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1 ent as stored mRNA and stored protein in the microspore.
2  the highest levels in developing ovules and microspores.
3 the tetrad microspores had become individual microspores.
4 type-specific pectin degradation to separate microspores.
5 ce of storage oil bodies inside the maturing microspores.
6 te with the cell wall of aberrant developing microspores.
7 d, vacuolated tapetum surrounding collapsing microspores.
8 ating protein transport in tapetal cells and microspores.
9 nd is precisely regulated by the tapetum and microspores.
10 , with corresponding loss of fluorescence on microspores.
11 onads that contain binuclear and polynuclear microspores.
12 ll be transferred to the surface of adjacent microspores.
13 ical system of mesopores interconnected with microspores.
14  resulting in the formation of multinucleate microspores.
15 rived siRNAs were depleted in Capsella nrpd1 microspores.
16 lted in polyads containing from one to eight microspores.
17 mutants is attributed to the degeneration of microspores.
18 len, but were already present in unicellular microspores.
19 e tapetal cell layer, which accounts for the microspore abortion and male sterility.
20                                  The ABORTED MICROSPORES (AMS) transcription factor is a master regul
21 er, it does not appear to be anchored to the microspore and forms large aggregates on the developing
22 ment, we identified genes involved in pollen microspore and tapetum development that were specificall
23 and forms large aggregates on the developing microspore and the locule walls.
24           Some genes are highly expressed in microspores and bicellular pollen (COPT3, STP2, OPT9), w
25 uorescent protein accumulated in unicellular microspores and bicellular pollen but decreased in trice
26 porter gene and selectable marker into these microspores and hence, after in vitro maturation and in
27 he highest expression in meiocytes, tetrads, microspores and mature pollen.
28 isms by which sporopollenin is anchored onto microspores and polymerized in specific patterns are unk
29 methylation is lost from retrotransposons in microspores and sperm cells and restored by de novo DNA
30 t in the surface fractions of the developing microspores and the mature pollen, although fragmented o
31 e cell, and their precursor, the postmeiotic microspore, and found that unlike in mammals the plant g
32  primary cell wall of meiocytes, tetrads and microspores, and the expression of this gene is essentia
33             In general, pollen meiocytes and microspores are characterized by increased susceptibilit
34                                              Microspores at late uninucleate/early binucleate stages
35 nt cell wall matrix formed on the surface of microspores at the late tetrad stage, is hypothesized to
36 tum of 3-5 mm B. napus buds, which contained microspores at the late-vacuolate and bicellular stages
37  Enzymatic removal of callose from wild-type microspores at the tetrad stage did not release the micr
38 properties of the primexine component of the microspore cell wall.
39                                          Dry microspores contain large quantities of stored protein a
40                     In drp3b and elm1, young microspores contained an abnormal number of nuclei, and
41                       Furthermore, wild-type microspores contained primexine-localized epitopes indic
42                        Although most myb81-1 microspores degenerate without division, a small fractio
43 chemical and genetic tools on Brassica napus microspore-derived embryos and Arabidopsis thaliana zygo
44 icate that RGP1 and RGP2 are required during microspore development and pollen mitosis, either affect
45                                   Pollen and microspore development are essential steps in the life c
46                                              Microspore development in eda9.1eda9.1 Pro-35S:EDA9 was
47                                              Microspore development in psp1.1/psp1.1 Pro35S:PSP1 arre
48 of PSP1 in the tapetum at critical stages of microspore development suggests that PSP1 activity in th
49 l staining and thin sectioning revealed that microspore development was compromised, likely due to a
50 f substances, analogous to those involved in microspore development, were left undisturbed while wate
51 tant role in partitioning of amino acids for microspore development.
52 degrading the pollen mother cell wall during microspore development.
53 egeneration of the tapetal cell layer during microspore development.
54 ted in the late uninucleate stage of tobacco microspore development.
55                      Consequently, defective microspores did not form a continuous cell plate, and tw
56                         We find that ABORTED MICROSPORES directly regulates the expression of TEK and
57 lly undergo nondisjunction during the second microspore division (generative cell division).
58 me nondisjunction can occur during the first microspore division.
59                                Separation of microspores does not occur in tetraspore (tes) mutants o
60  cell at the onset of meiosis and around the microspores during the tetrad stage.
61 c wall around the pollen mother cell and the microspores during the tetrad stage.
62 occurs in the microsporocyte to produce four microspores, each of which develops into a pollen grain.
63 he products of male meiosis into a tetrad of microspores, each of which develops into a pollen grain.
64 genesis in dandelion (Taraxacum officinale), microspore embryogenesis in oilseed rape (Brassica napus
65 e investigated this using the Brassica napus microspore embryogenesis system, where the male gametoph
66                                              Microspore embryos are formed via two pathways: a zygoti
67 nd endosperm) and in apomictic, somatic, and microspore embryos.
68  Pol IV is functionally required in Capsella microspores emphasizes the relevance of investigating di
69 key role in the developmental progression of microspores, enabling formation of the two male cell lin
70               In the ask1-1 mutant, abnormal microspores exhibit a range of sizes.
71        In approximately half of the dividing microspores exhibiting aberrant MT organization, spindle
72 sors are secreted from the tapetum to become microspore exine constituents; this pathway explains the
73 psis thaliana produce tetrad pollen in which microspores fail to separate during pollen development.
