The snapdragon (Antirrhinum majus) centroradialis mutant (cen) is characterized by the development of a terminal flower, thereby replacing the normally open inflorescence by a closed inflorescence. In contrast to its Arabidopsis counterpart, terminal flower1, the cen-null mutant displays an almost constant number of lateral flowers below the terminal flower. Some partial revertants of an X-radi...

Populations of the rare annual forb Amsinckia grandiflora may be declining because of competitive suppression by exotic annual grasses, and may perform better in a matrix of native perennial bunchgrasses. We conducted a field competition experiment in which Amsinckia seedlings were transplanted into forty 0.64-m 2 experimental plots of exotic annual grassland or restored perennial grassland. Th...

This study evaluated the effect of salinity and soilless media on vegetative growth, phytochemicals, antioxidant capacity Trachyandra ciliata (wild cabbage) to develop its growth protocol explore potential as a natural source secondary metabolites. Treatments consisted different concentrations sodium chloride (NaCl), control- 0 mM, 100 200 400 while in vitro assays were used for phytochemical s...

Arabidopsis (Arabidopsis thaliana) SUPERMAN (SUP) plays a role in establishing a boundary between whorls 3 and 4 of flowers and in ovule development. We characterized a Petunia hybrida (petunia) homolog of SUP, designated PhSUP1, to compare with SUP. Genomic DNA of the PhSUP1 partially restored the stamen number and ovule development phenotypes of the Arabidopsis sup mutant. Two P. hybrida line...

Grass plants develop distinct inflorescences and spikelets that determine grain yields. However, the mechanisms underlying the specification of inflorescences and spikelets in grasses remain largely unknown. Here, we report the biological role of one SEPALLATA (SEP)-like gene, OsMADS34, in controlling the development of inflorescences and spikelets in rice (Oryza sativa). OsMADS34 encodes a MAD...

DESPITE frequent contact, inhalation of grasses is a rare occurrence in childhood. In a high proportion of the recorded cases the inhaled foreign material was an inhaled inflorescence (flower or seed head) which had tracked through the lung parenchyma, the pleura and the chest wall, to present as a swelling, either in relationship to a rib or in the subcutaneous tissue. Jackson (1952) reported ...

The abnormal inflorescence meristem1 (aim1) mutation affects inflorescence and floral development in Arabidopsis. After the transition to reproductive growth, the aim1 inflorescence meristem becomes disorganized, producing abnormal floral meristems and resulting in plants with severely reduced fertility. The derived amino acid sequence of AIM1 shows extensive similarity to the cucumber multifun...

DESPITE frequent contact, inhalation of grasses is a rare occurrence in childhood. In a high proportion of the recorded cases the inhaled foreign material was an inhaled inflorescence (flower or seed head) which had tracked through the lung parenchyma, the pleura and the chest wall, to present as a swelling, either in relationship to a rib or in the subcutaneous tissue. Jackson (1952) reported ...

Aratitiyopea lopezii is a robust perennial species of Xyridaceae from seasonally saturated, midto high-elevation, sandstone and granite sites in northern South America. The species lacks the scapose inflorescence characteristic of Xyridaceae and, having the gestalt of a rhizomatous bromeliad, it is seemingly aberrant in the family. However, closer examination confirms features consistent with t...