Cytological status of Allium hookeri Thwaites (2n = 22)

Sharma, Geeta; Gohil, R. N.; Kaul, Veenu

doi:10.1007/s10722-010-9641-x

Cited by 29 publications

(16 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand L. cylindrica shows much higher frequency of abnormalities in pollen mother cells. These Meiotic irregularities leading to dip in pollen viability is expected and is reported in several angiosperm taxa [10,[18][19][20][21]. The disadvantage in the meiotic system not withstanding L. cylindrica is reproductively much efficient as compared to L. acutangula.…”

Section: Discussionmentioning

confidence: 52%

Reproductive efficiency of two Luffa species - Factors affecting low reproductive rate in meiotically stable Luffa acutangula (L.) Roxb.

Jamwal

Sharma

2015

Nucleus

View full text Add to dashboard Cite

Two species of genus Luffa, namely L. cylindrica and L. acutangula have been analyzed during the present study for the details of morphological and meiotic variability. While the former is found only in cultivation, the latter is cultivated on a small scale and also grows in wild in Jammu district of J&K state (India). These species match in their gross morphology and in having a diploid chromosome number of 2n=26. Of the two, L. acutangula is more efficient in its meiotic system displaying minimum abnormalities and showing higher pollen viability (70.64 %) as compared to L. cylindrica which has slightly abnormal meiosis resulting in lower pollen viability (30.34 %). Inspite of this low pollen viability, L .cylindrica is reproductively much efficient than L. acutangula in terms of % age fruit and seed set and fruit size. Latter lags behind because of some disadvantages in reproductive features including size of flower, time of anthesis, availability of pollinators and rewards offered. All these factors lead to limited pollen transfer resulting in dip in reproductive efficiency.

show abstract

Section: Discussionmentioning

confidence: 52%

Reproductive efficiency of two Luffa species - Factors affecting low reproductive rate in meiotically stable Luffa acutangula (L.) Roxb.

Jamwal

Sharma

2015

Nucleus

View full text Add to dashboard Cite

show abstract

“…4d). Sharma et al (2011) documented that A. hookeri is a segmental allotriploid since its karyotype can be split into 7 pairs with minor differences and 8 single chromosomes. Taking the paraphyletic relationships among the species with x = 11 into consideration (Huang 2014), we advocate that all species within sect.…”

Section: Discussionmentioning

confidence: 99%

Cytotaxonomy of Allium (Amaryllidaceae) subgenera Cyathophora and Amerallium sect. Bromatorrhiza

Guo

et al. 2017

Phytotaxa

View full text Add to dashboard Cite

In the present study, we examined the karyotype data of subg. Cyathophora and sect. Bromatorrhiza, to determine some disputed karyotypes (e.g., A. spicatum and A. fasciculatum), and further to estimate the karyotype evolution along their phylogenetic frameworks. Our results revealed a fairly stable basic chromosome number (x = 8) in subg. Cyathophora, and we therefore revised x = 8 as the basic chromosome number of A. spicatum, rather than x = 10 mostly due to misidentifications concerning A. fasciculatum. The karyotype asymmetry analyses for subg. Cyathophora indicated that, the karyotype evolution for diploid species showing a high karyotype similarity was mainly due to intrachromosomal changes, while the interchromosomal changes were linked to the evolution of tetraploid populations. However, indeed different dysploid basic chromosome numbers (x = 7, 10, 11) and greatly different karyotype patterns occurred in sect. Bromatorrhiza, corresponding to the subsections revealed by molecular evidence. The combined evidence suggested that species with x = 11 compose a segmental allotriploid complex. It was also indicated that karyotype pattern of polyploids usually is closely related with their diploid progenitors.

show abstract

“…Allium hookeri (AH) belongs to a member of the Alliaceae family and is found in India, Greece, Sri Lanka, Myanmar (Burma), southern western China (Tibet, Yunnan, and Shchuan), Bhutan, and South Korea. It has been used by locals to treat coughs, colds, wounds, and burn (Sharma, Gohil, & Kaul, ). Our previous study reported that AH alleviated clinical symptoms of allergic rhinitis in an animal model (Kim et al, ).…”

Section: Introductionmentioning

confidence: 99%

Protective effect of linoleic acid against inflammatory reactions by mast cell via caspase‐1 cascade pathways

et al. 2019

View full text Add to dashboard Cite

Blockade of caspase‐1 was reported to be a new target for allergic inflammation treatment. Here, we present the effect of linoleic acid (LA), a constituent of Allium hookeri (AH), to alleviate mast cell‐mediated allergic inflammation. Pretreatment of LA and AH significantly reduced caspase‐1 activation without displaying host cell cytotoxicity in activated human mast cells. IC50 value of LA on caspase‐1 activity is 0.014 μM. LA and AH pretreatment effectively regulated increased levels of interleukin (IL)‐1β, IL‐6, IL‐8, thymic stromal lymphopoietin, and tumor necrosis factor on activated human mast cells. Moreover, LA and AH were effective against activations of nuclear factor‐κB and mitogen‐activated protein kinases in human mast cells. In summary, LA and AH alleviate allergic inflammatory reactions via blocking caspase‐1 cascade signaling pathway. These results provide evidence for the anti‐allergic inflammatory properties of LA and AH and corroborate its potential use for the treatment and prevention of allergic diseases. Practical applications Allium hookeri (AH) is used as traditional food to treat various diseases and contains an essential fatty acid, linoleic acid (LA). LA and AH alleviate mast cell‐mediated allergic inflammatory reactions via inhibiting inflammatory mediators. These results provide evidence for the anti‐allergic inflammatory properties of LA and AH and corroborate its potential use for the treatment and prevention of allergic diseases.

show abstract

Cytological status of Allium hookeri Thwaites (2n = 22)

Cited by 29 publications

References 17 publications

Reproductive efficiency of two Luffa species - Factors affecting low reproductive rate in meiotically stable Luffa acutangula (L.) Roxb.

Reproductive efficiency of two Luffa species - Factors affecting low reproductive rate in meiotically stable Luffa acutangula (L.) Roxb.

Cytotaxonomy of Allium (Amaryllidaceae) subgenera Cyathophora and Amerallium sect. Bromatorrhiza

Protective effect of linoleic acid against inflammatory reactions by mast cell via caspase‐1 cascade pathways

Contact Info

Product

Resources

About