate situations.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the health impact of paper mulberry (Broussonetia papyrifera L.), an invasive plant species in Islamabad, Pakistan

Qazi

Iqbal²,

Khan³

2019

Geospat Health

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This study focuses on the risk of pollen allergy due to paper mulberry (Broussonetia papyrifera L.), an Asian invasive plant species now common in large parts of the world. Pollen plays a key role in the pathogenesis of respiratory allergic diseases, particularly rhinitis and asthma, and Islamabad, a major metropolitan city, is severely affected by allergy owing to B. papyrifera pollen. Due to its seasonality and other relationships with climatic variables, we used remote sensing to monitor the trend of pollen count. We also mapped the localisation of patients affected by pollen allergy using geographic information systems. The maximum likelihood algorithm was applied to SPOT-5 satellite imagery for land use/land cover classification. Temporal analysis of remotely sensed data revealed an increasing trend of paper mulberry density towards the southern and south-western part of Islamabad. Although not evident during rainfall, a clear positive correlation was found between patient count and pollen count. Field survey data and hotspot spatial analysis of allergy patients revealed that residents of Shakerperiyan and Lok Virsa areas (Sectors H-8, I-8, I-9, G-8, G-7 and G-6 in Islamabad) had more pronounced symptoms compared to residents of other sectors. The methodology adopted used in this study can be used to map the distribution of similar invasive species in other parts of the country.

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Invasive flora of Pakistan: a critical analysis

2014

Int. J. Biosci.

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Invasive species are mostly nonnative species introduced accidentally or intentionally by humans in natural or established habitat where they threat the environment, economy and/or health. Several thousands of the alien species have become established in different parts of the world over the past couple of centuries. This biological pollution is considered as second potential threat to natural biodiversity after habitat loss. Fortunately the magnitude of invasive species in Pakistan is not as great as in some other countries but unfortunately, there is deficit in context of invasion biology literature. Current effort intends to present a systematic review of sporadic studies undertaken in past to record invasive alien plant species on a small scale with prime goals of: establishing a preliminary inventory of reported invasive plants; analyze the family and life form contribution in total invasive flora; describe status, impacts, management approaches and world's perspective about worst terrestrial invasive plants in Pakistan.

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Assessment of Diversified Vegetation Community in Islamabad Vicinity, Pakistan

Cited by 3 publications

References 10 publications

Alleviation of Tissue Browning During Clonal Propagation of Banana cv. Grand Naine

Alleviation of Tissue Browning During Clonal Propagation of Banana cv. Grand Naine

Assessment of the health impact of paper mulberry (Broussonetia papyrifera L.), an invasive plant species in Islamabad, Pakistan

Invasive flora of Pakistan: a critical analysis

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