Angiosperms have both female and male gametophytes, which produce haploid gametes. The gametophyte is the sexual phase of the multicellular haploid plants with alternation of generations. The life cycle of most plants involves alternation of generations, or metagenesis, comprising two stages: a ...
Pine branches with female seed cones and male pollen cones,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工商
Young pine male cones in sunny springtime day with green needles 4K Many pine male cones in sunny springtime day with lush green needles 4K Pine Flower Surrounded By Needles. Blooming Evergreen Pine Tree With Male Pine Cones. Close up. ...
Scots pine branches with yellow pollen-producing male cones,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工
Cones or male flowers of the European red pine (Pinus sylvestris),站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银
Last year's pine cones and male strobili,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工商银行等数万家企业级
pinus resinosa. young Pineoung tender cones on a pine branch in the forest. Pinus resinosa Male Pollen Cone Pinecone in Early Spring. natural background medicinal fragrant needles.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图
pinus resinosa. young tender cones on a pine branch in the forest. Closeup of Red Pine Pinus resinosa Male Pollen Cone Pinecone in Early Spring. natural background medicinal fragrant needles,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含
Plant Materials Pinus bungeana is a monoecious conifer species, which produces male and female cones during March–May. Three male and three female conelets (female conelet 1, female conelet 2, female conelet 3, male conelet 1, male conelet 2, and male conelet 3) were separately ...
The molecular regulation of induction and development of reproductive organs is well established in angiosperms, while it is slowly accumulating in gymnosperms. Here, we conducted comparative transcriptomic profiles at different stages of male and female cone development inPinus halepensis. Our aim was ...