Maize pollen germination
WebOct 3, 2016 · We conclude that the overall genetic composition of maize, in this and similar agricultural contexts, will be strongly influenced both by self-organised ecological factors … WebMaize pollen tubes can penetrate through over 30 cm of maize silk (stigmata) and reach ovules within 24 h, indicating growth speeds in excess of 1 cm/h [ 23 ]. By contrast, dicot pollen can take over 1 h to hydrate, and arabidopsis pollen tubes grow at …
Maize pollen germination
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WebWhen pollen arrives on the surface of a compatible stigma it undergoes a complex series of regulated cytoplasmic rearrangements leading to the emergence of a cylindrical structure known as pollen tube, with the main purpose to carry and deliver sperm cells to the embryo sac for the double fertilization. WebSep 3, 2012 · This medium is also suitable to germinate pollen of other monocot species, such as Pennisetum americanum and Tradescantia species, and dicot species, such as …
WebApr 12, 2024 · We selected different heat-sensitive maize varieties: heat-tolerant variety Zhengdan 958 (ZD958) and heat-sensitive variety Xianyu335 (XY335) to study the stress effects of high temperature on the development of tassel in the key stage of its differentiation (the 12-leaf stage, V12). ... activity and germination rate of pollen. WebApr 13, 2024 · Search, browse and select cities on our interactive allergy map to see allergy levels and pollen count forecasts. Advertisement. Introducing Respiray Wear A+, the …
WebAtGRXS17-expressing maize pollen is less sensitive to heat stress than WT pollen. (a) Representative image of pollen grains and germination tubes from non-stressed plants of all genotypes. Pollen was collected from plants before heat treatment was initialized. Red arrows indicate a pollen germination tube and the corresponding pollen grain. WebMar 12, 2024 · Silk is a necessary part of the female reproductive organ in maize. Each maize silk is a specialized long trichome anchored to each ovule, which is functionally equivalent to the stigma and style in typical flowering plants [1,2,3].Silk is responsible for catching pollen grains and supporting pollen hydration and germination.
WebPollen from fertile plants of corn (Zea mays L.), with normal and restored male-sterile cytoplasm (cms), from various sources was assayed for in vitro germination on media …
WebMay 29, 2024 · Although CPK genes have been identified in maize, and some have been functionally characterized, the molecular function of ZmCPKs associated with pollen tube development remains less well studied. Here, we report that a pollen-specific CPK, ZmCPK32, is involved in the regulation of pollen germination and tube extension. dhmis tony fanartWebApr 11, 2024 · HIGHLIGHTS. who: Xin Qi from the FacultyAgricultural University have published the research work: Effects of histone methylation modification on low temperature seed germination and growth of maize, in the Journal: Scientific Reports Scientific Reports what: In this study, compared with WT, the plant height of AS was significantly increased … dhmis tony the clockWebThe complete loss of germination occurred during a 24 h period and was very abrupt. At 20° C, a similar but less pronounced pattern was observed. However, after 24 h, aggregates of 50-1 000 pollen grains developed during storage in both W and K. Storage of W at 35° C slightly decreased the germination percentage at 3 h and eliminated it at 6 h. dhmis tony x colinWebIn the present work, maize pollen was used as an experimental model to test the biological activity of emmer wheatgrass extracts obtained from grains sprouted with distilled water … cimb clicks singapore digital tokenWebMar 24, 2016 · It is believed that the time effect on pollen viability is directly related to the variation in temperature and humidity, such as that observed for the maize crop, in which … cimb clicks savings accountWebEven in the germination of maize pollen, the effects were different: salicylic and 3-HO benzoic acids reduced the germination of maize pollen grains less markedly than coumaric and ferulic acids. These results, obtained in vitro and with single pure PAs, only suggest that PAs in unconjugated form could be among the compounds in wheatgrass ... cimb coffee beanTo reach the two female reproductive cells, sperm cells in angiosperms have to … To study the role of ZmEAL1 during embryo sac maturation and cell differentiation, … The last phase of pollen tube (PT) growth and guidance is controlled by the female … A recessive mutation of the maize gene Ameiotic causes the replacement of … The sex organs of flowering plants are contained within the flower. A typical … This point is particularly interesting because the isoforms involved in … In vitro germination of maize pollen grains. Grains were germinated for 3 h at 28 °C … Loci implicated in the mitosis to meiosis switch in plants have been identified in … dhmis training certificate