2018
DOI: 10.1007/s00425-018-3055-y
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Progressive programmed cell death inwards across the anther wall in male sterile flowers of the gynodioecious plant Plantago lanceolata

Abstract: Main conclusion A cell death signal is perceived and responded to by epidermal cells first before being conveyed inwards across the anther wall in male sterile Plantago lanceolata flowers.In gynodioecious plants, floral phenotype is determined by an interplay between cytoplasmic male sterility (CMS)-promoting factors and fertility-restoring genes segregating in the nuclear background. Plantago lanceolata exhibits at least four different sterilizing cytoplasms. MS1, a "brown-anther" male sterile phenotype, segr… Show more

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Cited by 4 publications
(3 citation statements)
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“…As the tapetum acts as a supplier of sporopollenin precursors for pollen exine development, the normal development and programmed cell death (PCD) of the tapetum are essential for pollen development, including pollen exine formation [ 5 ]. Either abnormal development or advanced/delayed PCD of a tapetum leads to impaired pollen wall development and reduced male fertility [ 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ]. A genetic transcriptional pathway has been demonstrated to function in regulating the development and PCD of a tapetum, from the upstream to the downstream, including the following transcription factor (TF) genes: dysfunctional tapetum 1 ( DYT1 ), bHLH010/bHLH089/bHLH091 , defective in tapetal development and function 1 ( TDF1 )/ MYB35 , and aborted microspores ( AMS ), MYB103 [ 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 ].…”
Section: Introductionmentioning
confidence: 99%
“…As the tapetum acts as a supplier of sporopollenin precursors for pollen exine development, the normal development and programmed cell death (PCD) of the tapetum are essential for pollen development, including pollen exine formation [ 5 ]. Either abnormal development or advanced/delayed PCD of a tapetum leads to impaired pollen wall development and reduced male fertility [ 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ]. A genetic transcriptional pathway has been demonstrated to function in regulating the development and PCD of a tapetum, from the upstream to the downstream, including the following transcription factor (TF) genes: dysfunctional tapetum 1 ( DYT1 ), bHLH010/bHLH089/bHLH091 , defective in tapetal development and function 1 ( TDF1 )/ MYB35 , and aborted microspores ( AMS ), MYB103 [ 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 ].…”
Section: Introductionmentioning
confidence: 99%
“…Pollen cell wall development is a crucial part of pollen production, and an abnormal pollen cell wall may be associated with male sterility in plants ( Li et al, 2006 ; Ma et al, 2007 ; Wijeratne et al, 2007 ; Wei et al, 2013a ; Hu et al, 2016 ; Xu et al, 2017 ; Zhou et al, 2017 ; Chen et al, 2018 , 2019 ; Hamid et al, 2019 ; Nugent et al, 2019 ; Sutthinon et al, 2019 ; Mondol et al, 2020 ). Some genes controlling pollen development have been identified and cloned ( Shi et al, 2011 ), including DMD1 ( Ren et al, 2020 ), DPW2 ( Xu et al, 2017 ), and DPW3 ( Mondol et al, 2020 ).…”
Section: Discussionmentioning
confidence: 99%
“…PCD is an ordered process of the selective removal of cells, and it is essential for the growth and development of multicellular organisms, as well as for proper environmental responses [38]. Aberrant PCD is also the abortion mechanism of much CMS, mainly manifested by premature and delayed PCD of the tapetum in microsporogenesis or uninucleate stages [22,[39][40][41].…”
Section: Introductionmentioning
confidence: 99%