冥想后
发表于 2025-3-26 23:25:48
Vorbereitende Jahresabschlussbuchungen,containing smaller and smaller ones): inside the gynoecium are found ovules; inside each ovule one discovers a megasporangium-nucellus, and within the latter a female prothallium”. Mangenot suggests that this process may be further promoted if the carpels themselves are completely protected.”
indicate
发表于 2025-3-27 05:06:57
Vorbereitende Jahresabschlussbuchungen,92; Derksen et al. 1995a; Derksen 1996; Taylor and Hepler et al. 1997; Li et al. 1997) and for Gymnosperms . (de Win et al. 1996) and . (Lazzaro 1996). A number of properties have been thought to be of relevance for tip growth but comparison between species shows dissimilarities as well as similarit
易受刺激
发表于 2025-3-27 07:56:29
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MOAN
发表于 2025-3-27 11:46:04
Mechanisms of Angiosperm anther dehiscence, a historical review,greed with the name exothecium for the epidermis, but proposed mesothecium for the hypodermal layer (Purkinjes endothecium) and endothecium for the layer that nowadays is called the tapetum. Chatin (1870a;b) discussed this terminology, but finally followed Purkinjes terms. Goebel (1902) and Staedtle
Cuisine
发表于 2025-3-27 15:24:28
Anther carbohydrates during in vivo and in vitro pollen development,evelopement (Pacini 1996; Saini 1997). These sugars are crucial nutrients required for the achievement of functional pollen grains (Pacini 1994). Further, they influence the initiation of microspore embryogenesis (Touraev et al. 1997), as well as the success of anther and microspore culture (Jähne a
GNAW
发表于 2025-3-27 20:49:14
,Possible mechanisms of the “447” Cytoplasmic Male Sterility in ,, an unconventional CMS associated that it does not correlate with alterations of the mitochondrial DNA pattern, but rather with the presence of a linear double-stranded RNA of high molecular weight and of unknown origin (Grill and Garger 1981). This dsRNA is contained together with its specific replicase/transcriptase in membraneous
Indigence
发表于 2025-3-27 23:50:41
Characterization of P26, a putative PLIM-1 partner in the pollen grain of ,,o the animal protein CRP shown to interact with the actin cytoskeleton (Beckerle 1997), we hypothesize that P26 functions in connection with cytoskeletal structures in the pollen grain. The present work describes the isolation of partial p26 cDNAs as well as a preliminary biochemical characterizatio
宠爱
发表于 2025-3-28 05:59:14
Pollen coat signals and ovule penetration in , (Mill.) H. Duval,containing smaller and smaller ones): inside the gynoecium are found ovules; inside each ovule one discovers a megasporangium-nucellus, and within the latter a female prothallium”. Mangenot suggests that this process may be further promoted if the carpels themselves are completely protected.”
STANT
发表于 2025-3-28 06:25:48
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脱毛
发表于 2025-3-28 13:15:22
Programmed cell death during androgenesis in , L.,lution containing mannitol is the best condition for plant production (Hoekstra et al. 1996). Davies and Jones (1991) suggest that, in response to certain stress treatments like osmotic pressure and cold, ABA is produced. Pretreatment of tobacco anthers by mannitol caused an increase in endogenous A