Lou, B. H.; Zhao, X. L.; Song, Y. Q.; Bai, X. J.; Deng, C. L.; Chen, G. P.
November 2012
Journal of Plant Pathology;Nov2012, Vol. 94 Issue 3, p703
Academic Journal
"Candidatus Liberibacter asiaticus" (Las), one of the three known bacterial species associated with citrus Huanglongbing (HLB), is unevenly distributed in bark tissue, leaf midrib, roots, and different floral parts of infected citrus trees. In this study, 10 petal, 12 stamen, 12 pistil, 3 pollen, 20 seed hull, 20 seed coat and 20 endosperm samples were collected from HLB-infected Shatianyou pummelo trees [= Citrus maxima (Burm.) Merr. cv. Shatian Yu] in China and analyzed for the presence of Las. The bacterium was detected by conventional PCR using the Las-specific primer pair OI1/OI2c. Amplification products of the expected size (ca. 1100 bp) were obtained from 9 petal (90%), 11 stamen (91.7%), 12 pistil (100%), 2 pollen (66.7%), 18 seed coat (90%), 15 endosperm (75%) samples, but not from any of the seed hull samples. The sequence of a representative amplicon matched that of Las. To our knowledge, this is the first report of the presence of Las in pollen, seed coat and endosperm of pummelo in China.


Related Articles

  • Maternal control of seed size in plants. Na Li; Yunhai Li // Journal of Experimental Botany;Feb2015 Special Issue, Vol. 66 Issue 4, p1087 

    Seed size is a key determinant of evolutionary fitness, and is also one of the most important components of seed yield. In angiosperms, seed development begins with double fertilization, which leads to the formation of a diploid embryo and a triploid endosperm. The outermost layer of the seed is...

  • Tissue-Specific Distribution of Secondary Metabolites in Rapeseed (Brassica napus L.). Jingjing Fang; Reichelt, Michael; Hidalgo, William; Agnolet, Sara; Schneider, Bernd // PLoS ONE;Oct2012, Vol. 7 Issue 10, Special section p1 

    Four different parts, hypocotyl and radicle (HR), inner cotyledon (IC), outer cotyledon (OC), seed coat and endosperm (SE), were sampled from mature rapeseed (Brassica napus L.) by laser microdissection. Subsequently, major secondary metabolites, glucosinolates and sinapine, as well as three...

  • Activation of Arabidopsis Seed Hair Development by Cotton Fiber-Related Genes. Guan, Xueying; Lee, Jinsuk J.; Pang, Mingxiong; Shi, Xiaoli; Stelly, David M.; Chen, Z. Jeffrey // PLoS ONE;2011, Vol. 6 Issue 7, p1 

    Each cotton fiber is a single-celled seed trichome or hair, and over 20,000 fibers may develop semi-synchronously on each seed. The molecular basis for seed hair development is unknown but is likely to share many similarities with leaf trichome development in Arabidopsis. Leaf trichome...

  • Seven years of negative detection results confirm that Xylella fastidiosa, the causal agent of CVC, is not transmitted from seeds to seedlings. Coletta-Filho, Helvécio; Carvalho, Sérgio; Silva, Luis; Machado, Marcos // European Journal of Plant Pathology;Jul2014, Vol. 139 Issue 3, p593 

    Knowledge about the mechanism of transmission of systemic pathogens of citrus species is highly important for the safe movement of citrus germplasm, management of citrus mother trees, and also production of young plants. Among systemic pathogens of citrus, Xylella fastidiosa the causal agent of...

  • Big Pulp. Karp, David // Gourmet;Jan2001, Vol. 61 Issue 1, p34 

    Reports on the Big Wong pummelo, a giant, pear-shaped variety of the ancestor to the grapefruit, particularly popular around Chinese New Year and among Southern Californians. Market in California that sells the fruit; History of cocktail grapefruits in California.

  • Grapefruit: the 'Forbidden' Fruit. Arthur, Dave; Reeve, Daemmon // Perfumer & Flavorist;Jan/Feb2004, Vol. 29 Issue 1, p26 

    The most recent addition to the citrus family, the grapefruit was relatively unknown to both Eastern and Western civilizations until its discovery in Barbados in 1750. Since then, it has spread to tropical and sub-tropical regions throughout the Western Hemisphere, and is renowned for its...

  • Identification of Aroma-Active Compounds in Malaysian Pomelo (Citrus grandis (L.) Osbeck) Peel by Gas Chromatography-Olfactometry. Cheong, M.-W.; Liu, S.-Q.; Yeo, J.; Chionh, H.-K.; Pramudya, K.; Curran, P.; Yu, B. // Journal of Essential Oil Research;Nov/Dec2011, Vol. 23 Issue 6, p34 

    Malaysian pink and white pomelo (Citrus grandis (L.) Osbeck) peels were extracted with dichloromethane (DCM). Using GC-FID/MS and gas chromatography-olfactometry (GC-O), 50 and 47 aroma-active compounds were identified in pink and white pomelo peel extracts, respectively. The potency of each...

  • Asian Pathogen Threatens Florida's Citrus Crops. Netting, Jessa Forte // Discover;Jan2006, Vol. 27 Issue 1, p69 

    The article reports that pummelo trees in Florida have been infected by a deadly microbe. Huanglongbing, which means yellow dragon disease, has already devastated citrus groves in Asia, Africa, and South America and now threatens Florida's orange and grapefruit crops. Huanglongbing is one of...

  • shaddock. Morton, Mark // Cupboard Love;1997, p275 

    An encyclopedia entry for "shaddock" is presented. The shaddock is the ancestor of the grapefruit, which was developed from the shaddock in the early 19th century in the West Indies. Some of the other names of shaddock, before settling on its current name are Adam's apple and pompelmoose. It...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics