Developmental Events Associated with the Critical Stage for Sex Determination in Wild-Rice Florets [0.03%]
与野外稻花性别决定关键阶段相关的发育事件
SS Han,Q Liu
SS Han
The developmental events of florets and a critical stage for sex determination in two wild-rice populations (Zizania palustris cv. Franklin and Zizania palustris cv. K-2Pi) have been identified. Formation of bisexual florets precedes the de...
Initiation of the Vascular System and the Transition to Flowering in Early Tassels of Zea mays Land Race Chapalote (Poaceae) [0.03%]
玉米(Poaceae).chapter土地种族早穗血管系统启动和开花过渡
TD Pizzolato,MD Sundberg
TD Pizzolato
Serial transections of young tassels of (Zea mays land race) chapalote revealed relationships between the vascular system in its procambial state and the lateral primordia along the axis. A lateral tassel primordium usually consists of an i...
Localization of Cell Wall Polysaccharides during Kiwifruit (Actinidia deliciosa) Ripening [0.03%]
kiwi果(.Actinidia deliciosa.)成熟过程中细胞壁多糖的定位
P Sutherland,I Hallett I,R Redgwell et al.
P Sutherland et al.
The localization of pectin, cellulose, xyloglucan, and callose was compared in kiwifruit (Actinidia deliciosa [A. Chev.] C. F. Liang and A. R. Ferguson var. deliciosa "Hayward") at harvest, at the end of the first phase of softening, and wh...
Gravitaxis in Chlamydomonas reinhardtii: characterization using video microscopy and computer analysis [0.03%]
用视频显微镜和计算机图像处理技术研究绿藻的沉浮性
V Kam,N Moseyko,J Nemson et al.
V Kam et al.
We characterized the gravitactic behavior of Chlamydomonas reinhardtii, a unicellular green alga, using a computer-analysis system in order to study directional swimming. The effects of the calcium-channel inhibitors gadolinium and diltiaze...
Life History Differences between Rare and Common Flowering Plant Species of California and the British Isles [0.03%]
加利福尼亚州和不列颠群岛珍稀植物与普通植物的生活史差异
SG Hegde,NC Ellstrand
SG Hegde
Generalizations about rare and endangered species are important for the development of conservation management policy and for understanding of the nature of rarity. Therefore, we sought such generalizations by statistically comparing eight ...
Effect of Atmospheric CO2 Enrichment on Root Growth and Carbohydrate Allocation of Phaseolus spp [0.03%]
大气CO2浓度升高对菜豆属植物根系生长及碳水化合物分配的影响
KJ Salsman,DN Jordan,SD Smith et al.
KJ Salsman et al.
A glasshouse experiment was conducted with plants of Phaseolus grown in liquid culture. Root growth parameters (biomass, diameter, length, growth rate, zone of cell division), root rheological components (wall extensibility, water potential...
Effects of Elevated Atmospheric CO2 Concentration on Leaf Anatomy and Morphology in Panicum Species Representing Different Photosynthetic Modes [0.03%]
大气CO₂浓度升高对不同光合类型的 Panicum 属植物叶片解剖与形态特征的影响
C Tipping,DR Murray
C Tipping
Panicum tricanthum Nees, Panicum antidotale Retz., and Panicum decipiens Nees ex Trin. were selected to represent C3, C4, and C3/C4 intermediate perennial species of Panicum, respectively. Plants grown from seed with 900 ppm [CO2] under nat...
Elevated CO22 and Leaf Longevity in the C44 Grassland-Dominant Andropogon gerardii [0.03%]
CO2浓度升高对C4草丛中占主导地位的安达风草叶持久性的影响
AK Knapp,N Bargmann,LA Maragni et al.
AK Knapp et al.
In central U.S. grasslands, plant and ecosystem responses to elevated CO2 are most pronounced when water availability is limited. In a northeast Kansas grassland, responses to elevated CO2 in leaf area, number, development, and longevity we...
Permineralized Ferns from the Middle Eocene Princeton Chert. I. Makotopteris princetonensis Gen. et Sp. Nov. (Athyriaceae) [0.03%]
中始新世普林斯顿燧石中的木质fern化石I．新属种Makotopteris princetonensis（铁角蕨科）
RA Stockey,H Nishida,GW Rothwell
RA Stockey
The occurrence of numerous anatomically preserved specimens of an extinct filicalean fern in the middle Eocene Princeton chert from southern British Columbia, Canada, provides the basis for characterizing a new genus and species of the Athy...
Morphological and Ultrastructural Studies on in situ Spores of Oligocarpia (Gleicheniaceae) from the Lower Permian of Xinjiang, China [0.03%]
新疆下二叠纪轮叶蕨属(Podophyllum, Oligocarpia)孢子的形态和超微结构研究
Y Wang,G Guignard,G Barale
Y Wang
Though the fossil genus Oligocarpia is generally regarded to be of gleicheniaceous affinity, nothing is currently known about its spore ultrastructure. In this article, the micromorphology and ultrastructure of in situ spores of gleicheniac...