Dataset Information

Wheat, pollen, MALDI-TOF/TOF-MSMS

ABSTRACT: In order to better understand chemical hybridizing agent (CHA) SQ-1-induced pollen abortion in wheat better, comparative proteomic analyses were conducted. A total of 61 proteins showed statistically significant differences in abundance, among which, 18 proteins were highly abundant and 43 proteins were less abundant in CHA-SQ-1 treated plants. Here, 60 proteins were successfully identified using MALDI-TOF/TOF mass spectrometry. These proteins were found to be involved in pollen maturation. Interactions between these proteins were predicted using bioinformatics analysis. Gene ontology and pathway analyses revealed that the majority of the identified proteins were involved in diverse biological processes. These results provide information for the molecular events (carbohydrate metabolism and energy metabolism) underlying CHA-SQ-1-induced pollen abortion and may serve as an additional guide for practical hybrid breeding.

INSTRUMENT(S): 5800 TOF/TOF

ORGANISM(S): Triticum Aestivum (wheat)

TISSUE(S): Pollen

SUBMITTER: Shuping Wang

LAB HEAD: Shuping Wang

PROVIDER: PXD012519 | Pride | 2019-04-09

REPOSITORIES: pride

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Dataset's files

Source:

			Action	DRS
	MS_MSraw.zip	Other
	MS_MSsearch.zip	Other
	RESULT.zip	Other

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Publications

Cytological and Proteomic Analysis of Wheat Pollen Abortion Induced by Chemical Hybridization Agent.

Wang Shuping S Zhang Yingxin Y Fang Zhengwu Z Zhang Yamin Y Song Qilu Q Hou Zehao Z Sun Kunkun K Song Yulong Y Li Ying Y Ma Dongfang D Liu Yike Y Zhu Zhanwang Z Niu Na N Wang Junwei J Ma Shoucai S Zhang Gaisheng G

International journal of molecular sciences 20190401 7

In plants, pollen grain transfers the haploid male genetic material from anther to stigma, both between flowers (cross-pollination) and within the same flower (self-pollination). In order to better understand chemical hybridizing agent (CHA) SQ-1-induced pollen abortion in wheat, comparative cytological and proteomic analyses were conducted. Results indicated that pollen grains underwent serious structural injury, including cell division abnormality, nutritional deficiencies, pollen wall defect ...[more]

PMID: 30939734

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Project description:Purpose: Delonix regia or Gulmohor commonly grows here and there in Indian villages as well as it is used for megacity beautification and environmental management due to its evergreen nature and vibrant flower colour. However, an increasing incidence of seasonal pollinosis was observed among the inhabitants living in close vicinity to this tree suggesting a possible link between the airborne pollen load and the concomitant respiratory hazards. This prompted us to investigate the allergens in the pollen of this dominant avenue tree. Methodology: Allergenicity of D. regia pollen grains was first checked by Skin Prick Test (SPT) and further confirmed by in vitro tests, such as, ELISA, Dot Blot and histamine release assay. The total proteome profiling was done by 2D PAGE and it was confronted with the pooled sera of 10 patients. The IgE reactive proteins were identified by MALDI TOF/TOF in Autoflex speed (Bruker,Germany). The raw spectra were searched against NCBInr database using MASCOT search engine. Result: Delonix regia, pollen grains have been found in considerable amount in the air during its flowering season (May to July). Approximately 31% of atopic individuals were found allergic to D. regia, pollen with elevated level of specific IgE and histamine in the serum. Total 8 IgE reactive proteins have been identified by homology driven proteomics. These proteins are ATP synthase beta subunit (spot no 5), Actin (spot no 6), Hypothetical actin like protein (spot no 7), Recombinant S-adenosylmethionine synthase 2 (spot no 9), UDP-arabinopyranose mutase (spot no 13), Luminal-binding 5 (spot no 2), ELF3-like protein (spot no 8) and hypothetical protein OsJ_04810 (spot no 11). Among these eight identified allergenic proteins, five were previously reported as allergen from different sources whereas the rest three have been reported for the first time as novel allergens. Conclusion: Novelty of this study was to identify 8 allergens from D.regia for the first time using immune-biochemical and proteomic techniques. Further studies will open up new avenues in component resolved diagnosis of pollen allergy.