74                           Typically, myb81-1 microspores fail to undergo pollen mitosis I (PMI) and a
75  the stress during the stages of meiosis and microspore formation but had no effect on more advanced
76 terizing gene expression specifically during microspore formation.
77 Here we develop a method to isolate the four microspores from a single tetrad in maize for the purpos
78 nd vegetative cells, as well as in wild-type microspores from which both pollen cell types originate,
79 n the tapetum of the anther after the tetrad microspores had become individual microspores.
80 r the specific expression of the gene in the microspores in the florets.
81 ly of exine components from tapetal cells to microspores in the intact anthers of Arabidopsis thalian
82 se removal is not sufficient to disperse the microspores in wild-type.
83 pid process that is activated by placing dry microspores into water.
84 pid process that is activated by placing dry microspores into water.
85 use the amount of callose deposition between microspores is correlated with tetrad pollen formation i
86                        While tapetum- and/or microspore-localized proteins are required for primexine
87 nt embryos can develop from somatic cells or microspores, maternal contributions are not considered t
88                                       During microspore maturation, adl1C-1 pollen grains display def
89 h interruption of tapetum development before microspore meiosis.
90 cell and is produced prior to any asymmetric microspore mitosis.
91 iggering microRNAs (miRNAs) are localized in microspore mother cells and tapetal cells of meiotic and
92 meiotic cytokinesis in tes mutants, all four microspore nuclei remain within the same cytoplasm, with
93                                     When the microspore nucleus contains only one B chromosome, two k
94 usion of nuclei in binuclear and polynuclear microspores occurs spontaneously before pollen mitosis I
95  of the GUS reporter gene in the tapetum and microspores of Arabidopsis anthers identical to the AtMY
96                                  In dividing microspores of the double mutant, microtubules often bec
97 ation of the callose wall that separates the microspores of the tetrad, and also play a gametophytic
98 s defective, producing an abnormal number of microspores of variable sizes.
99                 Apparently, the gametophytic microspore oil-body oleosins share common epitopes at th
100                No expression was detected in microspores or pollen.
101                             In addition, the microspore plasma membrane (PM) protein RUPTURED POLLEN
102 ctive pollen wall formation such as abnormal microspore plasma membrane undulation and defective prim
103  discussed in relation to proposed models of microspore polarity and cell fate determination.
104  this gene was only expressed in embryogenic microspores, pollen embryoids, and developing zygotic em
105 t are differentially regulated in developing microspores/ pollen grains (gametophyte) and tapetal cel
106                   In contrast, in developing microspores/pollen grains, maximal expression of the lip
107 ion in cell division was analyzed in haploid microspores produced by the heterozygote.
108             The anther tapetum helps control microspore release and essential components for pollen w
109     Degeneration of pollen occurs soon after microspore release from the tetrads, at which time the t
110 ts, pollen development is aborted soon after microspore release, regardless of environmental conditio
111 all were no longer detectable at the time of microspore release.
112 th expression in the tapetum at the stage of microspore release.
113 otic division of an undetermined unicellular microspore segregates these two cell lineages.
114 pressed in the tapetum during the phase when microspores separate from their meiotic siblings.
115 TET loci in Arabidopsis result in failure of microspore separation during pollen development due to a
116        Mutations in a new locus required for microspore separation, QRT3, were isolated, and the corr
117                  Imaging of developing irx9l microspores showed that the earliest detectable defect w
118                     The MYB81 promoter shows microspore-specific activity and a MYB81-RFP fusion prot
119 roductive development, reflecting the strict microspore-specific control of MYB81.
120 ed proteins in the tapetal cells at the free microspore stage, contributing to pollen wall developmen
121 tmeiotic arrest of pollen development at the microspore stage.
122 secreted from tapetal cells during the early microspore stage.
123 lls for synthesis of compounds important for microspore structure and in transfer of organic nitrogen
124 er cell layers surrounding the meiocytes and microspores, suggesting that appropriate GA signaling in
125 ores at the tetrad stage did not release the microspores, suggesting that callose removal is not suff
126                         It then moved to the microspore surface and remained as a component of exine.
127 hich plays a role in exine patterning on the microspore surface.
128 nases that hydrolyze the callose wall of the microspore tetrad.
129 plast microtubules during cytokinesis in the microspore that is essential for cell plate formation.
130 arrested during transition from uni-nucleate microspore to bicellular pollen.
131  the EcMt gene transcript and the ability of microspores to form embryoids.
132 tisense RNA approach that it is required for microspores to progress from the unicellular to bicellul
133 on in all transgenic plants regenerated from microspores transfected with the full transferred DNA/pr
134                                      Haploid microspores undergo polar nuclear migration and asymmetr
135 oropollenin adhesion and patterning early in microspore wall development.
136                     Arrest of Capsella nrpd1 microspores was accompanied by the deregulation of genes
137 aging of GFP-tagged microtubules in dividing microspores we show that TIO is required for expansion o
138 rescent components of developing tapetum and microspores were imaged in intact, live anthers using tw
139                                              Microspores were released into the anther locule at the
140 dified form, then relocate to the developing microspores where they eventually constitute some of the
141                    Compared with the control microspores, which formed bipolar spindles at the cell p
142  expressed in both maturing seeds and floral microspores, which will become pollen.
143 combination protein A delivered to triticale microspores with the help of a Tat2 cell-penetrating pep
144 ad previously been shown to produce abnormal microspores with variable DNA content, was also cytologi

 
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