Can Jag använder Persistent Spell-effekt med Bloodline-krafter?

Jag gör en Protean Bloodline Sorceror, och jag undrade om du kan använda Persistent Spell on Bloodline powers. Såvitt jag har sett, har blodlinjerna inte samma nivåer som de vanliga stavningarna, så hur fungerar +2 till stavningsnivån?

För dem som inte vet det offhand:

Persistent Spell (Metamagic)

You can modify a spell to become more tenacious when its targets resist its effect. Benefit: Whenever a creature targeted by a persistent spell or within its area succeeds on its saving throw against the spell, it must make another saving throw against the effect. If a creature fails this second saving throw, it suffers the full effects of the spell, as if it had failed its first saving throw.

Level Increase: +2 (a persistent spell uses up a spell slot two levels higher than the spell’s actual level.) Spells that do not require a saving throw to resist or lessen the spell’s effect do not benefit from this feat.

Så min huvudsakliga anledning att fråga, med proteanblodslinjen får du denna kraft:

Protoplasm (Sp): At 1st level, you can create a ball of entropic protoplasm and hurl it at targets within 30 feet. This protoplasm acts as a tanglefoot bag that also inflicts 1 point of acid damage per round to a creature entangled by it. The protoplasm dissolves within 1d3 rounds. You may use this ability a number of times per day equal to 3 + your Charisma modifier.

Så jag ville veta om den här kraften kommer att utföras av Persistent Spell.