Pollen grain is related to embryo sac as View Solution When pollen tube enters through micropyle, it is called: View Solution The entry of pollen tube into the ovule through micropyle is called View Solution In the diagram given below, show the path of a pollen tube from the pollen on th...
Class 12BIOLOGYQUESTION BANK Similar Questions Draw a labelled diagram of the sectional view of a mature pollen grain of angiosperms. Explain the function of generative cell and vegetative cell View Solution Draw a labeled diagram of a section through ovary. View Solution Draw a labelled diagram...
q2nP_FRW_12 and q2nP_IVP_12, it is insufficient to account for the uniparental segregation observed for q2nP_CE_12. Fig. 4 Functional and mutant StJR1 and StJR1alleles (a) diagram of the exon intron structure of StJR1. The position of the deletion identified in StJR1.t1 is ...
Pollen tube length longer than pollen grain diameter is determined as normal germination. Aniline blue staining of pollen tubes One female flower was pollinated with two male flowers. Pollinated excised pistils (with superior ovaries) were placed in Petri dishes and wetly cultured in a growth ...
Pollen of common ragweed (Ambrosia artemisiifolia) is a main cause of allergic diseases in Northern America. The weed has recently become spreading as a neophyte in Europe, while climate change may also affect the growth of the plant and additionally may
The mature pollen grain of maize (Zea mays) consists of three cells: two small sperm cells and a larger vegetative cell. After the pollen grain arrives at the compatible stigmatic hairs of maize silk, it hydrates. The pollen tube then starts to elongate in the styl...
31.LDMARis a crucial lncRNA from rice that contributes to pollen grain development when its transcript level exceeds a threshold value32. Above all, lncRNAs have been identified and implicated in plant growth and stress responses. However, research on lncRNAs in the pollen of sweet cherry is ...
Pollen of common ragweed (Ambrosia artemisiifolia) is a main cause of allergic diseases in Northern America. The weed has recently become spreading as a neophyte in Europe, while climate change may also affect the growth of the plant and additionally may
Td: tetrad; T: tapetum; MMC: microspore mother cell; dTd, death tetrad; MNM: mononuclear microspore; dTM: death tapetum and microspore; PG: pollen grain. Scale bars = 50 μm. 2.2. Overview of Quantitative Proteomics Analysis In total, 502,216 spectra were generated using label-free ...
Breeding with dominant genic male-sterility genes to boost crop grain yield in the post-heterosis utilization era. Mol. Plant 2021, 14, 531–534. [Google Scholar] [CrossRef] Wan, X.; Wu, S.; Li, Z.; An, X.; Tian, Y. Lipid metabolism: Critical roles in male fertility and other ...